CN107785932B - Energy real-time balance control system based on phase change heat storage and control method thereof - Google Patents
Energy real-time balance control system based on phase change heat storage and control method thereof Download PDFInfo
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- H02J3/386—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H02J3/383—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/388—Islanding, i.e. disconnection of local power supply from the network
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a phase-change heat storage-based energy real-time balance control system and a control method thereof, wherein the system comprises a computer processing unit, a load balance control unit, a high-pressure power regulating unit and a phase-change heat storage heat supply unit; the load balance control unit is used for being connected with a new energy microgrid on a power grid bus and the low-voltage side of a main power grid booster transformer; the load balance control unit is used for acquiring voltage and current information of the low-voltage side of the new energy micro-grid and the main power grid booster transformer on the bus in real time, calculating consumed power needing to be adjusted in real time, and calculating output voltage of the high-voltage power adjusting unit according to power values needing to be adjusted, so that the consumed power of the phase change heat storage heat supply unit is adjusted. The invention realizes the real-time energy balance control of the new energy micro-grid or the self-contained power generation system, reduces the fluctuation of power exchange with the main power grid, improves the reliability of safe and stable operation of the self system, and also reduces the influence of the system on the safe and stable operation of the main power grid.
Description
Technical Field
The invention relates to the field of energy real-time balance control of a new energy micro-grid or self-contained power system with power supply or load fluctuation, in particular to an energy real-time balance control system based on phase change heat storage.
Background
the wide application of new energy such as photovoltaic energy, wind power and the like is an important development direction of future energy technology, is an essential stage of sustainable development of human energy, and has the advantages of continuous regeneration, effective protection of the earth environment, benefit for human health and the like. As shown in fig. 1, which is a typical structural diagram of a system such as a current new energy microgrid or self-contained power, a 10kV bus is connected with a conventional generator set, photovoltaic power generation, wind power generation, an impact power load, a general power load and the like, the 10kV bus is connected to a superior power system or a main power grid through a step-up transformer, when the new energy power generation exceeds the power load demand, surplus power is transmitted to the main power grid, when the new energy power generation cannot meet the power load demand, the main power grid provides required power, and severe fluctuation of load caused by the impact power load is also subjected to a smoothing function by the main power grid. However, the new energy power generation is easily influenced by the environment, the generated power has great fluctuation, randomness and intermittence, and when the new energy power generation is connected to the main power grid in a large scale, the new energy power generation has great influence on the safe and stable operation of the main power grid. How to smooth the fluctuation of the output of the new energy system is a problem which needs to be solved urgently at present, and the system can provide single energy and can not meet various energy requirements of customers. Therefore, the flexibility and the stability of the system can be improved to a certain extent by adopting modes such as a micro-grid and a local area grid.
On the other hand, a large amount of fluctuating and impulsive loads such as a rolling mill, an arc furnace, a high-power motor start and the like exist in a plurality of industrial and commercial self-contained power systems, the loads of the systems can generate large-amplitude and frequent dense power fluctuation, the large-capacity impulsive and fluctuating loads can influence the safe and stable operation of the self-contained power system with a weak grid structure, and can also have adverse effects on a main power grid interconnected with the self-contained power system. At present, the problem of fluctuation of a power supply or a load is solved by mostly adopting a battery energy storage technology or a high-voltage electrode boiler, but the defects of high investment cost, power fluctuation stabilizing capability lack, large occupied area, potential safety hazard, short service life and the like exist. In order to solve the adverse effect of power supply or load fluctuation on the system, the energy supply mode and the energy real-time balance control need to be coordinately considered in the energy supply system.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides an energy real-time balance control system based on phase change heat storage, which solves the problem that new energy or load fluctuation has great influence on the safe and stable operation of a main power grid, and solves the problems of high investment cost, power fluctuation stabilizing capability lack, large occupied area, potential safety hazard and short service life of power supply or load fluctuation by adopting a battery energy storage technology or a high-voltage electrode boiler in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme: a real-time energy balance control system based on phase change heat storage is characterized by comprising a computer processing unit, a load balance control unit, a high-pressure power regulation unit and a phase change heat storage heat supply unit;
the load balance control unit is used for being connected with a new energy microgrid on a power grid bus and the low-voltage side of a main power grid booster transformer;
The load balance control unit is used for acquiring voltage and current information of the low-voltage side of the new energy micro-grid and the main power grid booster transformer on the bus in real time, calculating consumed power needing to be adjusted in real time, and calculating output voltage of the high-voltage power adjusting unit according to power values needing to be adjusted, so that the consumed power of the phase change heat storage heat supply unit is adjusted.
The energy real-time balance control system based on phase change heat storage is characterized in that: the new energy microgrid comprises new energy power generation, a conventional generator set and a power load.
the energy real-time balance control system based on phase change heat storage is characterized in that: the high-voltage power regulating unit comprises a controller connected with the load balance control unit and a thyristor connected with the controller; the controller receives thyristor trigger angle information sent by the load balance control unit, so that the output voltage of the thyristor is changed.
The energy real-time balance control system based on phase change heat storage is characterized in that: the phase change heat storage and supply unit comprises an electric heater, a heat storage box and a heat exchanger, heat energy generated by the electric heater is stored in the heat storage box, the heat storage box is connected with the heat exchanger, heat energy stored in the heat storage box is conveyed to a heat consumer or the heat exchanger is connected with a heating boiler of a conventional generator set through a pipeline in the heat exchanger, hot water in the heat exchanger is supplied to the heating boiler of the conventional generator set, and heat storage-power generation recycling is achieved.
the energy real-time balance control system based on phase change heat storage is characterized in that: the heat storage tank is made of a phase change material.
The energy real-time balance control system based on phase change heat storage is characterized in that: and the computer processing unit is used for monitoring the energy real-time balance control system, displaying the real-time information of the energy real-time balance control system, inquiring historical records, storing data and automatically reporting.
a real-time energy balance control method based on phase change heat storage is characterized by comprising the following steps: the method comprises the following steps:
1) The load balance control unit judges whether the new energy micro-grid and the main power grid are in grid-connected operation or whether the new energy micro-grid is separated from the main power grid and is in isolated network operation according to the position of a booster transformer low-voltage side circuit breaker and current information;
2) When the new energy microgrid and the main power grid are in grid-connected operation, the load balance control unit calculates the rapid adjustment power P in real time1：
Wherein m is the number of power generation equipment, n is the number of electric loads, i is 1-m, and j is 1-n; pGiis the output power instantaneous value P of the new energy micro-grid power generation equipment iLjAs instantaneous value of power of electrical load j, Peexchanging a power set value for the new energy microgrid and the main power grid;
Current fast regulation power P1Quickly adjusting power P from previous time1taking the absolute value of the difference Δ P1Comprises the following steps:
ΔP1＝|P1(k)–P1(k–1)| (2)
When Δ P1When the value is larger than the action threshold set value, the load balance control unit transfers to the step 3) to finish the rapid adjustment of the consumed power of the phase change heat storage unit, and k is a positive integer;
2) When the new energy micro-grid is separated from the isolated operation of the main grid, the load balance control unit calculates the fast adjusting power P in real time1And additional regulation of power P2；
real-time computation of fast regulation power P1Calculating according to the formula (1);
When Δ P1When the action threshold is larger than the set value, the load balance control unit carries out step 3) to finish the rapid adjustment of the consumed power of the phase change heat storage unit;
additional regulation of power P2the calculation method comprises the following steps:
According to the relation between the system frequency and the system power:
obtaining:
wherein f is a new energy microgrid frequency instantaneous value PLInstantaneous value of power consumption f for phase change heat storage and supply unit0Is a frequency nominal value, and M is a frequency modulation coefficient;
current additional regulation power P2Additionally adjusting power P with the previous time2Taking the absolute value of the difference Δ P2Comprises the following steps:
ΔP2＝|P2(k)–P2(k–1)| (5)
when Δ P2when the action threshold is larger than the set value, the load balance control unit transfers to the step 4) to delay and finish the additional adjustment of the consumed power of the phase change heat storage unit;
3) when Δ P1when the value is greater than the action threshold set value, the load balance control unit controls the load balance control unit according to P1Calculating the output voltage of the high-voltage power regulating unit according to the value of the voltage, thereby realizing the rapid regulation of the consumed power of the phase-change heat storage and supply unit;
4) when Δ P2When the value is greater than the action threshold set value, the load balance control unit controls the load balance control unit according to P2The output voltage of the high-voltage power regulating unit is calculated according to the value of the voltage, so that the consumed power of the phase-change heat storage and supply unit is additionally regulated.
the energy real-time balance control method based on phase change heat storage is characterized by comprising the following steps: and the control cycle of the consumed power of the rapid adjustment phase-change heat storage and supply unit is less than 20 ms.
The energy real-time balance control method based on phase change heat storage is characterized by comprising the following steps: and the control period of additionally adjusting the consumed power of the phase-change heat storage and supply unit is set in the load balance control unit, and the period is less than 100 ms.
the invention achieves the following beneficial effects:
1) The invention realizes the real-time energy balance control of the new energy micro-grid or the self-contained power generation system, thereby achieving the real-time energy balance of power generation and load under the conditions of volatility and intermittence, meeting the maximum power exchange constraint requirement of the new energy micro-grid or the self-contained power system and the main power grid, reducing the volatility of power exchange with the main power grid, improving the reliability of the safe and stable operation of the system per se and reducing the influence of the system on the safe and stable operation of the main power grid;
2) The system can be balanced in real time under the isolated network condition, and the safe and stable operation level of the isolated network system is improved.
3) the system has high reliability and good expandability, and can randomly adjust the power consumption of the phase-change electric heater according to the service condition and the change condition of the load, thereby realizing the long-term stable adjustment of 100 percent of the load.
Drawings
Fig. 1 is a schematic diagram of a typical structure of a system such as a new energy microgrid or self-contained power;
fig. 2 is a schematic diagram of a structure of a real-time energy balance control system.
Detailed Description
the invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and are not intended to limit the scope of the present invention.
as shown in fig. 2, a real-time energy balance control system based on phase-change heat storage includes a computer processing unit, a load balance control unit, a high-voltage power regulation unit, and a phase-change heat storage and supply unit, which are connected in sequence; the load balance control unit is connected with a new energy microgrid (namely all new energy power generation, a conventional generator set and power loads) on a power grid bus (10kV) and the low-voltage side of a main power grid booster transformer;
the high-voltage power regulating unit, also called a power regulator, comprises a controller connected with the load balance control unit and a thyristor (bidirectional thyristor rectifier element) connected with the controller; the controller receives thyristor trigger angle information sent by the load balance control unit through the optical fiber Ethernet, so that the output voltage of the thyristor is changed, namely the three-phase input voltage applied to the electric heater of the phase-change heat storage and supply unit is changed, and the power consumption of the electric heater of the phase-change heat storage and supply unit is adjusted within the range of 0-100%.
The phase-change heat storage and supply unit comprises an electric heater, a heat storage tank and a heat exchanger which are sequentially connected, the electric heater is used as power consumption equipment for load balance control, and the heat storage tank is made of phase-change materials; the heat energy generated by the electric heater is stored in the heat storage tank, the heat storage tank is connected with the heat exchanger, the hot water in the heat exchanger can convey the heat energy stored in the heat storage tank to a heat consumer through a pipeline, and the heat exchanger can also be connected with a heating boiler of a conventional generator set to supply the hot water in the heat exchanger to the heating boiler of the conventional generator set, so that the heat storage-power generation cycle recycling is realized.
The load balance control unit is used for acquiring voltage and current information of a new energy microgrid (all new energy power generation, a conventional generator set and an electrical load) on a 10kV bus and the low-voltage side of a main power grid booster transformer in real time, calculating power to be regulated in real time, and calculating the trigger angle of a thyristor of the high-voltage power regulation unit according to the power value to be regulated, so that the consumed power of the phase-change heat storage and supply unit is regulated;
And the computer processing unit is used for finishing the monitoring function of the energy real-time balance control system, displaying the running interface of the energy real-time balance control system and the real-time information of each device, inquiring historical records, storing data, automatically reporting and the like.
A control method of an energy real-time balance control system based on phase change heat storage comprises the following steps:
1) The load balance control unit judges whether the new energy micro-grid and the main power grid are in grid-connected operation or whether the new energy micro-grid is separated from the main power grid and is in isolated network operation according to the position of a booster transformer low-voltage side circuit breaker and current information;
2) when the new energy microgrid and the main power grid are in grid-connected operation, the load balance control unit calculates the rapid adjustment power P in real time1：
Wherein m is the number of power generation equipment, n is the number of electric loads, i is 1-m, and j is 1-n; pGiIs the output power instantaneous value P of the new energy micro-grid power generation equipment iLjAs instantaneous value of power of electrical load j, Peexchanging a power set value for the new energy microgrid and the main power grid;
Current fast regulation power P1Quickly adjusting power P from previous time1Taking the absolute value of the difference Δ P1comprises the following steps:
ΔP1＝|P1(k)–P1(k–1)| (2)
When Δ P1When the value is larger than the action threshold set value, the load balance control unit transfers to the step 3) to finish the rapid adjustment of the consumed power of the phase change heat storage unit, and k is a positive integer;
2) When the new energy micro-grid is separated from the isolated operation of the main grid, the load balance control unit calculates the fast adjusting power P in real time1and additional regulation of power P2；
real-time computation of fast regulation power P1Calculating according to the formula (1);
When Δ P1when the action threshold is larger than the set value, the load balance control unit carries out step 3) to finish the rapid adjustment of the consumed power of the phase change heat storage unit;
additional regulation of power P2The calculation method comprises the following steps:
According to the relation between the system frequency and the system power:
Obtaining:
Wherein f is a new energy microgrid frequency instantaneous value PLInstantaneous value of power consumption f for phase change heat storage and supply unit0is a frequency rate rating, M is a frequency modulation coefficient;
Current additional regulation power P2Additionally adjusting power P with the previous time2Taking the absolute value of the difference Δ P2Comprises the following steps:
ΔP2＝|P2(k)–P2(k–1)| (5)
When Δ P2When the action threshold is larger than the set value, the load balance control unit transfers to the step 4) to delay and finish the additional adjustment of the consumed power of the phase change heat storage unit;
3) When Δ P1When the value is greater than the action threshold set value, the load balance control unit controls the load balance control unit according to P1The trigger angle of the thyristor is calculated, and the trigger angle of the thyristor is controlled by sending the trigger angle to the high-voltage power regulating unit controller through the optical fiber Ethernet, so that the consumed power of the phase change heat storage and supply unit is quickly regulated, and the method can realize quick regulation within 20ms from the collection of voltage and current information to the regulation of the power of the phase change heat storage and supply unit;
4) when Δ P2when the value is greater than the action threshold set value, the load balance control unit controls the load balance control unit according to P2The trigger angle of the thyristor is calculated, and then the trigger angle of the thyristor is sent to the high-voltage power regulating unit controller through the optical fiber Ethernet so as to realize the additional regulation of the consumed power of the phase-change heat storage and supply unit; the control period of additionally adjusting the consumed power of the phase-change heat storage and supply unit is set in the load balance control unit, and the control period of additionally adjusting is less than 100 ms; the additional adjustment can effectively prevent the system frequency from exceeding the limit caused by comprehensive factors such as acquisition errors, temperature changes of electric heating materials, other system disturbances and the like during isolated network operation of the new energy microgrid, and the adjustment effect and the robustness of the isolated network system are enhanced.
The invention realizes the real-time energy balance control of the new energy micro-grid or the self-contained power generation system, thereby achieving the real-time energy balance of power generation and load under the conditions of volatility and intermittence, meeting the maximum power exchange constraint requirement of the new energy micro-grid or the self-contained power system and the main power grid, reducing the volatility of power exchange with the main power grid, improving the reliability of the safe and stable operation of the system per se and reducing the influence of the system on the safe and stable operation of the main power grid. The system can be balanced in real time under the isolated network condition, and the safe and stable operation level of the isolated network system is improved.
The system has high reliability and good expandability, and can randomly adjust the power consumption of the phase-change electric heater according to the service condition and the change condition of the load, thereby realizing the long-term stable adjustment of 100 percent of the load.
the above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. a real-time energy balance control system based on phase change heat storage is characterized by comprising a computer processing unit, a load balance control unit, a high-pressure power regulation unit and a phase change heat storage heat supply unit;
the load balance control unit is used for being connected with a new energy microgrid on a power grid bus and the low-voltage side of a main power grid booster transformer;
The load balance control unit is used for acquiring voltage and current information of the low-voltage side of the new energy microgrid and the main power grid booster transformer on the bus in real time, calculating consumed power needing to be adjusted in real time, and calculating output voltage of the high-voltage power adjusting unit according to a power value needing to be adjusted, so that the consumed power of the phase-change heat storage and supply unit is adjusted;
The load balance control unit judges whether the new energy micro-grid and the main power grid are in grid-connected operation or whether the new energy micro-grid is separated from the main power grid and is in isolated network operation according to the position of a booster transformer low-voltage side circuit breaker and current information;
when the new energy microgrid is connected with the main power grid in a grid operation mode, the load balance control unit calculates the fast adjusting power in real time; the difference between the current quick adjustment power and the previous quick adjustment power is an absolute value, and when the absolute value is larger than the action threshold set value, the load balance control unit calculates the output voltage of the high-voltage power adjustment unit according to the current quick adjustment power value, so that the consumed power of the phase change heat storage and supply unit is quickly adjusted;
when the new energy micro-grid is separated from the isolated operation of the main power grid, the load balance control unit calculates the fast adjusting power and the additional adjusting power in real time; the difference between the current quick adjustment power and the previous quick adjustment power is an absolute value, and when the absolute value is larger than the action threshold set value, the load balance control unit calculates the output voltage of the high-voltage power adjustment unit according to the current quick adjustment power value, so that the consumed power of the phase change heat storage and supply unit is quickly adjusted;
And when the absolute value of the difference between the current additional adjusting power and the previous additional adjusting power is larger than the action threshold set value, the load balance control unit calculates the output voltage of the high-voltage power adjusting unit according to the value of the current additional adjusting power, so that the consumed power of the phase change heat storage and supply unit is additionally adjusted.
2. The real-time energy balance control system based on phase change heat storage of claim 1, wherein: the new energy microgrid comprises a new energy generator set, a conventional generator set and an electric load.
3. The real-time energy balance control system based on phase change heat storage of claim 1, wherein: the high-voltage power regulating unit comprises a controller connected with the load balance control unit and a thyristor connected with the controller; the controller receives thyristor trigger angle information sent by the load balance control unit, so that the output voltage of the thyristor is changed.
4. The real-time energy balance control system based on phase change heat storage of claim 1, wherein: the phase change heat storage and supply unit comprises an electric heater, a heat storage box and a heat exchanger, heat energy generated by the electric heater is stored in the heat storage box, the heat storage box is connected with the heat exchanger, heat energy stored in the heat storage box is conveyed to a heat consumer or the heat exchanger is connected with a heating boiler of a conventional generator set through a pipeline in the heat exchanger, hot water in the heat exchanger is supplied to the heating boiler of the conventional generator set, and heat storage-power generation recycling is achieved.
5. The real-time energy balance control system based on phase change heat storage as claimed in claim 4, wherein: the heat storage tank is made of a phase change material.
6. the real-time energy balance control system based on phase change heat storage of claim 1, wherein: and the computer processing unit is used for monitoring the energy real-time balance control system, displaying the real-time information of the energy real-time balance control system, inquiring historical records, storing data and automatically reporting.
7. A real-time energy balance control method based on phase change heat storage is characterized by comprising the following steps: the method comprises the following steps:
1) The load balance control unit judges whether the new energy micro-grid and the main power grid are in grid-connected operation or whether the new energy micro-grid is separated from the main power grid and is in isolated network operation according to the position of a booster transformer low-voltage side circuit breaker and current information;
2) When the new energy microgrid and the main power grid are in grid-connected operation, the load balance control unit calculates the rapid adjustment power P in real time1：
Wherein m is the number of power generation equipment, n is the number of electrical loads, i is 1,2, …, m, j is 1,2, …, n; pGiis the output power instantaneous value, P, of the ith new energy micro-grid power generation deviceLjIs the instantaneous value of the power of the jth electrical load, PeExchanging a power set value for the new energy microgrid and the main power grid;
Current fast regulation power P1(k) Quickly adjusting power P from previous time1taking the absolute value DeltaP of the difference between (k-1)1Comprises the following steps:
△P1＝|P1(k)–P1(k–1)| (2)
When Δ P1When the value is larger than the action threshold set value, the load balance control unit transfers to the step 3) to finish the rapid adjustment of the consumed power of the phase change heat storage unit, and k is a positive integer;
When the new energy micro-grid is separated from the isolated operation of the main grid, the load balance control unit calculates the fast adjusting power P in real time1And additional regulation of power P2；
real-time computation of fast regulation power P1Calculating according to the formula (1);
When Δ P1when the action threshold is larger than the set value, the load balance control unit carries out step 3) to finish the rapid adjustment of the consumed power of the phase change heat storage unit;
additional regulation of power P2The calculation method comprises the following steps:
according to the relation between the system frequency and the system power:
Obtaining:
Wherein f is a new energy microgrid frequency instantaneous value PLInstantaneous value of power consumption f for phase change heat storage and supply unit0Is a frequency nominal value, and M is a frequency modulation coefficient;
Current additional regulation power P2(k) Additionally adjusting power P with the previous time2taking the absolute value DeltaP of the difference between (k-1)2Comprises the following steps:
△P2＝|P2(k)–P2(k–1)| (5)
When Δ P2When the action threshold is larger than the set value, the load balance control unit transfers to the step 4) to delay and finish the additional adjustment of the consumed power of the phase change heat storage unit;
3) When Δ P1when the value is greater than the action threshold set value, the load balance control unit controls the load balance control unit according to P1the output voltage of the high-voltage power regulating unit is calculated according to the value of the voltage, so that the power consumption of the phase-change heat storage and supply unit is quickly regulatedRate;
4) When Δ P2when the value is greater than the action threshold set value, the load balance control unit controls the load balance control unit according to P2The output voltage of the high-voltage power regulating unit is calculated according to the value of the voltage, so that the consumed power of the phase-change heat storage and supply unit is additionally regulated.
8. The real-time energy balance control method based on phase change heat storage as claimed in claim 7, wherein: and the control period of the consumed power of the phase-change heat storage and supply unit is quickly adjusted to be less than 20 ms.
9. The real-time energy balance control method based on phase change heat storage as claimed in claim 7, wherein: and additionally adjusting the power consumption control period of the phase-change heat storage and supply unit, wherein the period is set in the load balance control unit and is less than 100 ms.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711078678.1A CN107785932B (en) | 2017-11-06 | 2017-11-06 | Energy real-time balance control system based on phase change heat storage and control method thereof |
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