JP6751797B1 - Power control system and power control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power control system or the like suitable for providing various services in connection with power supply. A power control system 1 includes a control unit 11 and control load units 37 and 43 used by consumers. The control load units 37 and 43 are devices that provide, for example, a hot water supply service. The control unit 11 operates the control load units 37 and 43 to perform boiling control. The consumer operates the control load units 37 and 43 to use hot water. The control unit 11 uses the time zone of the midnight electricity charge to boil at night. In addition, when increasing the adjustment amount for grid stabilization processing during the daytime when renewable energy power generation increases, the amount of nighttime boiling is reduced to shift the power consumption, and the daytime boiling is performed to consume power. To increase the amount of adjustment. [Selection diagram] Fig. 1

Description

The present invention relates to a power control system and a power control method.

Electricity has been implicitly assumed to be supplied and demanded by different organizations. The power supply is managed by the power company. On the other hand, power consumption is carried out by an organization other than the power company. For example, in the case of a home, Patent Document 1 describes that power generation in the home is handled in the home so as not to affect the grid. Further, for example, Patent Document 2 describes that a water heater is combined with daytime boiling control and nighttime boiling control according to an electric power contract or the like.

Japanese Unexamined Patent Publication No. 2017-20280 Japanese Unexamined Patent Publication No. 2018-24819

However, in recent years, for example, power generation using renewable energy (for example, solar power, wind power, and other non-fossil energy sources that are recognized as being permanently usable as an energy source) (hereinafter, "renewable energy") Power supply that cannot be controlled by electric power companies is increasing, as in the case of "power generation"). Electric power companies are required to control the power supply precisely in consideration of various factors including renewable energy power generation and to provide more diverse services.

Therefore, an object of the present invention is to provide a power control system or the like suitable for providing various services in connection with power supply.

The first aspect of the present invention is a power control system, wherein the power control system includes a control unit and a load unit used by a consumer, and the control unit is an electric energy used in the load unit. And increase the amount of power supplied to the system.

The second aspect of the present invention is the power control system of the first aspect, wherein the control unit increases the amount of increased power to be used in the load unit and uses a part or all of the increased amount of power. Increase the amount of electricity generated using energy different from renewable energy.

The third aspect of the present invention is the power control system according to the first or second aspect, in which the control unit performs system stabilization processing and increases the amount of electric power used in the load unit. At the same time, the amount of adjustment power that the control unit can use for the system stabilization process is increased.

A fourth aspect of the present invention is a power control system according to any one of the first to third aspects, wherein the load unit uses a reference electric energy in the first time zone, and the control unit. If the power supply in the second time zone, which is a time zone different from the first time zone, satisfies the shift condition, instead of using the reference electric energy for the load unit in the first time zone. Therefore, a power amount smaller than the reference power amount is used, and in the second time zone, the increased power amount is used in the load unit, and a part or all of the increased power amount is used for the power supply to the system. To increase.

The fifth aspect of the present invention is the power control system of the fourth aspect, in which the load unit can store heat and / or cool, and the consumer operates the load unit to provide the load unit. The heat storage and / or the stored thermal energy can be used in the reference time zone including the first time zone and the second time zone, and the control unit can be used in the load unit if the shift condition is satisfied. On the other hand, instead of storing and / or storing the heat energy used in the reference time zone in the first time zone, a part or all of the heat energy used in the reference time zone in the second time zone is stored and / or Try to store cold.

A sixth aspect of the present invention is a power control system according to a fourth or fifth aspect, wherein the power control system includes a cost control load unit used by a consumer, and the control unit is the cost control unit. Even if the shift condition is satisfied for the load unit, if the electricity charge of the consumer in the first time zone is lower than the electricity charge in the second time zone, the reference electric energy in the first time zone To use.

The seventh aspect of the present invention is the power control system according to any one of the first to sixth aspects, and the control unit is supplied to the system in addition to the regulated electric energy used for the system stabilization process. When the electric energy is reduced, the electric energy used in the load unit is reduced for a part or all of the reduced amount.

An eighth aspect of the present invention is a power control system, which includes a control unit, a load unit used by a consumer, and a cost control load unit used by the consumer. And the cost control load unit uses the reference power amount in the first time zone, and the cost control load part is a consumer metered amount for a part or all of the power used by the cost control load part. If the power supply in the second time zone satisfies the shift condition, the control unit pays for the load unit, and instead of using the reference power amount in the first time zone, the second time zone is used. A part of the reference power amount is used in the time zone, and even if the shift condition is satisfied for the cost management load unit, the electricity charge in the first time zone is higher than the electricity charge in the second time zone. If it is also low, keep using the reference power amount in the first time zone.

The ninth aspect of the present invention is a power control method, in which the control unit increases the amount of increased power to be used in the load unit used by the consumer, and at the same time, the system is used for a part or all of the increased power. Includes steps to increase the amount of power supplied.

According to the present invention, an electric power company or the like can adjust the electric power demand to facilitate the adjustment of the electric power supply and the like. In particular, it was important to supply a homogeneous power supply. On the other hand, the load unit is used by consumers and can provide various services using electric power. According to the invention of the present application, an electric power company or the like can provide a service suitable for an individual consumer as well as a service premised on the public trust of power supply.

It is a block diagram which shows an example of the structure of the electric power control system which concerns on embodiment of this invention. It is a flow chart which shows an example of the operation of the power control system 1 of FIG. It is a figure for demonstrating concretely an example of simultaneous equal amount control by the power control system 1 of FIG. It is a figure for demonstrating concretely about the boiling control by the power control system 1 of FIG. It is a figure for demonstrating concretely another example of simultaneous equal amount control by the power control system 1 of FIG.

Hereinafter, examples of the present invention will be described with reference to the drawings. The embodiment of the present invention is not limited to the following examples.

FIG. 1 is a block diagram showing an example of a configuration of a power control system according to an embodiment of the present invention. An example of the configuration of the power control system 1 will be described with reference to FIG.

Traditionally, it has been implicitly assumed that power supply and power consumption are performed by different organizations. For example, Patent Document 1 is for not affecting the electric power generated by renewable energy power generation in a home or the like on the grid. Patent Document 2 controls boiling up independently of the system depending on the circumstances within the organization. These technologies can be applied to ancillary services by electric power companies (services that maintain the quality of supplied power. System stabilization operations such as frequency control and supply-demand balance adjustment (tide adjustment, voltage adjustment, etc.)). Can not.

The adoption of the premise that power supply and power consumption are realized by separate organizations can be explained, for example, from the viewpoint of simultaneous equal amount control. Electricity is generated and consumed at the same time. Therefore, electric power companies (particularly general power transmission and distribution business operators) need to adjust the amount of electric power supplied according to the ever-changing electric power demand (electric power consumption) (simultaneous equal amount control). .. Power companies have adjusted their power supply to keep up with power demand in order to achieve the same amount of control at the same time. From this point of view, the power company does not need to control the power demand. An electric power company would increase the electric power supply if the electric power demand was increased, and would only decrease the electric power supply if the electric power demand was decreased.

According to such a conventional way of thinking, for an electric power company, further increasing the electric power demand at a time when the electric power demand peaks only increases the amount of finite and costly adjustment power used. It was not considered desirable. As an exception, the drop in electricity demand at midnight has created the problem that it is necessary to reduce the amount of power generated by power generation facilities that are difficult to adjust, such as nuclear power generation. For this reason, electric power companies have introduced late-night charges and other measures to promote power consumption during midnight hours and to suppress daytime power peaks.

In recent years, various power generation companies have been supplying electric power. In particular, the power supply from renewable energy power generation is increasing, and the proportion of renewable energy power generation in the power supply is increasing. Electric power companies have realized the same amount of control at the same time by using the adjusting power, considering the power supply by renewable energy power generation in addition to the power demand.

In such a situation, if the daytime power demand becomes small due to the introduction of midnight power, the supply and demand will become tight during the time when renewable energy power generation such as solar power generation increases, and the adjustment amount of the power company will become small. .. As a result, a new problem arises in which control in consideration of photovoltaic power generation, which changes significantly in a short time, becomes difficult.

The power control system 1 includes a grid stabilization division 3. The grid stabilization business unit 3 includes a control unit 11 (an example of the “control unit” in the claims of the present application), a regulated power generation unit 13, a prediction unit 15, and a power storage unit 17.

The control unit 11 implements ancillary services in the area 5 (supply area). The prediction unit 15 predicts the power supply and the power demand in the region 5. The regulated power generation unit 13 is a power generation facility capable of rapidly adjusting the output, and usually has a high power generation cost. Coordinating power is the capacity of power companies, such as power generation facilities, required to provide ancillary services in the service area. When there is a surplus in the power supply with respect to the power demand, the power storage unit 17 stores the surplus. The adjustment amount (an example of the "electric power supplied to the grid" and an example of the "adjusted electric energy" in the claims of the present application) is determined by the control unit 11 using the adjustment force secured by the electric power company. , The amount of electric power that can be used to provide ancillary services in region 5.

In region 5, there are a power supply division 21, a renewable energy power generation division 22, and contract unit units 23, 25, 27, and 29.

The electric power supply division 21 and the renewable energy power generation division 22 supply electric power (an example of "electric power supplied to the grid" in the claim of the present application) to the region 5. The electric power supply division 21 includes a supply power generation division 31 that supplies electric power generated by nuclear power generation or the like. The renewable energy power generation division 22 includes a renewable energy power generation division 32 that supplies electric power generated by the renewable energy power generation.

The contract unit units 23, 25, 27 and 29 are in units of electricity usage contracts, such as family units. Currently, the contract unit units 23, 25, 27 and 29 come in various forms. It should be noted that, for example, an apartment house may be common to a plurality of families separately from the family unit.

The contract unit unit 23 includes a consumer load unit 33 and a renewable energy power generation unit 35. The consumer load unit 33 includes a control load unit 37 (an example of the “load unit” in the claims of the present application) and a general load unit 39. The contract unit unit 25 includes a consumer load unit 41. The consumer load unit 41 includes a control load unit 43 (an example of the “load unit” in the claims of the present application) and a general load unit 45.

The consumer load units 33 and 41 are devices operated and used by the consumer. The general load units 39 and 45 are devices that are operated by the consumer to control power consumption. The control load units 37 and 43 are devices that are operated and used by the consumer, but can be controlled by the control unit 11 to consume electric power. First, a case where the control unit 11 controls the control load unit 37 and the control load unit 43 in the same manner will be described.

In the following, it is assumed that the control load units 37 and 43 are hot water supply units controlled by the control unit 11 to boil hot water and operated by the consumer to use the hot water. The hot water supply unit can have different time zones for boiling water using electric power and for consumers to use it.

The load unit of the present invention may be such that the time zone in which electric power is used and the time zone in which consumers use it can be different. For example, it may store heat and / or cool, such as an air conditioner.

Conventionally, the electric power used in the consumer load unit used by the consumer has been controlled by the consumer because, in principle, the consumer bears the electric power by pay-as-you-go billing. Electric power companies disperse the peak of daytime electricity usage by introducing late-night electricity charges, etc., and inducing consumers to boil water and use it in the daytime during the low-night hours. I came. Therefore, for example, as described in Patent Document 2, the daytime boiling control and the nighttime boiling control have been combined in consideration of only the circumstances such as home.

The contract unit unit 27 includes a consumer load unit 47 and a renewable energy power generation unit 49. The consumer load unit 47 includes a general load unit 51. The contract unit unit 29 includes a consumer load unit 53. The consumer load unit 53 includes a general load unit 55.

In the contract unit units 27 and 29, the control unit 11 does not control the power consumption as in the conventional case. That is, the consumer load units 47 and 53 do not have a control load unit controlled by the control unit 11, and include general load units 51 and 55 that are operated by the consumer to control power consumption, respectively.

The renewable energy power generation units 35 and 49 generate renewable energy. The generated power is consumed or sold in the contract unit.

FIG. 2 is a flow chart showing an example of the operation of the power control system 1 of FIG. An example of the operation of the power control system 1 of FIG. 1 will be described with reference to FIG.

The prediction unit 15 predicts the power supply and the power demand in the region 5 in each of the plurality of time zones (step ST1). Multiple time zones, for example, divide the day into different charge time zones, divide it into hourly hours, or divide the day into hourly units (sleep time, from waking up to going out, from returning home to going to bed). It is divided into (up to, etc.). The control unit 11 determines whether or not there is surplus power (step ST2). If the power supply exceeds the power demand and there is surplus power, the control unit 11 limits the output to the renewable energy power generation unit 32 of the renewable energy power generation business unit 22 or applies the surplus power to the power storage unit 17. The amount of electric power supplied in the area 5 is suppressed (step ST3) by storing electricity, and the process proceeds to step ST4. If there is no surplus power, the process proceeds to step ST4.

The control unit 11 determines whether or not to perform daytime boiling in order to increase the adjustment amount (step ST4). If the daytime boiling is not performed, the prediction unit 15 predicts the daily usage of hot water (step ST5) and prepares the daily usage by boiling at night (step ST6). If daytime boiling is performed, the prediction unit 15 predicts the amount of hot water used in the morning (step ST7), and the control unit 11 prepares the amount of hot water used in the morning by boiling at night (step ST8). Subsequently, the prediction unit 15 predicts the amount of hot water used in the afternoon (step ST9), and the control unit 11 prepares the amount of hot water used in the afternoon by boiling in the daytime (step ST10).

An example of simultaneous equal amount control by the power control system 1 of FIG. 1 will be specifically described with reference to FIG.

As shown in FIG. 3A, in recent years, the proportion of renewable energy power generation and the like has increased in the power supply. In renewable energy power generation, for example, the daily power generation amount fluctuates greatly so that the solar power generation has a peak power generation amount in the daytime and is hardly generated at midnight. Furthermore, even in the short term, the natural environment fluctuates, and the amount of power generation fluctuates accordingly.

As described above, the simultaneous control of the same amount in recent years is performed for the difference between the power demand and the renewable energy power generation. That is, as shown in FIGS. 3 (b) and 3 (c), the adjustment amount is increased and decreased, respectively, in response to the increase and decrease of the electric power demand, as in the conventional case. Further, as shown in FIGS. 3 (d) and 3 (e), the adjustment amount is decreased and increased, respectively, in response to the increase and decrease of renewable energy power generation. In this way, electric power companies are required to make sophisticated and precise adjustments in consideration of large fluctuations in renewable energy power generation in addition to fluctuations in power demand. For electric power companies, securing a sufficient amount of adjustment during the time when renewable energy power generation is increasing has become a new issue.

In the past, securing the adjustment amount could be dealt with simply by preparing a new power generation facility with high responsiveness as an adjustment force in order to respond to the increase in power demand. However, in recent years, renewable energy power generation has increased, the difference between the power demand and the power supply by renewable energy power generation has become smaller, and the room for adjustment by electric power companies has become smaller, which has become a new problem. Such a problem is especially caused when the power demand decreases when the adjustment amount decreases in the time zone when the renewable energy power generation increases (the time zone in FIG. 3D) (FIG. 3C). When it occurs), it becomes noticeable because the adjustment amount is further reduced. In order to secure the adjustment amount, it was necessary to secure a sufficient difference between the power demand and the power supply by renewable energy power generation.

As shown in FIG. 3 (f), at present, surplus power is stored and not supplied to the system (see the power storage unit 17 in FIG. 1). However, given the rapid increase in renewable energy power generation, it is unclear whether sufficient power storage facilities can be secured in the future.

Further, as shown in FIG. 3 (g), the electric power company can legally and technically suppress the output of the renewable energy power generation company. However, output curtailment is psychologically unacceptable for renewable energy power generation companies and the like because their income is curtailed at the time of earning. Electric power companies are required to make efforts not to curb the output of renewable energy power generation companies.

According to the present invention, as shown in FIG. 3 (h), the electric power company includes a control load unit capable of controlling power consumption. As a result, as shown in FIG. 3 (i), the electric power company can increase the electric power demand at a specific time zone and secure the adjustment amount. The control unit 11 not only increases the power demand but also provides the consumer with a service using the power in the control load units 37 and 43. Therefore, the range of services that the electric power company can provide is expanded, and for example, subscription-type services can be provided.

If necessary, the electric power company will have no choice but to control the output. According to the present invention, the electric power company makes an effort to secure the adjustment amount by controlling the control load units 37 and 43 at its own risk. For renewable energy power generation companies that receive output control, it may be difficult to convince them from the bottom of their hearts, but as an electric power company, by requesting output control after making efforts as much as possible. It can fulfill a part of accountability to renewable energy power generation companies.

With reference to FIG. 4, the boiling control in the power control system 1 of FIG. 1 will be specifically described. The time zone of night boiling is an example of the "first time zone" of the claim of the present application, and the time zone of daytime boiling is an example of the "second time zone" of the claim of the present application, and one day (night boiling). The time from the start of the above to the start of the next night boiling) is an example of the "reference time zone" of the claim of the present application.

As shown in FIG. 4A, conventionally, hot water used in a day was boiled and used during the midnight electricity charge time zone.

As shown in FIG. 4B, the control unit 11 prepares hot water to be used in a day by boiling at night as in the conventional case, and in addition, performs daytime boiling to secure the adjustment amount. Is also possible. With such control, the electric power company can surely provide the consumer with hot water to be used in a day, and the consumer can receive the same service as boiling at night. However, since the hot water to be used in the afternoon is prepared twice, there is little room for securing the adjustment amount, and there is a high possibility that the hot water boiled in the daytime will be wasted. Power companies waste nighttime electricity with such controls.

As shown in FIG. 4C, the control unit 11 prepares hot water to be used in the morning for boiling at night when boiling in the daytime so that a sufficient amount of adjustment can be secured. It is desirable to prepare hot water to be used in the afternoon by boiling in the daytime. In a typical household, hot water consumption increases by taking a bath from evening to night. As shown in FIG. 4A, only by boiling at night, the elapsed time from boiling to the time when the consumption of hot water increases is large, and there is a high possibility that the heat energy radiated during that time will increase. By securing hot water to be used in the afternoon by boiling in the daytime, it is possible to prevent unnecessary heat energy from diverging. In addition, since the time from boiling to consumption is shortened, it is expected that the prediction accuracy of hot water consumption will be improved. Therefore, the total power consumption is expected to be reduced and maintained at worst.

Reducing the amount of hot water boiled at night as shown in FIG. 4 (c) has a risk of deteriorating the quality of hot water supply services. Therefore, the control of the control unit 11 is extremely important for the electric power company. That is, the control of the control load units 37 and 43 not only obtains the advantage in the power supply of securing the adjustment amount for the electric power company, but also bears the risk that it is evaluated by itself.

The control unit 11 may control the control load unit 37 and the control load unit 43 from an economical point of view. For example, the control load unit 37 (an example of the “cost control load unit” in the claims of the present application) shall be borne by the consumer by pay-as-you-go billing for a part or all of the electric power used. On the other hand, the control load unit 43 (an example of the “load unit” in the claims of the present application) does not allow the consumer to bear the power to be used by pay-as-you-go, for example, by paying a fixed amount. In this case, as described above, the control load unit 43 controls the electric power company to shift the electric power use as necessary. On the other hand, since the control load unit 37 is a pay-as-you-go charge, the control is performed in consideration of reducing the economic burden on the consumer when the power usage is shifted. For example, if the power usage shift of the control load unit 43 is sufficient, the charge of the power supplied to the system is not changed. On the other hand, if it is predicted that it will be difficult to respond only by shifting the power usage of the control load unit 43, the power charge for each time zone may be changed so that the daytime charge is lower than the midnight charge, for example. , Consumers who use the control load unit 37 by encouraging consumers who use the consumer load units 47 and 53 to use power in the daytime and shifting the power use to the control load unit 37. To get financial benefits. In this way, the control unit 11 may perform different control for each control load unit depending on the presence or absence of pay-as-you-go billing. Further, the control unit 11 may control the power usage in the control load unit in conjunction with the change of the power charge.

Further, the increase in the adjustment amount in the control unit 11 may be all or a part of the electric power consumed by the control load units 37 and 43. For example, the adjustment amount may be increased with respect to the amount of power consumed by the control load units 37 and 43. Further, for example, the adjustment amount may be increased for a part of the electric energy consumed by the control load units 37 and 43, and the range of output control for the renewable energy power generation company may be reduced for the other part.

Further, the control unit 11 may perform output control on the renewable energy power generation unit 32 in addition to causing the control load units 37 and 43 to consume power in the second time zone.

Further, if it is predicted that the adjustment amount is smaller than the adjustment reference value in the second time zone, the control unit 11 may cause the control load units 37 and 43 to consume power in the second time zone. .. The adjustment reference value may be determined in consideration of the power supply by renewable energy power generation or the like.

Further, with reference to FIG. 5, another example of simultaneous equal amount control by the power control system 1 of FIG. 1 will be specifically described.

As shown in FIG. 5A, an electric power company generally supplies electric power using a nuclear power plant, a hydroelectric power plant, a thermal power plant, or the like (hereinafter, referred to as “normal electric power supply”). The same amount of power is controlled at the same time by the power plant secured as the adjusting power.

Here, when a part of the power plant that normally supplies power is stopped (for example, when the hydroelectric power plant is stopped), the other normal power supply is increased as shown in FIG. 5 (b). , It is conceivable to control the same amount at the same time by further utilizing the adjusting power. However, the adjustment power has a high power generation cost, and it is not realistic to do this constantly. Therefore, as shown in FIG. 5C, the electric power is interchanged from other electric power companies.

As shown in FIG. 5D, according to the present invention, when the amount of power supplied by the power generation unit that normally supplies power is reduced, the amount of power consumed by the control load unit is reduced, thereby causing other power generation units. The amount of power interchanged from the power company may be reduced. However, renewable energy power generation has a large fluctuation in the amount of power generation, and it is desirable to adjust it by adjusting power. Therefore, in the present invention, when the amount of power supplied from the power generation facility excluding the renewable energy power generation and the adjusting power is reduced, the power usage in the control load unit may be reduced. In this way, the amount of electric power in the load unit may be controlled by paying attention to the cost of adjustment using the adjusting force.

1 Power control system, 3 System stability division, 5 Regions, 11 Control division, 13 Adjusted power generation division, 15 Prediction division, 21 Power supply division, 22 Renewable energy generation division, 23, 25, 27, 29 Contract unit division , 31 Supply power generation unit, 32,35,49 Renewable energy power generation unit, 33,41,47,53 Consumer unit unit, 37,43 Control load unit, 39,45,51,55 General load unit

Claims (8)

It ’s a power control system,
The power control system includes a control unit and a load unit used by consumers.
The amount of power generated using renewable energy in the first time zone is less than the amount of power generated using renewable energy in the second time zone.
When the control unit does not shift the power usage, the load unit uses the first reference amount in the first time zone.
When the control unit shifts power usage, the control unit may
In the first time zone, instead of using the first reference amount, the load unit is made to use a second reference amount smaller than the first reference amount.
In the second time zone, the control unit increases the amount of power used by the load unit from the third reference amount to the fourth reference amount, which is larger than the third reference amount, and what is renewable energy? A power control system that increases the amount of power generation using different energies from the first power generation amount to the second power generation amount that is larger than the first power generation amount. When the control unit does not shift the power usage and does not increase the amount of power generation using energy different from the renewable energy, the load unit sets the first reference amount in the first time zone and the second time. Use the 5th reference amount in the obi,
When the control unit does not shift the power usage and increases the amount of power generation using energy different from the renewable energy.
In the first time zone, the load unit uses the first reference amount,
In the second time zone, the control unit increases the amount of power used by the load unit to the sixth reference amount, which is larger than the fifth reference amount, and generates electricity using energy different from the renewable energy. , Increase from the 3rd power generation amount to the 4th power generation amount which is larger than the 3rd power generation amount.
When the control unit shifts power usage, the control unit may
In the first time zone, instead of using the first reference amount, the load unit is made to use a second reference amount smaller than the first reference amount.
In the second time zone, the control unit increases the amount of power used by the load unit to the fourth reference amount, and increases the amount of power generation using energy different from the renewable energy to the second power generation amount. Increased to
The first increased power generation amount obtained by subtracting the third power generation amount from the fourth power generation amount is a part or all of the first increase reference amount obtained by subtracting the fifth reference amount from the sixth reference amount.
The second increased power generation amount obtained by subtracting the first power generation amount from the second power generation amount is a part or all of the second increase reference amount obtained by subtracting the second reference amount from the fourth reference amount. 1. The power control system according to 1 . The control unit shifts the power usage if the electricity charge in the second time zone of the consumer who uses the load unit is lower than the electricity charge in the first time zone, according to claim 1 or 2 . Power control system. The load unit can store heat and / or cool.
The consumer can operate the load unit to use the heat energy stored and / or cooled in the load unit.
When the control unit does not shift the power usage, the load unit, the thermal energy which the consumer uses the end of the first hour between band next to the heat storage and / or cold storage in the first time period,
When the control unit shifts the power usage, the load unit stores heat energy and / or cools the heat energy used by the consumer by the second time zone in the first time zone, and then in the second time zone, the next The electric power control system according to any one of claims 1 to 3 , wherein the thermal energy used by the consumer is stored and / or cooled by the first time zone of the above. The claim that the control unit uses a part or all of the power generation amount using energy different from the renewable energy to be increased in the second time zone, which is the adjusted power amount that the control unit can use for the system stabilization process. The power control system according to any one of 1 to 4. When the control unit causes the load unit to use the electric energy of the first usage amount, a part of the power plant that generates power by using energy different from the renewable energy is stopped. When the amount of power generation using energy different from the renewable energy is reduced from the first supply amount to the second supply amount smaller than the first supply amount, the control unit is used in the load unit. The power control system according to any one of claims 1 to 5, wherein the amount of power is reduced from the first usage amount to a second usage amount less than the first usage amount. It is a power control method in a power control system.
The power control system includes a control unit and a load unit used by consumers.
The amount of power generated using renewable energy in the first time zone is less than the amount of power generated using renewable energy in the second time zone.
When the control unit does not shift the power usage, the load unit uses the first reference amount in the first time zone and the second reference amount in the second time zone.
When the control unit shifts power usage, the control unit may
In the first time zone, instead of using the first reference amount, the load unit is made to use a third reference amount smaller than the first reference amount.
In the second time zone, the control unit causes the load unit to use a fourth reference amount that is larger than the second reference amount, and generates a power generation amount that uses energy different from the renewable energy. A power control method including a step of increasing from one power generation amount to a second power generation amount larger than the first power generation amount. When the control unit causes the load unit to use the electric energy of the first usage amount, a part of the power plant that generates power by using energy different from the renewable energy is stopped. When the amount of power generation using energy different from the renewable energy is reduced from the first supply amount to the second supply amount smaller than the first supply amount, the control unit is used in the load unit. The power control method according to claim 7, wherein the amount of power is reduced from the first usage amount to a second usage amount smaller than the first usage amount.

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