EP4256245A1 - Système thermique incluant une pompe à chaleur comprenant deux types de compresseur - Google Patents
Système thermique incluant une pompe à chaleur comprenant deux types de compresseurInfo
- Publication number
- EP4256245A1 EP4256245A1 EP21845086.4A EP21845086A EP4256245A1 EP 4256245 A1 EP4256245 A1 EP 4256245A1 EP 21845086 A EP21845086 A EP 21845086A EP 4256245 A1 EP4256245 A1 EP 4256245A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical energy
- storage device
- thermal system
- energy storage
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2240/00—Fluid heaters having electrical generators
- F24H2240/01—Batteries, electrical energy storage device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—Component parts or details not otherwise provided for in this subclass
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/024—Compressor control by controlling the electric parameters, e.g. current or voltage
Definitions
- TITLE Thermal system including a heat pump comprising two types of compressor
- the present invention relates to a thermal system comprising a heat pump and capable of being powered by an external electrical power source comprising an external alternating voltage electrical network.
- the invention also relates to a method for controlling such a thermal system.
- a thermal system of the aforementioned type comprising a heat pump configured to transfer thermal energy from a cold source to a hot source, by means of a refrigerant fluid.
- the operational coefficient of performance (COP) which corresponds to the efficiency of a heat pump, is a parameter that measures the heat transfer efficiency of the heat pump. It is known that when the temperature difference between the cold source and the hot source increases, the efficiency of the heat pump decreases sharply. In particular, in the temperature ranges used for heating dwellings, the operational coefficient of performance can become very low when the temperature of the cold source drops below a determined temperature threshold, typically zero degrees Celsius.
- heat pumps generate high power demands, in particular during the start-up phase.
- the electrical installations necessary to generate these powers must therefore be sized to meet these power requirements, which can represent a high cost, or even require modifying one's subscription vis-à-vis an electricity supplier. This can have a negative impact on the stability of the electricity supply at the local level, with in particular a risk of blackout.
- heat pumps are generally designed to operate only in conjunction with some sort of predetermined external power source, typically an AC voltage source.
- the object of the present invention is to propose a thermal system including a heat pump responding to all or part of the aforementioned problems.
- thermal system intended to be electrically connected to an external electrical power source
- said thermal system comprising a heat pump, and an electrical power supply system
- the heat pump comprising at least a first compressor capable of compressing a refrigerant when it is powered by a direct electric current, and at least a second compressor capable of compressing the refrigerant when it is powered by an alternating electric current
- the power supply system being able to be supplied with electricity by the external power supply source and to deliver the electric current supplying the said at least one first compressor and the said at least second compressor, the power supply system comprising a plurality electronic components interposed between the external electrical power source and said at least one first compressor and said at least second compressor; said electrical power system comprising an electrical energy storage device.
- the heat pump and the electrical energy storage device can be powered by the external electrical power source, and the heat pump can be powered by the electrical energy storage device and/or by the external power source.
- the thermal system can be supplied with electrical energy by adapting to the type of electrical energy source available to adapt to fluctuations in the electrical energy supply by the external electrical power source.
- the first compressor can be supplied with direct voltage electrical energy when it is available.
- the electrical energy storage device can be used to power the first compressor, so as to limit high power demands on the external power source.
- the electrical energy storage device comprises at least one element chosen from the group comprising an electric battery based on electrochemical cells, a power capacitor and a system comprising a fuel cell, an electrolyser and a gas storage device.
- the external electrical power source comprises at least one direct current source generating a direct current and chosen from the set comprising at least one photovoltaic panel, a fuel cell, a supercapacitor, a battery based on an assembly of electrochemical cells.
- one of said electronic components of the electrical power supply system comprises a step-down step-up step-up comprising a first input connected to the electrical energy storage device, and an output connected to the first compressor.
- the step-down-boost can include a second input connected to the direct current source.
- one of said electronic components of the electrical power supply system comprises an inverter comprising a first input connected to the electrical energy storage device and an output connected to the second compressor.
- the inverter may include a second input connected to the direct current source.
- the electrical energy storage device can then be configured to inject electrical energy into the external electrical network, by intermediary of the inverter.
- the external electric power source comprises an external alternating voltage electric network
- one of the said electronic components of the electric power system comprises a rectifier interposed between the external electric network of a leaves, and the first compressor and the electrical energy storage device on the other hand
- the rectifier can be configured to transform the alternating voltage of the external electrical network into a direct voltage
- the rectifier is configured to transform the alternating voltage of the external electrical network into a direct voltage suitable for the electrical supply of the electrical energy storage device.
- the thermal system comprises a control unit configured to place the thermal system in at least one of the following four operating modes:
- the thermal system being able to occupy, at least at a given instant, at least one of said four operating modes.
- control unit can be configured to place the thermal system in a fifth mode of operation in which the first compressor is powered by the external electrical network via the rectifier.
- control unit can be configured to place the thermal system in a sixth mode operating mode in which the first compressor is powered by the direct current source and/or by the electrical energy storage device via the step-down-step-up voltage.
- control unit can be configured to place the thermal system in a seventh mode of operation in which the second compressor can be powered by the direct current source and/or the electrical energy storage device, via the inverter.
- control unit is configured to place the thermal system in at least one of the operating modes previously described according to a predetermined strategy algorithm, recorded in a memory of the control unit .
- the strategy algorithm is configured to optimize energy consumption, for example when the electrical energy from the external electrical power source is most available.
- the strategy algorithm can be configured to place the thermal system in priority in the second operating mode, when a cost of supplying electrical energy for the heat pump by the external electrical power source is lower than a cost of supplying electrical energy for the heat pump by the electrical energy storage device.
- the strategy algorithm can be configured to place the thermal system as a priority in the first operating mode when a cost of supplying electrical energy for the heat pump by the external electrical power source is greater than a cost of supplying electrical energy for the heat pump by the electrical energy storage device.
- the strategy algorithm is configured to minimize the cost of the electricity subscription.
- the thermal system comprises a communication module configured to communicate with a management server placed remotely and/or a first measuring device configured to measure and to communicate to the control unit a quantity of electrical energy delivered by the external electrical power source to an electrical installation including the thermal system, the control unit being configured to place the thermal system in at least one of the three operating modes taking into account the quantity of electrical energy measured by the first measuring device.
- the quantity of electrical energy is a quantity of electrical energy per unit of time, that is to say an electrical power.
- the first measuring device may comprise a counter known under the name “Linky” from the company ERDF or any other type of smart meter, or “smartmeter” according to the appropriate Anglo-Saxon terminology.
- the electrical installation may correspond to the general electrical installation of a dwelling in which the thermal system is installed.
- the electrical installation mentioned here includes not only the claimed system but also all other appliances in the dwelling.
- control unit is configured to place the thermal system in the second operating mode when the quantity of electrical energy delivered to the electrical installation by the external electrical power source is less than a value predetermined.
- the predetermined value can be substantially equal to the quantity of electrical energy delivered corresponding to the maximum power subscribed for the electrical installation.
- control unit is configured to place the thermal system in the first operating mode when the quantity of electrical energy delivered to the electrical installation by the external electrical power source is greater than a threshold predetermined.
- the predetermined threshold can be substantially equal to the quantity of electrical energy delivered corresponding to the maximum power subscribed for the electrical installation.
- each element of the thermal system is connected to the same external electrical network, and the thermal system is placed in at least one of the seven operating modes described above, according to the data of the first measure or according to orders received from the management server placed remotely.
- the thermal system makes it possible to improve the continuity of the service, in particular when the electrical distribution network needs the highly consuming members to be erased, for example during periods of high consumption, for example in winter.
- the thermal system comprises an element for determining a state of charge of the electrical energy storage device and in which the control unit is configured to place the thermal system in at least one of the aforementioned modes of operation taking into account the state of charge of the electrical energy storage device.
- the thermal system comprises a second measuring device configured to measure and to communicate to the unit for controlling a quantity of electrical energy delivered to the heat pump by the electrical energy storage device, and a first temperature measurement module configured to measure and communicate to the control unit a temperature of the storage device of electrical energy, and in which the control unit is configured to control the quantity of energy delivered by the electrical energy storage device and measured by the second measuring member as a function of the temperature of the storage device electrical energy measured by the first temperature measurement module, in particular so as to maintain the temperature of the electrical energy storage device at a temperature corresponding to maximum efficiency of the electrical energy storage device.
- the efficiency of the electrical energy storage device is optimized. Furthermore, and synergistically, the arrangements described above make it possible to increase the lifetime of the electrical energy storage device.
- the thermal system comprises a third measurement device configured to measure and to communicate to the control unit a quantity of total electrical energy consumed by the heat pump and a second temperature measurement module configured to measure and communicate to the control unit a temperature of a fluid of a heat source with which an evaporator of the heat pump is in a heat exchange situation, and in which the control unit is configured to place the thermal system in at least one of the first and second modes of operation taking into account the quantity of electrical energy measured by the third measuring device and the quantity of electrical energy measured by the second measuring device a way ensuring modulation of the ratio between the quantity of electrical energy delivered to the heat pump by the electrical energy storage device and the quantity of electrical energy total energy consumed by the heat pump as a function of the temperature of the fluid measured by the second temperature measurement module.
- the electrical energy storage device is configured to be able to be in a heat exchange situation with the fluid of the heat source with which the evaporator of the heat pump is in a heat exchange situation. heat, allowing at least a portion of residual heat generated by the electrical energy storage device to provide preheating of said fluid when the temperature of said fluid measured by the second temperature measurement module is below a temperature threshold predetermined.
- the predetermined temperature threshold is between -5 degrees Celsius and +5 degrees Celsius, preferably between -2 degrees Celsius and +2 degrees Celsius, preferably equal to 0 degrees Celsius.
- the invention also relates to a method for controlling a thermal system, comprising a heat pump, an electrical energy storage device operating under direct current, a control unit and a communication module, the heat pump comprising at least one first compressor capable of compressing a refrigerant when it is powered by a direct electric current, and at least a second compressor capable of compressing the refrigerant when it is powered by an alternating electric current; the method comprising:
- step consisting in placing the thermal system in a first operating mode in which the first compressor is supplied with electrical energy by the electrical energy storage device,
- step consisting in placing the thermal system in a third mode of operation in which the electrical energy storage device is supplied with electrical energy by the external electrical power source,
- step consisting in placing the thermal system in a fourth operating mode in which the electrical energy storage device injects electrical energy into the external electrical network
- the communication module communicates with a first measuring device configured to measure and to communicate to the control unit a quantity of electrical energy delivered by the power source electrical system external to an electrical installation including the thermal system, the control unit placing the thermal system in the first mode of operation when the quantity of electrical energy measured by the first measuring device and delivered to the electrical installation is greater than a predetermined threshold.
- the threshold is predetermined as a function of a subscribed power for the supply of electrical energy by the electrical distribution network.
- the system makes it possible to improve the continuity of the service, in particular when the external electrical network needs the highly consuming components to be erased, for example during periods of high consumption, for example in winter for the generation of heat. or in summer for cooling.
- the control method comprises a step in which a second measuring member measures and communicates to the control unit a quantity of electrical energy delivered to the heat pump by the electrical energy storage device , a step in which the first temperature measurement module measures and communicates to the control unit a temperature of the electrical energy storage device, and a step in which the control unit controls the quantity of energy delivered by the electrical energy storage device and measured by the second measurement member as a function of the temperature of the electrical energy storage device measured by the first temperature measurement module, in particular so as to maintain the temperature of the storage device electrical energy at a temperature corresponding to maximum efficiency of the electrical energy storage device.
- the efficiency of the electrical energy storage device is optimized.
- the control method comprises a step in which the control unit places the thermal system in a fourth mode of operation for which the electrical energy storage device transmits electrical energy to the external electrical power source via the inverter, when the state of charge of the storage electrical energy determined by the element for determining a state of charge is greater than a given state of charge threshold.
- the thermal system makes it possible to transmit to the external electrical network a certain quantity of electrical energy previously stored in the electrical energy storage device.
- the thermal system comprises a third measurement device configured to measure and to communicate to the control unit a quantity of total electrical energy consumed by the heat pump and a second temperature measurement module configured to measure and communicate to the control unit a temperature of a fluid of a heat source with which an evaporator of the heat pump is in a heat exchange situation
- the control method comprises a step in which the control unit places the thermal system in the first operating mode and/or in the second operating mode taking into account the quantity of electrical energy measured by the third measuring device and the quantity of electrical energy measured by the second measuring device in a way ensuring a modulation of the ratio between the quantity of electrical energy delivered to the heat pump by the storage device of electrical energy and the amount of total electrical energy consumed by the heat pump as a function of the temperature of the fluid measured by the second temperature measurement module.
- control method comprises the following steps:
- the cost of supplying electrical energy is optimized.
- the heat pump comprises: at least a first valve arranged between an evaporator of the heat pump, and the second compressor and configured to allow the circulation of the refrigerant fluid between the evaporator and the second compressor in an open position, or alternatively to prevent the passage of the refrigerant between the evaporator and the second compressor in a closed position; at least one second valve arranged between the evaporator and the first compressor, and configured to allow the circulation of the refrigerant fluid between the evaporator and the first compressor in an open position, or alternatively to prevent the passage of the refrigerant fluid between the the evaporator and the first compressor in a closed position; at least one third valve arranged between the second compressor and a condenser of the heat pump, and configured to allow the circulation of the refrigerant between the second compressor and the condenser in an open position, or alternatively to prevent the passage of the fluid refrigerant between the second compressor and the condenser in a closed position; and at least a fourth valve
- control method then comprises: a step consisting in placing the at least one first valve and the at least one third valve in the closed position, and in placing the at least one second valve and the at least a fourth valve in the open position when the thermal system is placed in the first mode of operation; and a step of placing the at least one second valve and the at least one fourth valve in the closed position, and placing the at least one first valve and the at least one third valve in the open position when the thermal system is placed in the second mode of operation.
- FIG. 1 schematically represents an example of a thermal system according to the invention.
- Figure 2 schematically represents an example of a heat pump that can be used in the thermal system of Figure 1.
- Figure 3 schematically represents an example of a power supply system that can be used in the thermal system of Figure 1.
- the invention relates to a thermal system 100 intended to be electrically connected to an external electrical power source 200, said thermal system 100 comprising a heat pump 10, and an electrical power supply system 30.
- the invention also relates to a method for controlling such a thermal system 100.
- the thermal system 100 is included in an electrical installation 300.
- Said electrical installation 300 may in particular correspond to the general electrical installation 300 of a dwelling in which the thermal system 100 is installed.
- the electrical installation 300 mentioned here comprises not only the claimed thermal system 100 but also all other appliances in the dwelling.
- the heat pump 10 comprises at least a first compressor 51 capable of compressing a refrigerant fluid when it is powered by an electric current continuously, and at least a second compressor 50 capable of compressing the refrigerant when it is powered by an alternating electric current.
- FIG. 1 An example of a heat pump 10 that can be used in the thermal system 100 is shown in detail in Figure 2.
- the heat pump 10 generally comprises at least four main components: an evaporator 26, the compressors 50 and 51, a condenser 60 and an expander 70. These five components are in fluid connection via a refrigerant circuit 80 in which the refrigerant circulates.
- the refrigerant can be in the liquid or gaseous state, in particular depending on the temperature and pressure conditions.
- the refrigerant is in the following states: in the gaseous state and at low pressure between the evaporator 26 and the compressors 50, 51; in the gaseous state and at high pressure between the compressors 50, 51 and the condenser 60; in the liquid state and at high pressure between the condenser 60 and the expander 70; in the liquid state and at low pressure between the expansion valve 70 and the evaporator 26.
- Each component of the heat pump 10 is therefore responsible for the thermodynamic changes of the refrigerant at each stage, the refrigerant being able to circulate in one direction or the other in the refrigerant circuit 80.
- the evaporator 26 is a heat exchanger allowing heat exchange between the refrigerant of the refrigerant circuit 80 and a fluid 22 of a heat source of the cold source type denoted “SF”.
- the evaporator 26 makes it possible to capture calories denoted “Qf” from the fluid 22 of the cold source SF in order to transfer them to the refrigerant.
- the condenser 60 is a heat exchanger allowing heat exchange between the refrigerant of the refrigerant circuit 80 and a fluid 90 of a heat source of the hot source type denoted “SC”.
- the condenser 60 makes it possible to capture calories denoted “Qh” from the refrigerant and transfer them to the fluid 90 of the hot source SC.
- the fluid 22, 90 of each heat source is air or water.
- the calories Of captured from the fluid 22 on the side of the cold source SF are used to cool the fluid 22.
- the calories Q.h transmitted to the fluid 90 on the side of the hot source SC are used to heat the fluid 90.
- the regulator 70 makes it possible to reduce the pressure of the refrigerant and the compressors 50, 51 have the role of increasing the pressure of the refrigerant.
- the heat pump 10 may include: at least a first valve 52 disposed between the evaporator 26 and the second compressor 50, and configured to allow the circulation of the refrigerant between the evaporator 26 and the second compressor 50 in an open position, or alternatively to prevent the passage of refrigerant between the evaporator 26 and the second compressor 50 in a closed position; at least one second valve 53 arranged between the evaporator 26 and the first compressor 51, and configured to allow the circulation of the refrigerant fluid between the evaporator 26 and the first compressor 51 in an open position, or alternatively to prevent the passage refrigerant between the evaporator 26 and the first compressor 51 in a closed position; at least one third valve 54 arranged between the second compressor 50 and the condenser 60, and configured to allow the circulation of the refrigerant between the second compressor 50 and the condenser 60 in an open position, or alternatively to prevent the passage of fluid refrigerant between the second compressor 50 and the condenser 60 in
- the external electrical power source 200 comprises at least one direct current source 204 generating a direct current and chosen from the set comprising at least one photovoltaic panel, one fuel cell, one supercapacitor, one battery based on an assembly of electrochemical cells.
- the power supply system 30 may include a plurality of electronic components interposed between the external power supply source 200 and the first compressor 51 and the second compressor 50.
- the electrical power supply system 30 notably comprises an electrical energy storage device 12.
- the electrical energy storage device 12 may comprise at least one element chosen from the group comprising an electric battery based on electrochemical cells, a power capacitor and a system comprising a fuel cell, an electrolyser and a gas.
- the heat pump 10 and the electrical energy storage device 12 can be powered by the external electrical power source 200, and the heat pump 10 can be powered by the electrical energy storage device 12 and/or by the external electrical power source 200.
- one of said electronic components of the electrical power supply system 30 comprises a voltage step-down step-up 34 comprising a first input connected to the electrical energy storage device 12, and an output connected to the first compressor 51.
- buck-boost 34 may include a second input connected to DC source 204.
- the electrical power supply system 30 may comprise an inverter 36 comprising a first input connected to the electrical energy storage device 12 and an output connected to the second compressor 50, so that the inverter 36 transforms the DC voltage supplied by the electrical energy storage device 12 into an AC input voltage suitable for the second compressor 50.
- the inverter 36 may include a second input connected to the direct current source 204 to transform the direct current voltage of the current source direct current 204 into an alternating voltage.
- the electrical energy storage device 12 is configured to inject electrical energy into the external electrical network 202 via the inverter 36.
- the electrical power supply system 30 comprises a rectifier 32 interposed between the external electrical network 202 on the one hand, and the first compressor 51 and the electrical energy storage device 12 on the other.
- the rectifier 32 is configured to transform the alternating voltage of the external electrical network 202 into a direct voltage adapted to the electrical supply of the electrical energy storage device 12 and/or to the electrical supply of the first compressor 51.
- a step-down step-up voltage 34 can be interposed between the rectifier 32 and the first compressor 51 or between the rectifier 32 and the electrical energy storage device 12.
- the rectifier 32 makes it possible to transform the DC output voltage of the rectifier 32 into a DC input voltage suitable for the first compressor 51.
- the rectifier 32 is configured to transform the AC voltage of the external electrical network 202 into a DC voltage suitable for the electrical supply of the electrical energy storage device 12.
- the thermal system 100 can be supplied with electrical energy by adapting to the type of electrical energy source available to adapt to fluctuations in the electrical energy supply by the external electrical power source 200.
- the first compressor 51 can be supplied with continuous electrical energy when it is available.
- the electrical energy storage device 12 can be used to supply the first compressor 51, so as to limit the high power calls on the electrical power source. external 200.
- Figure 1 illustrates how the heat pump 10 and the electrical supply system 30 are integrated into the electrical installation 300.
- the thermal system 100 comprises a control unit 14 configured to place the thermal system 100 in at least one of the following four operating modes:
- the thermal system 100 is in particular capable of occupying, at least at a given instant, at least one of said four operating modes.
- the control unit 14 can place the thermal system 100 in the first mode of operation and in the second mode of operation at the same time.
- the control unit 14 can place the thermal system 100 in the second mode of operation and in the third mode of operation at the same time.
- control unit 14 can be configured to place the thermal system 100 in a fifth operating mode in which the first compressor 51 is powered by the external electrical network 202 via the rectifier 32.
- control unit 14 can be configured to place the system 100 in a sixth mode of operation in which the first compressor 51 is powered by the direct current source 204 and/or by the electrical energy storage device 12 via the step-down-boost voltage 34.
- the control unit 14 can be configured to place the thermal system 100 in a seventh mode of operation in which the second compressor 50 can be powered by the direct current source 204 and/or the electrical energy storage device 12, via the inverter 36.
- the control unit 14 is configured to place the thermal system 100 in at least one of the seven operating modes previously described according to a predetermined strategy algorithm, recorded in a memory 42 of the control unit 14.
- the strategy algorithm is configured to optimize the energy consumption, for example when the electrical energy of the external electrical power source 200 is the most available.
- the strategy algorithm can be configured to place the thermal system 100 as a priority in the second operating mode when a cost of supplying electrical energy for the heat pump 10 by the external electrical power source 200 is less than a cost of supplying electrical energy for the heat pump 10 by the electrical energy storage device 12.
- the strategy algorithm can be configured to place the thermal system 100 as a priority in the first mode of operation when a cost of supplying electrical energy for the heat pump 10 by the external electrical power source 200 is greater than a cost of supplying electrical energy for the heat pump 10 by the electrical energy storage device 12.
- the strategy algorithm is configured to minimize the cost of the electricity subscription.
- the thermal system 100 can comprise a communication module 16 configured to communicate with a management server 38 placed remotely and/or a first measuring device 201 configured to measure and to communicate to the control unit 14 a quantity of electrical energy delivered by the external electrical power source 200 to the electrical installation 300 including the thermal system 100, the control unit 14 being configured to place the thermal system 100 in at least one of the seven operating modes, taking into account the quantity of electrical energy measured by the first measuring device 201.
- the amount of electric energy is an amount of electric energy per unit time, i.e. an electric power.
- the first measuring device 201 can comprise a counter known under the name “Linky” from the company ERDF or any other type smart meter, or “smartmeter” according to the appropriate Anglo-Saxon terminology.
- control unit 14 is configured to place the thermal system 100 in the second operating mode when the quantity of electrical energy delivered to the electrical installation 300 by the external electrical power source 200 is lower than a predetermined value.
- the predetermined value can be substantially equal to the quantity of electrical energy delivered corresponding to the maximum power subscribed for the electrical installation 300.
- control unit 14 is configured to place the thermal system 100 in the first mode of operation when the quantity of electrical energy delivered to the electrical installation 300 by the external electrical power source 200 is greater than a predetermined threshold.
- the predetermined threshold may be substantially equal to the quantity of electrical energy delivered corresponding to the maximum power subscribed for the supply of electrical energy by the network. external electrical 202.
- the thermal system 100 can be placed in at least the one of the seven operating modes described above, depending on the data from the first measuring device 201 or depending on commands received from the management server 38 placed remotely.
- the thermal system 100 makes it possible to improve the continuity of service, in particular when the electrical distribution network 202 needs the highly consuming components to be erased, for example during periods of high consumption, for example in winter to heat generation, or in summer for cold generation.
- the thermal system 100 comprises an element 40 for determining a state of charge of the electrical energy storage device 12.
- the control unit 14 is configured to place the thermal system 100 in one at least of the seven operating modes taking into account the state of charge of the electrical energy storage device 12.
- the thermal system 100 comprises a second measuring device 18 configured to measure and to communicate to the control unit 14 an amount of electrical energy delivered to the heat pump 10 by the electrical energy storage device 12, and a first temperature measurement module 28 configured to measure and communicate to the unit for controlling 14 a temperature of the electrical energy storage device 12, and in which the control unit 14 is configured to control the quantity of energy delivered by the electrical energy storage device 12 and measured by the second member measurement 18 as a function of the temperature of the electrical energy storage device 12 measured by the first temperature measurement module 28, in particular so as to maintain the temperature of the electrical energy storage device 12 at a temperature corresponding to a maximum efficiency of the electrical energy storage device 12.
- the efficiency of the electrical energy storage device 12 is optimized. Furthermore, and synergistically, the arrangements previously described make it possible to increase the service life of the electrical energy storage device 12.
- the thermal system 100 comprises a third measurement device 20 configured to measure and to communicate to the control unit 14 a quantity of total electrical energy consumed by the heat pump 10 and a second measurement module 24 configured to measure and communicate to the control unit 14 a temperature of a fluid of a heat source with which an evaporator 26 of the heat pump 10 is in a heat exchange situation, and in which the control unit 14 is configured to place the thermal system 100 in at least one of the first and second operating modes, taking into account the quantity of electrical energy measured by the third measuring device 20 and the quantity of electrical energy measured by the second measuring device 18 in a way ensuring a modulation of the ratio between the quantity of electrical energy delivered to the heat pump 10 by the energy storage device 12 and the total quantity of electrical energy consumed by the heat pump 10 as a function of the temperature of the fluid measured by the second temperature measurement module 24.
- the electrical energy storage device 12 is configured to be able to be in a heat exchange situation with the fluid 22 of the heat source with which the evaporator 26 of the heat pump 10 is in heat exchange situation (that is to say the cold source SF), allowing at least part of a residual heat generated by the electrical energy storage device 12 to preheat this fluid 22 when its temperature measured by the second temperature measurement module 24 is below a predetermined temperature threshold.
- the predetermined temperature threshold is between -5 degrees Celsius and +5 degrees Celsius, preferably between -2 degrees Celsius and +2 degrees Celsius, preferably equal to 0 degrees Celsius.
- the operational coefficient of performance of the heat pump 10 is improved.
- the invention also relates to a method for controlling a thermal system 100, of the type described above and implemented by the control unit 14.
- the method includes in particular:
- step consisting in placing the thermal system 100 in a third mode of operation in which the electrical energy storage device 12 is supplied with electrical energy by the external electrical power source 200,
- step consisting in placing the thermal system 100 in a fourth mode of operation in which the electrical energy storage device 12 injects electrical energy into the external electrical network 202,
- the communication module 16 communicates with a first measuring device 201 configured to measure and to communicate to the control unit 14 a quantity of electrical energy delivered by the external electrical power source 200 to an installation electric 300 including thermal system 100.
- the control unit 14 places the thermal system 100 in the first mode of operation when the quantity of electrical energy measured by the first measuring device 201 and delivered to the electrical installation 300 is greater than a predetermined threshold.
- the threshold is in particular predetermined as a function of a subscribed power for the supply of electrical energy by the electrical distribution network.
- the system 100 makes it possible to improve the continuity of the service, in particular when the external electrical network 202 needs the highly consuming components to be erased, for example during periods of high consumption, for example in winter and in summer. .
- the control method comprises a step in which a second measuring device 18 measures and communicates to the control unit 14 a quantity of electrical energy delivered to the heat pump 10 by the heat storage device.
- electrical energy 12 a step in which the first temperature measurement module 28 measures and communicates to the control unit 14 a temperature of the electrical energy storage device 12
- the control unit 14 controls the quantity of energy delivered by the electrical energy storage device 12 and measured by the second measuring device 18 as a function of the temperature of the electrical energy storage device 12 measured by the first temperature measurement module 28 , in particular so as to maintain the temperature of the electrical energy storage device 12 at a temperature corresponding to maximum efficiency of the electrical energy storage device 12.
- the efficiency of the electrical energy storage device 12 is optimized.
- the control method comprises a step in which the control unit 14 places the thermal system 100 in a fourth mode of operation for which the electrical energy storage device 12 transmits electrical energy to the external electrical power source 200 via the inverter 36, when the state of charge of the electrical energy storage device 12 determined by the element for determining a state of charge 40 is greater than a given state of charge threshold.
- the thermal system 100 makes it possible to transmit to the external electrical network 202 a certain quantity of electrical energy previously stored in the electrical energy storage device 12.
- the control method comprises a step in which the control unit 14 places the thermal system 100 in the first operating mode and/or in the second operating mode taking into account the quantity of electrical energy measured by the third measuring device 20 and the quantity of electrical energy measured by the second measuring device 18 in a way ensuring modulation of the ratio between the quantity of electrical energy delivered to the heat pump 10 by the electrical energy storage device 12 and the total amount of electrical energy consumed by the heat pump 10 as a function of the temperature of the fluid measured by the second temperature measurement module 24.
- control method comprises the following steps:
- the cost of supplying electrical energy is optimized.
- the control method comprises: a step consisting in placing the at least one first valve 52 and the at least one third valve 54 in the closed position, and in placing the at least one second valve 53 and the at least one fourth valve 55 in the open position when the thermal system 100 is placed in the first mode of operation; and a step of placing the at least one second valve 53 and the at least one fourth valve 55 in the closed position, and placing the at least one first valve 52 and the at least one third valve 54 in the open position when the thermal system 100 is placed in the second operating mode.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2012646A FR3117195B1 (fr) | 2020-12-03 | 2020-12-03 | Système thermique incluant une pompe à chaleur comprenant deux types de compresseur |
| PCT/FR2021/052175 WO2022117959A1 (fr) | 2020-12-03 | 2021-12-02 | Système thermique incluant une pompe à chaleur comprenant deux types de compresseur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4256245A1 true EP4256245A1 (fr) | 2023-10-11 |
Family
ID=74206070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21845086.4A Withdrawn EP4256245A1 (fr) | 2020-12-03 | 2021-12-02 | Système thermique incluant une pompe à chaleur comprenant deux types de compresseur |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4256245A1 (fr) |
| FR (1) | FR3117195B1 (fr) |
| WO (1) | WO2022117959A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458005B (zh) * | 2009-01-15 | 2010-09-01 | 北京航空航天大学 | 太阳能光伏-市电混合驱动蓄冷蓄热型热泵机组 |
| WO2012004985A1 (fr) * | 2010-07-07 | 2012-01-12 | パナソニック株式会社 | Système d'alimentation en eau chaude du type à réservoir d'eau chaude et procédé d'exploitation de celui-ci |
| CN110006124A (zh) * | 2019-05-13 | 2019-07-12 | 宁波奥克斯电气股份有限公司 | 一种太阳能辅助供暖,制冷,供热水三联供热泵系统 |
-
2020
- 2020-12-03 FR FR2012646A patent/FR3117195B1/fr active Active
-
2021
- 2021-12-02 EP EP21845086.4A patent/EP4256245A1/fr not_active Withdrawn
- 2021-12-02 WO PCT/FR2021/052175 patent/WO2022117959A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3117195B1 (fr) | 2023-02-24 |
| FR3117195A1 (fr) | 2022-06-10 |
| WO2022117959A1 (fr) | 2022-06-09 |
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