CN103199559A - Intelligent center control type solar energy family roof grid-connected power generation system and operating method thereof - Google Patents
Intelligent center control type solar energy family roof grid-connected power generation system and operating method thereof Download PDFInfo
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Abstract
The invention discloses an intelligent center control type solar energy family roof grid-connected power generation system and an operating method of the intelligent center control type solar energy family roof grid-connected power generation system. A roof photovoltaic module output end is connected with an inverter and sends photovoltaic energy to a power grid through a grid-connection switch and a bi-directional metering device. The intelligent center control type solar energy family roof grid-connected power generation system and the operating method of the intelligent center control type solar energy family roof grid-connected power generation system are characterized in that an intelligent measuring and controlling main machine and a security monitoring unit are arranged in the system, and a roof photovoltaic module, the inverter, the grid connected switch and the security monitoring unit are respectively connected with the intelligent measuring and controlling main machine and perform signal transmission and communication. The intelligent measuring and controlling main machine is connected with a monitoring system main station through a telecommunication network. The intelligent center control type solar energy family roof grid-connected power generation system and the operating method of the intelligent center control type solar energy family roof grid-connected power generation system can be operated in a grid-connection mode and a grid-separation mode so as to save family power consumption and also contribute to peak clipping and valley filling of a public power grid. Connection into the public power grid is achieved by interactive authentication control by operation staff through the monitoring system main station, and a grid-connection state of distributed power stations is ensured though the islet effect exists. The position of the grid-connection switch is confirmed through the security monitoring unit in a remote mode, and safety and states of the devices of the power stations are monitored. The intelligent center control type solar energy family roof grid-connected power generation system and the operating method of the intelligent center control type solar energy family roof grid-connected power generation system are easy to achieve and convenient to popularize.
Description
Technical field
The present invention relates to a kind of electricity generation system, be specifically related to a kind of intelligent middle controlled solar energy family's roof grid-connected system and method for operation thereof, and the method for operation of this grid-connected system.
Background technology
Solar energy power generating mainly contains from net and the dual mode that is incorporated into the power networks.Wherein the electric energy that utilizes solar cell to produce from the net solar energy power generating directly uses for electrical appliance, also can use storage battery to carry out energy storage; The electric energy that the solar energy power generating of being incorporated into the power networks produces solar cell carries out after the inversion, is connected with public electric wire net to realize being incorporated into the power networks, and is used for generating.
Existing less from the general capacity of net photovoltaic generating system, have characteristics simple in structure, that cost is low, shortcoming is can provide enough electric energy in order to guarantee under different sunlight conditions, and under no sunlight conditions such as overcast and rainy greasy weather and night, also can generate electricity for a long time, need to be equipped with solar cell and the storage battery that substantially exceeds the load load, cost improves greatly, and is shorter because of the life-span of storage battery simultaneously, difficult in maintenance, and discarded storage battery can cause secondary pollution to environment.
Requirement according to electricity net safety stable, the system that requirement is generated electricity by way of merging two or more grid systems must have and improves controlled monitoring and management means, facility for Technological Economy and management, the existing general capacity of photovoltaic generating system that is incorporated into the power networks is very big, so designing requirement height of grid-connected photovoltaic power generation system, complex management, floor space is very big, construction cost is very high, and this pattern can't be promoted in the city, and extensive grid-connected photovoltaic power station and city load center are apart from far, according to current operation of power networks level, the comprehensive line loss rate of domestic electrical network is about 6%, and the loss that brings because of remote electric energy transmission is very big, has reduced the Technological Economy of photovoltaic plant.
For improve energy resource structure, the development clean energy resource, country has given to comprise that to photovoltaic generation building policies such as subsidy and electricity price subsidy encourages, Cai but have only these subsidies of qualified acquisition of extensive grid-connected photovoltaic power station.Also appearance policy of grid company is encouraged the low profile photovoltaic electric station grid connection, but the related request height, operate strongly professionally, and is not suitable for domestic consumer and participates in construction.
Utilize the solar photovoltaic power plant of resident, unit roof construction have monomer small scale, cost low, with advantages such as load point overlaps, it is the construction mode that national policy is helped, but current automatic isolated island detection technique all can't reach 100% reliable, if a large amount of miniature power stations is inserted electrical network and is incorporated into the power networks, then can be because contingent island effect bring the unstable and personal device security problem of huge electrical network, the difficult problem that operation of power networks manages that declines that becoming distributes.
Summary of the invention
Problem at existing photovoltaic generating system exists the purpose of this invention is to provide a kind of intelligent middle controlled solar energy family's roof grid-connected system and method for operation thereof, utilizes the urban family roof to build solar photovoltaic power plant, takes full advantage of the city space; The solar energy family power station of being incorporated into the power networks on the roof can run on and is incorporated into the power networks and from two kinds of patterns of net, the utilization mode that is incorporated into the power networks, the photovoltaic energy that produces when sunny by day can enter public electric wire net, when night or sunlight deficiency, obtain electric energy from public electric wire net, thereby two-way electric energy exchange avoids using a large amount of storage batterys, can be used as family's emergency power supply during from the network operation pattern and use, form the little electrical network of family; Have tangible cut-off point in user's side, use video monitoring to carry out long-range verification and management; Utilize the central control system of telemanagement, realization is to the be incorporated into the power networks real-time monitoring in power station of each solar energy family roof, in conjunction with work ticket manual operation and programming operations, require the branch that is incorporated into the power networks, the closing operation in Long-distance Control power station according to operation of power networks, make the photovoltaic generation management platform include the electric power system centralized management in, guarantee the safety and stability of public electric wire net.
The technical scheme of finishing the foregoing invention purpose is: a kind of intelligent middle controlled solar energy family's roof grid-connected system and method for operation thereof, the output of roof photovoltaic module is connected with inverter, sends into electrical network by be incorporated into the power networks switch and the bidirectional measuring device photovoltaic energy after with inversion; It is characterized in that, be provided with intelligent monitoring main frame and safety monitoring unit in this intelligent middle controlled solar energy family's roof grid-connected system and the method for operation thereof, described roof photovoltaic module, inverter, the switch that is incorporated into the power networks are connected with the intelligent monitoring main frame respectively with the safety monitoring unit, carry out the signal transmission and are connected with the supervisory control system main website by telecommunications network with the described intelligent monitoring main frame of communicating by letter; Solar energy family inserts the supervisory control system main website place of public electric wire net at the power station of being incorporated into the power networks on the roof, is provided with the hand controller that is carried out interactive authentication control by operating personnel.
Described " being carried out the hand controller of interactive authentication control by operating personnel " can be device hardware, also can be made of software.
Have the storage battery interface in this intelligent middle controlled solar energy family's roof grid-connected system and the method for operation thereof, can be provided with or not be provided with storage battery (that is, storage battery 3 is as selectable unit); When being provided with storage battery, this storage battery is connected with the intelligent monitoring main frame.
With reference to Fig. 1: the present invention forms the power station 10 of being incorporated into the power networks, solar energy family roof by roof photovoltaic module 1, inverter 2, storage battery 3, the switch 4 that is incorporated into the power networks, safety monitoring unit 5 and intelligent monitoring main frame 6, main website of Surveillance center 20 is remote portion, and solar energy family is incorporated into the power networks on the roof and connects by telecommunications network 30 between power station 10 and the main website of Surveillance center 20.
The output of roof photovoltaic module 1 is connected with inverter 2, and switch 4 and bidirectional measuring device 4 are sent the photovoltaic energy after the inversion into electrical network by being incorporated into the power networks; Storage battery 3 is connected with inverter 2 as selectable unit; Roof photovoltaic module 1, inverter 2, storage battery 3, the switch 4 that is incorporated into the power networks are connected with intelligent monitoring main frame 6 respectively with safety monitoring unit 5, carry out the signal transmission and communicate by letter.
Inverter 2 comprises photovoltaic module interface 21, storage battery interface 22, power inverting unit 23, power control switch 24, inverter control unit 25, bidirectional measuring unit 26, exchanges and network interface 27 and data communication interface 28.Photovoltaic module interface 21 is connected roof photovoltaic module 1 and storage battery 3 respectively with storage battery interface 22, and direct current is introduced the power inverting power supply and controlled charging and discharging of accumulator.Annexation between the alternating current that power control switch can be controlled power inverting unit output and the public electric wire net that family's electrical network and the switch 4 that is incorporated into the power networks are connected.Inverter control unit 25 is connected with power inverting unit 23, power control switch 24 and bidirectional measuring unit 26, detects the state of AC-DC Circuit and each unit, the operation of control inverter.Network interface 27 is connected to public electric wire net by exchanging also in bidirectional measuring unit 26, can calculate realtime power and electric flux that solar energy family roof is incorporated into the power networks and exchanges between power station 10 and the public electric wire net, its electric current and power have direction, therefore can carry out bidirectional measuring to the electric flux that flows out and flow into.Inverter control unit 25 is by the exchanges data of data communication interface 28 realizations with extraneous other equipment.
The switch 4 that is incorporated into the power networks comprises under-voltage detecting unit 41, over-current detection unit 42, overheated detecting unit 43, the on-off controller 44 that is incorporated into the power networks, main switch Condition Monitoring Unit 45, tripping coil 46, data communication interface 47 and main switch 48.Under-voltage detecting unit 41, over-current detection unit 42, overheated detecting unit 43 are connected respectively to the on-off controller 44 that is incorporated into the power networks, voltage, electric current and temperature by main switch 48 are detected, when, overcurrent under-voltage when occurring or overheat condition information is sent to the on-off controller 44 that is incorporated into the power networks.That the on-off controller 44 that is incorporated into the power networks is received is under-voltage, when overcurrent or heat alarm, will start defence program, transmits control signal to tripping coil 46, makes main switch 48 tripping operations.Main switch monitoring means 45 can feed back to the location status of main switch 48 on-off controller 44 that is incorporated into the power networks, and is used for relevant breaker tripping and closing logic control.Tripping coil 48 is used for promoting the action of operating a switch of main switch 48, and guarantees that the state of main switch 48 can not recover voluntarily.The on-off controller 44 that is incorporated into the power networks is communicated by letter with intelligent monitoring main frame 6 by data communication interface 47, transmission state, action data, and under the control of intelligent monitoring main frame 6, receive and carry out the operational order of supervisory control system main website 20, comprise tripping operation and combined floodgate.
Safety monitoring unit 5 comprises rig camera 51, navigation system 52, intrusion detecting unit 53, vibration and obliquity sensor 54, Security Controller 55, clock unit 56, alarm 57 and data communication interface 58.Rig camera 51 is connected with Security Controller 55, and vision signal is provided, and is used for home security monitoring, the remote acknowledgement position of the switch of being incorporated into the power networks, the safety of Real Time Observation power station equipment and state; Navigation system 52, intrusion detecting unit 53, vibration and obliquity sensor 54 are connected respectively to Security Controller 55, locating information and intrusion detection signal are provided, clock unit 56 provides real-time clock (RTC) accurately for arithmetic and control unit 55, realize that data and logout have reliable timestamp, be convenient to inquiry and management, Security Controller 55 requires according to deploying troops on garrison duty to utilize alarm 57 to send warning after comprehensive judgement, and uploads security alarm information by data communication interface 58.
Intelligent monitoring main frame 6 comprises photovoltaic module monitoring unit 61, inverter monitoring unit 62, the monitoring switch unit 63 that is incorporated into the power networks, safety monitoring unit 64, arithmetic and control unit 65, clock unit 66, data storage cell 67, power network monitoring unit 68 and remote communication interface 69.Wherein photovoltaic module monitoring unit 61 connects roof photovoltaic module 1, inverter monitoring unit 62 connects inverter 2 and storage battery 3, be incorporated into the power networks monitoring switch unit 63 connects the switch 4 that is incorporated into the power networks, safety monitoring interface 54 connects safety monitoring unit 5, and be connected with arithmetic and control unit 65 respectively, realize solar energy family roof the be incorporated into the power networks real-time state monitoring and operation control of power station 10 each critical piece.Clock unit 66 provides real-time clock (RTC) accurately for arithmetic and control unit 65, realizes that data and logout have reliable timestamp, is convenient to inquiry and management.Data storage cell 67 is connected with arithmetic and control unit 65, and the storage of equipment configuration parameter and historical data is provided.Arithmetic and control unit 65 connects parameters such as voltage that power network monitoring unit 68 obtain family's electrical network and public electric wire net, frequency, is used for the control of inversion and anti-isolated island.Arithmetic and control unit 65 utilizes telecommunications network 30 and supervisory control system main website to communicate by remote communication interface 69, finishes the transmission of exchanges data and control command.
Supervisory control system main website 20 comprises prepositive communication computer 201, database 202, application server 203, user terminal 204 and hand controller 205, prepositive communication computer 201 interconnects by communication interface with database 202 and application server 203, application server 203 and user terminal 204 interconnection, hand controller 205 and user terminal 204 interconnection.
Family of the present invention roof, it is the roof on the broad sense, not only comprise dwelling house roof, villa roof, awning and balcony etc., comprise that also business premises, working shop of enterprise, beach vacant lot, hillside etc. can install the space of solar photovoltaic power plant, all belong to " family roof " of the present invention.
Solar energy family can install on the roof or awning of buildings such as residential building, villa at the power station 10 of being incorporated into the power networks on the roof, also can be installed in positions such as business premises, working shop of enterprise, beach vacant lot, hillside, the service data in intelligent monitoring main frame 6 is gathered and record solar energy family roof is incorporated into the power networks power station 10, by telecommunications network 30, be sent to supervisory control system main website 20; Supervisory control system main website 20 is installed on the user place, supervisory control system main website 20 is by telecommunications network 30, order is sent to the be incorporated into the power networks intelligent monitoring main frame 6 in power station 10 of solar energy family roof, intelligent monitoring main frame 6 is after resolve command, return needed data according to order to supervisory control system main website 20, and the be incorporated into the power networks mode of operation in power station 10 of control solar energy family roof.
Solar energy family inserts the operation of public electric wire nets at be incorporated into the power networks on roof power station 10, need carry out interactive authentication control by operating personnel by the supervisory control system main website, has the characteristics of work ticket manual operation and programming operations combination, and with reference to Fig. 8, the step of method of operation is:
Step 1, the solar energy family roof that is incorporated into the power networks for the needs power station 10 of being incorporated into the power networks, the user needs by 20 applications of supervisory control system main website and generates the operation element ticket that is incorporated into the power networks, and is operated according to the work ticket step by operating personnel;
The main switch 48 that step 2, operator's at first will utilize solar energy family roof to be incorporated into the power networks safety monitoring unit 5 provides in the power station 10 video are determined to be incorporated into the power networks in the switch 4 is in from the net position, then records operation failure and stops and net operation as main switch 48 malpositions;
Step 3, confirm that at video the power station 10 of being incorporated into the power networks, solar energy family roof has been in behind net state, supervisory control system main website 20 issues the order of being incorporated into the power networks, associated solar family is incorporated into the power networks on the roof after intelligent monitoring main frame in the power station 10 receives and resolve the order of being incorporated into the power networks, verify according to the safe key of reserving, if authentication failed is then returned failure information and is stopped also net operation;
Step 5, if the interconnection technology condition satisfies the requirement of being incorporated into the power networks, intellectual monitoring main frame 6 sends to be incorporated into the power networks to supervisory control system main website 20 confirms request, is manually reaffirmed and net operation by the operator, the operator also can cancel and was incorporated into the power networks and stops and net operation this moment;
Step 6, behind the artificial affirmation of operator and net operation, intellectual monitoring main frame 6 starts the also operation of control inverter 2, the switch 4 that will be incorporated into the power networks switches to the position of being incorporated into the power networks, finish and net operation, if be incorporated into the power networks operation failure, then send fail condition and stop also net operation to supervisory control system main website 20;
Step 7 is operated successfully if be incorporated into the power networks, and the operator is in the position of being incorporated into the power networks by solar energy family roof safety monitoring unit 5 provides in the power station 10 the video switch 4 of determining to be incorporated into the power networks that is incorporated into the power networks, and so far finishes and net operation.
Beneficial effect: the present invention is by installing solar photovoltaic power plant on the roof, be suitable for small-scale application, make the deep enough huge numbers of families of clean energy resource energy, the electricity consumption on the spot of generating electricity on the spot, avoid the long-distance transmissions of electric energy, comprehensive line loss rate according to current domestic electrical network 6%, with 10kV circuit about 8%, the line loss rate of 400V circuit about 10% is calculated, can reduce by 5～12% power outages by the present invention's electricity consumption on the spot of generating electricity on the spot, the alternative traditional energy of clean energy resource reduces discharging, reduce loss and can further reduce traditional energy consumption, fully realize energy-saving and emission-reduction, the economic benefit that this advantage produces and environmental benefit surpass under 5.5% the situation current domestic year power consumption growth rate and seem more remarkable; The present invention adopts solar energy power generating, has daytime produce electric energy time of illumination, and this moment is operating time and the peak of power consumption period of units such as factories and miness, enterprise, office just, and also the kinsfolk goes out to go to work and reduces the low ebb of electricity consumption exactly; The next social electricity consumption of night unit enters low ebb, but the kinsfolk goes home to make household electricity to enter peak period; Therefore the present invention adopts and net mode makes the photovoltaic power delivery that produces during the household electricity low ebb daytime to public electric wire net, can reduce power generating capacity and electrical network transmission electric weight, reduce energy resource consumption and loss, again from public electric wire net fetch electric energy during the household electricity peak night, remedy social electricity consumption by household electricity and reduce the energy output demand reduction that brings, keeping the power plant exerts oneself stable and the network load equilibrium, realize the saving of family's power consumption so on the one hand, made contribution for the public electric wire net peak load shifting on the other hand; Storage battery as apolegamy among the present invention uses as emergency power supply for minority power supply instability occasion, under the condition of being incorporated into the power networks, can not use fully existing in the net photovoltaic essential storage battery, do not need huge placement space and insulation safeguard procedures to keep the stable of battery stores environment, also avoid having only three to five years and causing in whole life cycle domestic demand because of the life of storage battery changing several times, more reduced the secondary pollution that heavy metal such as lead in the used and scrapped battery and acid solution cause environment; Current island of automation detection means all can't reach 100% reliable, in case the anti-malfunctioning or tripping of isolated island measure, will to power grid security particularly personal safety bring significant damage, the present invention adopts the special switch that is incorporated into the power networks, on the one hand as the obvious cut-off point between photovoltaic family roof pv grid-connected plant and the public electric wire net, be used for on-the-spot and remote acknowledgement electric station grid connection, sign and switch from network operation, be incorporated into the power networks the on the other hand operation of switch, particularly also net operation must be finished by central control system under administrative staff's intervention, guarantees that distributed power station can not keep wrong also net state because of island effect; The present invention adopts the central control system of telemanagement, include the power station of being incorporated into the power networks, the solar energy family roof that disperses in monitoring, turn parts into the whole, not only can utilize a large amount of family roofs, as the dwelling house roof, the villa roof, awning and balcony etc., power station, solar energy roof is installed, can also be installed in business premises, working shop of enterprise, positions such as beach vacant lot, hillside, take full advantage of the space, can utilize the distributed grid-connected photovoltaic power station butt joint national policy of whole operation on the one hand, strive for the subsidy to clean energy resource, operation management by central control system controllably inserts public electric wire net in order on the other hand, consistent with the management coordination of public electric wire net, be easy to realize, be convenient to promote.
Description of drawings
Fig. 1 is the theory diagram of intelligent middle controlled solar energy family's roof grid-connected system of the present invention and method of operation thereof.
Fig. 2 is the theory diagram of the inverter of intelligent middle controlled solar energy family's roof grid-connected system of the present invention and method of operation thereof.
Fig. 3 is the theory diagram of the switch that is incorporated into the power networks of intelligent middle controlled solar energy family's roof grid-connected system of the present invention and method of operation thereof.
Fig. 4 is the theory diagram of the safety monitoring unit of intelligent middle controlled solar energy family's roof grid-connected system of the present invention and method of operation thereof.
Fig. 5 is the theory diagram of the intelligent monitoring main frame of intelligent middle controlled solar energy family's roof grid-connected system of the present invention and method of operation thereof.
Fig. 6 is the theory diagram of the supervisory control system main website of intelligent middle controlled solar energy family's roof grid-connected system of the present invention and method of operation thereof.
Fig. 7 is the execution mode schematic diagram of intelligent middle controlled solar energy family's roof grid-connected system of the present invention and method of operation installation and operation thereof.
Fig. 8 is the FB(flow block) of intelligent middle controlled solar energy family's roof grid-connected system of the present invention and method of operation Long-distance Control and net operation.
Embodiment
Embodiment 1, intelligence middle controlled solar energy family's roof grid-connected system and method for operation thereof, as shown in Figure 1, the present invention forms the power station 10 of being incorporated into the power networks, solar energy family roof by roof photovoltaic module 1, inverter 2, storage battery 3, the switch 4 that is incorporated into the power networks, safety monitoring unit 5 and intelligent monitoring main frame 6, and main website of Surveillance center 20 is remote portion.
The output of roof photovoltaic module 1 is connected with inverter 2, and switch 4 and bidirectional measuring device 4 are sent the photovoltaic energy after the inversion into electrical network by being incorporated into the power networks; Storage battery 3 is connected with inverter 2 as selectable unit; Roof photovoltaic module 1, inverter 2, storage battery 3, the switch 4 that is incorporated into the power networks are connected with intelligent monitoring main frame 6 respectively with safety monitoring unit 5, carry out the signal transmission and communicate by letter.
Roof photovoltaic module 1 is the parts that carry out the photovoltaic conversion, converts solar energy to direct current and is transported to inverter 2; Inverter 2 is alternating current with dc inverter, can be family's mains supply, and be connected with public electric wire net by the switch 4 that is incorporated into the power networks, inverter 2 has the bidirectional measuring function can realize that the be incorporated into the power networks record of electric flux exchange between power station 10 and the public electric wire net of solar energy family roof is used for clearing; The switch 4 that is incorporated into the power networks can be used as be incorporated into the power networks obvious cut-off point between power station 10 and the public electric wire net of solar energy family roof, guarantees to be incorporated into the power networks, reliable and secure from net operation; Intelligent monitoring main frame 6 is realized solar energy family roof the be incorporated into the power networks real-time state monitoring and operation control of power station 10 each critical piece.
Solar energy family is incorporated into the power networks on the roof and connects by telecommunications network 30 between power station 10 and the main website of Surveillance center 20, realize solar energy family roof the uploading of power station 10 real-time running datas of being incorporated into the power networks, and control the operation of each parts according to the order of main website of Surveillance center 20, thereby change the be incorporated into the power networks operational mode in power station 10 of solar energy family roof.
The solar energy family power station 10 of being incorporated into the power networks on the roof may operate at and is incorporated into the power networks and from two kinds of patterns of net, is specially:
Pattern is incorporated into the power networks: be incorporated into the power networks on the roof equal operate as normal of each part in power station 10 of solar energy family, the switch 4 that is incorporated into the power networks works in and net state, the solar energy family power station 10 of being incorporated into the power networks on the roof may be in generating state and also may be in and use electricity condition, the bidirectional measuring unit 26 acquisition and recordings generating that inverter 2 is built-in or power and the electric energy of electricity consumption, intelligent monitoring main frame 6 is set up fixing communicating to connect with supervisory control system main website 20, and the solar energy family power station 10 of being incorporated into the power networks on the roof can receive the order of supervisory control system main website 20 and timely feedback at any time.
From the net pattern: be incorporated into the power networks on the roof switch 4 that is incorporated into the power networks in power station 10 of solar energy family works in from net state, be incorporated into the power networks on roof power station 10 of solar energy family is family's mains supply, intelligent monitoring main frame 6 is set up fixing communicating to connect with supervisory control system main website 20, only receive be incorporated into the power networks order just control inverter 2 and switch 4 actions of being incorporated into the power networks that supervisory control system main website 20 sends, make the power station 10 of being incorporated into the power networks, solar energy family roof switch to the pattern of being incorporated into the power networks.
As shown in Figure 2, the annexation between the control switch alternating current that can control power inverting unit output and the public electric wire net that family's electrical network and the switch 4 that is incorporated into the power networks are connected.Inverter control unit 25 is connected with power inverting unit 23, power control switch 24 and bidirectional measuring unit 26, detects the state of AC-DC Circuit and each unit, the operation of control inverter.Network interface 27 is connected to public electric wire net by exchanging also in bidirectional measuring unit 26, can calculate realtime power and electric flux that solar energy family roof is incorporated into the power networks and exchanges between power station 10 and the public electric wire net, its electric current and power have direction, therefore can carry out bidirectional measuring to the electric flux that flows out and flow into.Inverter control unit 25 is by the exchanges data of data communication interface 28 realizations with extraneous other equipment.
As shown in Figure 3, the switch 4 that is incorporated into the power networks can be realized voltage, electric current and temperature by main switch 48 are detected, and when, overcurrent under-voltage when occurring or overheat condition information is sent to the on-off controller 44 that is incorporated into the power networks.That the on-off controller 44 that is incorporated into the power networks is received is under-voltage, when overcurrent or heat alarm, will start defence program, transmits control signal to tripping coil 46, makes main switch 48 tripping operations.Main switch monitoring means 45 can feed back to the location status of main switch 48 on-off controller 44 that is incorporated into the power networks, and is used for relevant breaker tripping and closing logic control.Tripping coil 48 is used for promoting the action of operating a switch of main switch 48, and guarantees that the state of main switch 48 can not recover voluntarily.The on-off controller 44 that is incorporated into the power networks is communicated by letter with intelligent monitoring main frame 6 by data communication interface 47, transmission state, action data, and under the control of intelligent monitoring main frame 6, receive and carry out the operational order of supervisory control system main website 20.The action of switch 4 of being incorporated into the power networks need be passed through intelligent monitoring main frame 6, can move after utilizing telecommunications network 30 and supervisory control system main website 20 mutual, particularly and net operation.After breaking down or detecting public electric wire net outage, the on-off controller 44 that is incorporated into the power networks transmits control signal to tripping coil 48 and makes main switch 48 tripping operations, and the signal of gathering main switch monitoring means 45 obtain main switch 48 from net location status information, utilize data communication interface 47 to send to intelligent monitoring main frame 6, intelligent monitoring main frame 6 utilizes the telecommunications network 30 tripping operation information of will being correlated with to send to supervisory control system main website 20.Behind the public electric wire net telegram in reply, the on-off controller 44 that is incorporated into the power networks can't carry out and net operation automatically, be incorporated into the power networks order after intelligent monitoring main frame 6 is transmitted but wait for that supervisory control system main website 20 issues, under the normal condition of each detecting unit state, control main switch 48 closes a floodgate, enter and net state, and the signal of collection main switch monitoring means 45 sends confirmations through intelligent monitoring main frame 6 to supervisory control system main website 20.
As shown in Figure 4, safety monitoring unit 5 comprises rig camera 51, navigation system 52, intrusion detecting unit 53, vibration and obliquity sensor 54, Security Controller 55, clock unit 56, alarm 57 and data communication interface 59.Rig camera 51 can be the user vision signal is provided, whether the be incorporated into the power networks location status of switch 4 of supervision is incorporated into the power networks for remote acknowledgement, dust stratification on the Real Time Observation roof photovoltaic module and cover situation, and can carry out video acquisition for safety monitoring to family's surrounding enviroment, comprise the safe condition of power station equipment; Navigation system 52 can adopt GPS(Global Position System, global positioning system) or mobile base station locate mode, determine the be incorporated into the power networks position in power station 10, solar energy family roof, prevent undelegated movement; Personnel in the intrusion detecting unit 53 detectable defence areas enter and are movable; Vibration and obliquity sensor 54 are used for detection to solar energy family roof be incorporated into the power networks shake-up and the movement in power station 10.Be connected respectively to Security Controller 55 with upper-part, vision signal, locating information and intrusion detection signal are provided, clock unit 56 provides real-time clock (RTC) accurately for arithmetic and control unit 55, realize that data and logout have reliable timestamp, be convenient to inquiry and management, Security Controller 55 requires according to deploying troops on garrison duty to utilize alarm 57 to send warning after comprehensive judgement, and uploads security alarm information by data communication interface 58.
As shown in Figure 5, intelligent monitoring main frame 6 comprise photovoltaic module monitoring unit 61, inverter monitoring unit 62, the monitoring switch unit 63 that is incorporated into the power networks, safety monitoring unit 64, arithmetic and control unit 65, clock unit 66, data storage cell 67, power network monitoring unit 68 and remote communication interface 69.Wherein photovoltaic module monitoring unit 61 connects roof photovoltaic module 1, inverter monitoring unit 62 connects inverter 2 and storage battery 3, be incorporated into the power networks monitoring switch unit 63 connects the switch 4 that is incorporated into the power networks, safety monitoring interface 54 connects safety monitoring unit 5, and be connected with arithmetic and control unit 65 respectively, realize solar energy family roof the be incorporated into the power networks real-time state monitoring and operation control of power station 10 each critical piece.Clock unit 66 provides real-time clock (RTC) accurately for arithmetic and control unit 65, realizes that data and logout have reliable timestamp, is convenient to inquiry and management.Data storage cell 67 is connected with arithmetic and control unit 65, and the storage of equipment configuration parameter and historical data is provided.Arithmetic and control unit 65 connects parameters such as voltage that power network monitoring unit 68 obtain family's electrical network and public electric wire net, frequency, is used for the control of inversion and anti-isolated island.Arithmetic and control unit 65 utilizes telecommunications network 30 and supervisory control system main website 20 to communicate by remote communication interface 69, finishes the transmission of exchanges data and control command.When power network monitoring unit 68 detected the public electric wire net outage, arithmetic and control unit 65 can send trip signal to the switch 4 that is incorporated into the power networks, and system is entered from net state, can order inverter 2 to be shut down in case of necessity.From net state the time, when power network monitoring unit 68 detects public electric wire net and restores electricity, arithmetic and control unit 65 passes through remote communication interface 69 with telegram in reply information, utilize telecommunications network 30 notice supervisory control system main websites 20, but can not start be incorporated into the power networks switch 4 of inverter 2 and order closes a floodgate, need to wait for that supervisory control system main website 20 issues the order of being incorporated into the power networks, in supervisory control system main website 20 and operating personnel's presence, start inverter 2 and control switch 4 combined floodgates that are incorporated into the power networks according to the condition that is incorporated into the power networks, enter and net state, obtain the state of main switch 48 afterwards by the signal of rig camera 51 videos and main switch monitoring means 45, by remote communication interface 69, utilize telecommunications network 30, send confirmation to supervisory control system main website 20.
As shown in Figure 6, supervisory control system main website 20 comprises prepositive communication computer 201, database 202, application server 203, user terminal 204 and hand controller 205, prepositive communication computer 201 interconnects by communication interface with database 202 and application server 203, application server 203 and user terminal 204 interconnection, hand controller 205 and user terminal 204 interconnection.
When hand controller 205 is used for being incorporated into the power networks being incorporated into the power networks of power station 10 on user's Long-distance Control solar energy family roof, prevent unauthorized operation and misoperation.When the user is undertaken by user terminal 204 and during net operation, the function of hand controller 205 is activated, at hand controller 205 enterprising line operates, the action of guaranteeing to be incorporated into the power networks is to realize set by step under effective control of operating personnel to the user according to the prompting of user terminal 204.
Solar energy family installs on the roof or awning of buildings such as residential buildings, villa at be incorporated into the power networks on roof power station 10, the service data in intelligent monitoring main frame 6 is gathered and record solar energy family roof is incorporated into the power networks power station 10, by telecommunications network 30, be sent to supervisory control system main website 20; Supervisory control system main website 20 is installed on the user place, supervisory control system main website 20 is by telecommunications network 30, order is sent to the be incorporated into the power networks intelligent monitoring main frame 6 in power station 10 of solar energy family roof, intelligent monitoring main frame 6 is after resolve command, return needed data according to order to supervisory control system main website 20, and the be incorporated into the power networks mode of operation in power station 10 of control solar energy family roof.
As shown in Figure 7, for field conduct of the present invention, can be at some residential buildings, the power station 10 of being incorporated into the power networks, many group solar energy family roof is installed on the roof of villa or the awning, by a supervisory control system main website 20 power station 10 of being incorporated into the power networks, this many group solar energy family roof is managed and communicates by letter, the Monitoring Data that the user can utilize this multiple spot to distribute, at any time obtain the be incorporated into the power networks real time information of power station 10 operations of many group solar energy family roof, and can be according to the requirement of utility network safe and stable operation, control at any time that one or more groups solar energy family roof is incorporated into the power networks to be incorporated into the power networks in power station 10 or from net.
When normal operation, the running state data that intelligent monitoring main frame 6 in the power station 10 is collected the location status data of the solar power generation data of roof photovoltaic modulies 1, the service data of inverter 2, voltage and the charging and discharging state of storage battery 3, the switch 4 that is incorporated into the power networks and intelligent monitoring main frame 6 self is incorporated into the power networks on every group of solar energy family roof, be sent to supervisory control system main website 20 by telecommunications network 30 and handle, analyze and show, realize many groups solar energy family roof continuing to monitor of power station 10 running statuses of being incorporated into the power networks.
Unusual and fault take place in the parts in certain group solar energy family roof is incorporated into the power networks power station 10, and circuit is short-circuited, opens circuit, during earth fault, intelligent monitoring main frame 6 is analyzed according to the data of gathering, find the generation of phenomenon of the failure, record also sends fault alarm information by telecommunications network 30 to supervisory control system main website 20, realizes the be incorporated into the power networks monitoring of power station 10 faults and abnormal operating condition of solar energy family roof.
When the power station 10 of being incorporated into the power networks, needs groups solar energy family roof breaks away from public electric wire nets when entering from the net pattern; the user can send from net order by supervisory control system main website 20 power station 10 of being incorporated into the power networks to solar energy family roof; after the net order that associated solar family is incorporated into the power networks on the roof that intelligent monitoring main frame in the power station 10 receives and solution is isolated; according to from the net action norm; the switch 4 that will be incorporated into the power networks switches to from the net position; and control inverter 2 shuts down or is operated in personal electricity condition, finishes from net operation.
As shown in Figure 8, when the power station 10 of being incorporated into the power networks, needs groups solar energy family roof enters when being incorporated into the power networks pattern, and net operation has the characteristics of work ticket manual operation and programming operations combination, concrete steps are as follows: the power station 10 of being incorporated into the power networks, the solar energy family roof that is incorporated into the power networks for needs, the user needs by 20 applications of supervisory control system main website and generates the operation element ticket that is incorporated into the power networks, and is operated according to the work ticket step by operating personnel; The main switch 48 that operator's at first will utilize solar energy family roof to be incorporated into the power networks safety monitoring unit 5 provides in the power station 10 video is determined to be incorporated into the power networks in the switch 4 is in from the net position, then records operation failure and stops and net operation as main switch 48 malpositions; Confirm that at video the power station 10 of being incorporated into the power networks, solar energy family roof has been in behind net state, supervisory control system main website 20 issues the order of being incorporated into the power networks, associated solar family is incorporated into the power networks on the roof after intelligent monitoring main frame in the power station 10 receives and resolve the order of being incorporated into the power networks, verify according to the safe key of reserving, if authentication failed is then returned failure information and is stopped also net operation; Order is proved to be successful if be incorporated into the power networks, and then intellectual monitoring main frame 6 detects the interconnection technology condition according to being incorporated into the power networks action norm, does not satisfy as condition and then returns failure cause and stop also net operation; If the interconnection technology condition satisfies the requirement of being incorporated into the power networks, intellectual monitoring main frame 6 sends to be incorporated into the power networks to supervisory control system main website 20 confirms request, is manually reaffirmed and net operation by the operator, and the operator also can cancel and was incorporated into the power networks and stops and net operation this moment; Behind the artificial affirmation of operator and net operation, intellectual monitoring main frame 6 starts the also operation of control inverter 2, and the switch 4 that will be incorporated into the power networks switches to the position of being incorporated into the power networks, and finishes and net operation, if be incorporated into the power networks operation failure, then send fail condition and stop also net operation to supervisory control system main website 20; Operate successfully if be incorporated into the power networks, the operator is in the position of being incorporated into the power networks by solar energy family roof safety monitoring unit 5 provides in the power station 10 the video switch 4 of determining to be incorporated into the power networks that is incorporated into the power networks, and so far finishes and net operation.
Claims (10)
1. intelligent middle controlled solar energy family's roof grid-connected system and method for operation thereof, the output of roof photovoltaic module is connected with inverter, sends into electrical network by be incorporated into the power networks switch and the bidirectional measuring device photovoltaic energy after with inversion; It is characterized in that, be provided with intelligent monitoring main frame and safety monitoring unit in this intelligent middle controlled solar energy family's roof grid-connected system and the method for operation thereof, described roof photovoltaic module, inverter, the switch that is incorporated into the power networks are connected with the intelligent monitoring main frame respectively with the safety monitoring unit, carry out the signal transmission and communicate by letter; Described intelligent monitoring main frame is connected with the supervisory control system main website by telecommunications network; Solar energy family inserts the supervisory control system main website place of public electric wire net at the power station of being incorporated into the power networks on the roof, is provided with the hand controller that is carried out interactive authentication control by operating personnel.
2. intelligent middle controlled solar energy family's roof grid-connected system according to claim 1 and method of operation thereof, it is characterized in that described inverter is provided with photovoltaic module interface, storage battery interface, power inverting unit, power control switch, inverter control unit, bidirectional measuring unit, exchanges and network interface and data communication interface.
3. intelligent middle controlled solar energy family's roof grid-connected system according to claim 2 and method of operation thereof, it is characterized in that, described inverter control unit is connected with power inverting unit, power control switch and bidirectional measuring unit, detect the state of AC-DC Circuit and each unit, the operation of control inverter, and network interface is connected to public electric wire net by exchanging also to connect the bidirectional measuring unit.
4. intelligent middle controlled solar energy family's roof grid-connected system according to claim 2 and method of operation thereof is characterized in that, described inverter control unit is by the exchanges data of data communication interface realization with extraneous other equipment.
5. intelligent middle controlled solar energy family's roof grid-connected system according to claim 2 and method of operation thereof, it is characterized in that the described switch that is incorporated into the power networks comprises under-voltage detecting unit, over-current detection unit, overheated detecting unit, the on-off controller that is incorporated into the power networks, main switch Condition Monitoring Unit, tripping coil, data communication interface and main switch; Wherein under-voltage detecting unit, over-current detection unit, overheated detecting unit, main switch monitoring means are connected respectively to the on-off controller that is incorporated into the power networks, the location status of under-voltage, overcurrent or overheat condition and main switch is provided, be used for the control tripping coil and make the main switch tripping operation, be incorporated into the power networks on-off controller by data communication interface and intelligent monitoring main-machine communication, feedback states information receives and operation command.
6. intelligent middle controlled solar energy family's roof grid-connected system according to claim 1 and method of operation thereof, it is characterized in that described safety monitoring is provided with rig camera, navigation system, intrusion detecting unit, vibration and obliquity sensor, Security Controller, clock unit, alarm and data communication interface in the unit; Wherein, rig camera can provide vision signal, is used for home security monitoring, the remote acknowledgement position of the switch of being incorporated into the power networks, the safety of Real Time Observation power station equipment and state; Navigation system, intrusion detecting unit, vibration and obliquity sensor are connected respectively to Security Controller, vision signal, locating information and intrusion detection signal are provided, clock unit provides real-time clock (RTC) accurately for arithmetic and control unit, realizes that data and logout have reliable timestamp; Security Controller requires according to deploying troops on garrison duty to utilize alarm to send warning after comprehensive judgement, and uploads security alarm information by data communication interface.
7. intelligent middle controlled solar energy family's roof grid-connected system according to claim 1 and method of operation thereof, it is characterized in that, be provided with photovoltaic module monitoring unit, inverter monitoring unit in the described intelligent monitoring main frame, the monitoring switch unit that is incorporated into the power networks, safety monitoring unit, arithmetic and control unit, clock unit, data storage cell, power network monitoring unit and remote communication interface; Wherein the photovoltaic module monitoring unit connects the roof photovoltaic module, and the inverter monitoring unit connects inverter and storage battery, and the monitoring switch unit that is incorporated into the power networks connects the switch that is incorporated into the power networks, and the safety monitoring interface connects the safety monitoring unit, and is connected with arithmetic and control unit respectively; Data storage cell is connected with arithmetic and control unit, and the storage of equipment configuration parameter and historical data is provided; Arithmetic and control unit connects parameters such as voltage that the power network monitoring unit obtains family's electrical network and public electric wire net, frequency, is used for the control of inversion and anti-isolated island; Arithmetic and control unit utilizes telecommunications network and supervisory control system main website to communicate by remote communication interface, finishes the transmission of exchanges data and control command.
8. intelligent middle controlled solar energy family's roof grid-connected system according to claim 1 and method of operation thereof is characterized in that, described telecommunications network adopts Ethernet wire communication mode, optical fiber wire communication mode; Or the combination that is applicable to a kind of and two or more modes in the remote wireless network ways of connecting of employing global system for mobile communications, GPRS, code division multiple access, third generation digital communication, worldwide interoperability for microwave access or Wireless Fidelity.
9. according to the described intelligent middle controlled solar energy family's roof grid-connected system of one of claim 1-8 and method of operation thereof, it is characterized in that, be provided with prepositive communication computer, database, application server, user terminal and hand controller in the described supervisory control system main website; Wherein, prepositive communication computer and database and application server interconnect by communication interface, application server and user terminal interconnection, hand controller and user terminal interconnection.
10. the method for operation of the described intelligent middle controlled solar energy of claim 1 family roof grid-connected system is characterized in that step is as follows:
Step 1, the solar energy family roof that is incorporated into the power networks for the needs power station of being incorporated into the power networks, the user needs by the application of supervisory control system main website and generates the operation element ticket that is incorporated into the power networks, and is operated according to the work ticket step by operating personnel;
The main switch that step 2, operator's at first will utilize solar energy family roof the to be incorporated into the power networks safety monitoring unit provides in the power station video are determined to be incorporated into the power networks in the switch is in from the net position, then records operation failure and stops and net operation as the main switch malposition;
Step 3, confirm that at video the power station of being incorporated into the power networks, solar energy family roof has been in behind net state, the supervisory control system main website issues the order of being incorporated into the power networks, associated solar family is incorporated into the power networks on the roof after intelligent monitoring main frame in the power station receives and resolve the order of being incorporated into the power networks, verify according to the safe key of reserving, if authentication failed is then returned failure information and is stopped also net operation;
Step 4, if the order of being incorporated into the power networks is proved to be successful, then the intellectual monitoring main frame detects the interconnection technology condition according to being incorporated into the power networks action norm, does not satisfy as condition and then returns failure cause and stop also net operation;
Step 5, if the interconnection technology condition satisfies the requirement of being incorporated into the power networks, the intellectual monitoring main frame sends to be incorporated into the power networks to the supervisory control system main website confirms request, is manually reaffirmed and net operation by the operator, the operator also can cancel and was incorporated into the power networks and stops and net operation this moment;
Step 6, behind the artificial affirmation of operator and net operation, the operation of intellectual monitoring host-initiated and control inverter, the switch that will be incorporated into the power networks switches to the position of being incorporated into the power networks, finish and net operation, if be incorporated into the power networks operation failure, then send fail condition and stop also net operation to the supervisory control system main website;
Step 7 is operated successfully if be incorporated into the power networks, and the operator is in the position of being incorporated into the power networks by the solar energy family roof safety monitoring unit provides in the power station 10 the video switch of determining to be incorporated into the power networks that is incorporated into the power networks, and so far finishes and net operation.
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| CN201310077527.XA CN103199559B (en) | 2013-02-25 | 2013-03-11 | Intelligent center control type solar energy family roof grid-connected power generation system and operating method thereof |
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| CN201320085116 | 2013-02-25 | ||
| CN201320085116.0 | 2013-02-25 | ||
| CN201310077527.XA CN103199559B (en) | 2013-02-25 | 2013-03-11 | Intelligent center control type solar energy family roof grid-connected power generation system and operating method thereof |
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