System for detecting signal during power grid equipment power restoration
Technical Field
The invention relates to the technical field of power grids, in particular to a system for detecting signals during power grid equipment power restoration.
Background
The scale and the quantity of local power grids are continuously enlarged, the tasks of capital construction, technical improvement and power grid equipment maintenance are various, and the maintenance abnormal signals generated along with the tasks are more and more. When the equipment needs to be restored to the power supply during maintenance, if abnormal signals related to the equipment still exist on the alarm window of the energy management system and are not restored, such as abnormality of a line protection device, disconnection of a switch control loop and the like, the safety of the equipment during restoration of the power supply is affected, and the equipment can trip in the power transmission process and even cause more serious consequences, so that the stability of a power system is endangered.
The traditional method is that before a certain device is reset, a power dispatcher manually checks whether a related unreset signal of the device exists in an alarm window of an energy management system, and judges whether the unreset signal affects the reset of the device. If the signal affecting the power restoration safety of the equipment is abnormal, such as the abnormality of a line protection device, the disconnection of a switch control loop, the abnormality of a bus differential protection device and the like, the power transmission of the equipment is allowed after the signal is restored. Some lines involve several sides of the substation side, and the signal of each side of the substation is checked before the line is powered. Once a dispatcher neglects carelessness, no signal is checked before power restoration or a signal of a substation on one side is left without being checked, the hidden danger of tripping when equipment is powered back is increased, and the situation that the equipment cannot be lost by manual checking can not be realized.
Disclosure of Invention
The invention provides a system for detecting signals when power grid equipment is in power restoration, aiming at overcoming the defects of low efficiency and poor accuracy caused by manual power restoration detection of the current equipment in the prior art.
The primary objective of the present invention is to solve the above technical problems, and the technical solution of the present invention is as follows:
a system for detecting a signal when a power grid device is back-energized, the system comprising: the system comprises an intelligent dispatching command platform, a dispatching master station, a telemechanical system terminal and a measurement and control device, wherein the intelligent dispatching command platform is in communication connection with the dispatching master station, the dispatching master station is in communication connection with the telemechanical system terminal, and the telemechanical system terminal is in communication connection with the measurement and control device.
Furthermore, the intelligent scheduling command platform is in communication connection with the scheduling master station through a data interface.
And furthermore, the dispatching master station comprises a data processing and analyzing control subsystem, and the data processing and analyzing control subsystem is used for collecting the real-time information of each transformer substation, analyzing and processing the real-time information and sending the analysis and processing result to the dispatching intelligent command platform.
Furthermore, the measurement and control device is arranged in the transformer substation and used for collecting the invited credit and the telemetering numerical value of the transformer substation equipment.
Furthermore, the intelligent scheduling command platform is used for compiling operation tickets, the operation tickets are passed through auditing and then transferred to a link to be executed of the intelligent scheduling command platform, and the operation tickets are transferred to an executing link of the intelligent scheduling command platform after being executed.
Further, the operation ticket comprises a plurality of keywords, and the keywords comprise: station name, equipment number.
Further, the data processing and analyzing subsystem detects whether the scheduling master station has unreturned signals related to the power recovery equipment according to the keywords, the measurement and control device is responsible for detecting whether the power flow value P, Q, I of the power recovery equipment is zero, and then the detection result is sent back to the data processing and analyzing subsystem of the scheduling master station through the telecontrol system terminal and the telecontrol channel.
Further, the data processing and analyzing subsystem obtains an analysis result according to preset conditions, and the result is transmitted back to the intelligent command platform through the data interface, wherein the preset conditions comprise: whether a master station has an unreturned signal or not is scheduled; and whether the remote value of the complex electric equipment is zero or not.
Further, if the analysis result is: if the dispatching master station has an unreturned signal related to the power restoration equipment, the dispatching intelligent command platform pops up information: if the signal of the power restoration equipment is not restored, the dispatcher is reminded of checking and processing before power restoration;
if the analysis result is: the dispatching master station has no unreturned signal related to the power recovery equipment, and the remote measurement value of the power recovery equipment is zero, then the dispatching intelligent command platform pops up information: and the signal detection of the complex power equipment is normal to remind a dispatcher.
Further, the pop-up message is a voice prompt message or a screen prompt message.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
the invention utilizes the dispatching intelligent command platform to construct a detection signal system during power restoration, realizes automatic detection of the restoration signal, and improves the detection efficiency and accuracy.
Drawings
FIG. 1 is a system framework diagram of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example 1
As shown in fig. 1, a system for detecting a signal when a power grid device is powered back, the system includes: the system comprises an intelligent dispatching command platform, a dispatching master station, a telemechanical system terminal and a measurement and control device, wherein the intelligent dispatching command platform is in communication connection with the dispatching master station, the dispatching master station is in communication connection with the telemechanical system terminal, and the telemechanical system terminal is in communication connection with the measurement and control device.
Furthermore, the intelligent scheduling command platform is in communication connection with the scheduling master station through a data interface.
And furthermore, the dispatching master station comprises a data processing and analyzing control subsystem, and the data processing and analyzing control subsystem is used for collecting the real-time information of each transformer substation, analyzing and processing the real-time information and sending the analysis and processing result to the dispatching intelligent command platform.
Furthermore, the measurement and control device is arranged in the transformer substation and used for collecting the invited credit and the telemetering numerical value of the transformer substation equipment.
Furthermore, the intelligent scheduling command platform is used for compiling operation tickets, the operation tickets are passed through auditing and then transferred to a link to be executed of the intelligent scheduling command platform, and the operation tickets are transferred to an executing link of the intelligent scheduling command platform after being executed.
More specifically, the operation ticket includes a plurality of keywords, and the keywords include: station name, equipment number. The data processing and analyzing subsystem detects whether the scheduling master station has unreturned signals related to the power recovery equipment or not according to the keywords, the measurement and control device is responsible for detecting whether the power flow value P, Q, I of the power recovery equipment is zero or not, and then the detection result is sent back to the data processing and analyzing subsystem of the scheduling master station through the telecontrol system terminal and the telecontrol channel.
Further, the data processing and analyzing subsystem obtains an analysis result according to preset conditions, and the result is transmitted back to the intelligent command platform through the data interface, wherein the preset conditions comprise: whether a master station has an unreturned signal or not is scheduled; and whether the remote value of the complex electric equipment is zero or not.
More specifically, if the analysis result is: if the dispatching master station has an unreturned signal related to the power restoration equipment, the dispatching intelligent command platform pops up information: if the signal of the power restoration equipment is not restored, the dispatcher is reminded of checking and processing before power restoration;
if the analysis result is: the dispatching master station has no unreturned signal related to the power recovery equipment, and the remote measurement value of the power recovery equipment is zero, then the dispatching intelligent command platform pops up information: and the signal detection of the complex power equipment is normal to remind a dispatcher.
In a specific embodiment, the pop-up message is a voice prompt message or a screen prompt message.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.