JP6118136B2 - Power supply adjustment device and power supply adjustment method - Google Patents

Description

  The present invention relates to an electric power supply adjustment device and an electric power supply adjustment method, and is suitable for application to an electric power supply adjustment device and an electric power supply adjustment method that secure a negative watt creation potential.

  In order to suppress the demand for electric power, a demand adjustment method such as an electricity rate plan or a demand response (DR) according to a time zone is known. As a specific method of demand adjustment, there is a technology in which an electric company (electricity company) asks a customer to reduce power consumption and pays the customer an incentive (referred to as a reward or rebate) for the amount of power reduction. (For example, Patent Document 1).

  In demand response, when the wholesale market price of electric power rises or when system reliability decreases, the electric power consumption pattern is changed so that the consumer temporarily suppresses the use of electric power by changing the electric charge or paying a reward. The ability to temporarily suppress the use of power and reduce power reception can be the target of buying and selling in the power market equivalent to power generation. In the power trading market such as the United States, negawatts generated by demand response are traded in the same way as the power generated at power plants.

  In recent years, there has been a trader called aggregator that gathers negawatts of small-scale customers and trades with power companies and grid operators. In the future, due to the expansion of power generation by renewable energy, there are concerns about unstable power supply and demand balance and increase in electricity price volatility. In that sense, the effective use of negawatts compiled by an aggregator is expected.

  Usually, an aggregator concludes a contract called a demand response program (hereinafter referred to as a DR program) with a consumer or another aggregator that bundles consumers in order to create negative watts. As the consumer completes the registration for participation in the DR program, the aggregator can use the facilities of the consumer as a resource for creating negative watts.

JP 2002-252924 A

  However, Negawatt is likely to be affected by climate and other factors, and human behavior that exists in the demand area, so it is thought that the certainty of creation is inferior compared to power generation by generators. When negawatts cannot be created due to power saving etc. in response to the demand for reduction of power consumption, there is a risk that the supply and transaction price stability in the power trading market may be hindered.

  The present invention has been made in consideration of the above points, and an attempt is made to propose a power supply adjustment device and a power supply adjustment method capable of efficiently supplying a shortage of negative wattage by combining various supply means. To do.

In order to solve such a problem, in the present invention, a power replenishment adjusting device that adjusts power replenishment by a generator of a consumer who uses power, and for a reduction in power consumption required by a power company When the amount of reduction applied by the consumer is insufficient, a shortage estimation unit for estimating the shortage occurrence time and the amount of shortage when power shortage occurs, and alternatives other than the means for reducing power applied by the consumer An alternative means storage unit that associates and stores the power information of the means and the alternative means in the alternative means table, and refers to the alternative means table, and can procure power corresponding to the shortage amount at the shortage occurrence time. as the alternative, in accordance with the progress of the disorder, insufficient actual supply amount to the application value of the customer before the reduction of reduced demand for the power from the power company is issued If it is determined that the alternative means is selected by giving priority to cost, and if it is determined that the actual supply amount for the customer's application value is insufficient immediately before the request for reduction is issued, a response is made. And a shortage procurement unit that selects the alternative means having a high speed .

According to this configuration, in response to a power consumption reduction request from a power company, the power that can be reduced is estimated, the certainty of the application value for the amount of reduction applied by the consumer is determined, and the power shortage It is determined whether a negative watt equivalent to the shortage can be created at the time of occurrence. Then, when there is a shortage of negawatts that can be created, the shortage of creation of negative watts is efficiently replenished by combining alternative means that can replenish the shortage amount at the time of shortage occurrence. At the same time, if it is determined that the actual supply amount for the customer's application value is insufficient before a request for reduction of power consumption is issued by the power company, the cost is suppressed for those that are less urgent On the other hand, if it is determined that the actual supply amount for the customer's application value is insufficient immediately before the request for reduction is issued, it is possible to immediately replenish those that are highly urgent.

  According to the present invention, it is possible to efficiently supply a shortage of negative wattage by combining various replenishment means, and to improve the supply and stabilization of the transaction price in the power trading market.

It is a block diagram which shows the structure of the electric power supply adjustment system which concerns on one Embodiment of this invention. It is a block diagram which shows the hardware constitutions of the electric power supply adjustment apparatus concerning the embodiment. It is a block diagram which shows the function structure of the electric power supply adjustment apparatus concerning the embodiment. It is a conceptual diagram explaining the reducible amount concerning the embodiment. It is a conceptual diagram explaining the reducible amount concerning the embodiment. It is a chart which shows an example of the alternative means table concerning the embodiment. It is a flowchart which shows operation | movement of the electric power supply adjustment apparatus concerning the embodiment. It is a flowchart which shows the detail of the shortage procurement process concerning the embodiment.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

(1) Overview of the present embodiment As described above, in demand response, when the wholesale market price of electric power rises or when the reliability of the system decreases, the customer uses the electric power by changing the electricity rate or paying the reward. The power consumption pattern is changed to temporarily suppress the power consumption. Negawatt, which is created by temporarily suppressing the use of electric power to reduce power reception, is sold in the electric power market in the same manner as power generation.

  Here, the negative wattage created by temporarily suppressing the use of power and reducing power reception will be described. For example, a case where a certain consumer purchases electric power with a long-term contract will be described. One day, an intense cold wave occurs, and the next day's demand is expected to increase sharply. At this time, a customer who has a long-term contract can also suppress power consumption rather than the amount of power purchased by the long-term contract by using an oil stove instead of an air conditioner. This reduced amount of power is bought and sold in the market as negawatts.

  A case where a certain consumer has a heat pump water heater with a hot water storage tank (hereinafter referred to as an HP water heater) will be described. Since the HP water heater has a heat storage function, it is possible to adjust the operating time to some extent without impairing convenience for consumers. For example, the HP water heater can be operated at night when the power price is low to prepare for the demand for hot water during the daytime.

  In other words, if the power price in the time zone that was originally supposed to operate the HP hot water supply system is higher than the power price in other time zones, the operation during the time zone that was originally supposed to be operated is suppressed, and the power price is low By operating in the time zone, it can be advantageous to procure power. It is thought that stabilization of the market price can be realized as a result of the active trading of negawatts based on the market mechanism.

  In general, the consumer does not directly interact with the market, but the aggregator that aggregates the consumers performs the above-described buying and selling according to the daily power price, and the consumer's electrical equipment is directly or , Contact customers and control indirectly. The aggregator makes profits and pays consumers.

  However, the above-mentioned negative wattage is likely to be affected by the influence of the climate, etc. and the human behavior that exists in the demand area, so it is thought that the certainty of creation is inferior compared to the power generation by the generator. When negawatts cannot be created due to power saving etc. in response to the demand for reduction of power consumption, there is a risk that the supply and transaction price stability in the power trading market may be hindered.

  Therefore, in the present embodiment, various supply means are combined to efficiently replenish the shortage of negative wattage creation, and it is possible to improve the supply and stabilization of the transaction price in the power transaction market.

(2) Configuration of Power Supply Adjustment System Next, the configuration of the power supply adjustment system will be described with reference to FIG. As shown in FIG. 1, the power supply adjustment system 1 includes various devices and various terminals included in each of an aggregator 10, a customer 20, a power company 30, and a market operator 40. The network 50 includes a public line network such as the Internet, a telephone line network, and a satellite communication network, and a dedicated line network such as WAN, LAN, and IP-VPN, and may be wired or wireless. The network 50 is a communication path for connecting various devices and various terminals constituting the power supply adjustment system 1 so that they can communicate with each other.

  The aggregator 10 is a business operator that collects the power replenished from the consumer 20 and trades with the power business operator 30 or the market operator, and combines the replenishment means from the consumer 20 using the power replenishment adjustment device 100. To replenish the shortage of negative watts.

  In the present embodiment, the aggregator 10 directly manages the power replenished from the customer 20, but the present invention is not limited to this example. For example, the aggregator 10 is configured in multiple stages, and the aggregator (first aggregator) that trades with the electric power company 30 or the market operator 40 and the aggregator (first aggregator) that directly manages the power supplied from the consumer 20 ( (Second aggregator). In this case, the first aggregator trades power in kilowatts with the electric power company 30 or the market operator 40. Then, the second aggregator receives instructions from the first aggregator, selects the generator 250 of the consumer 20 that can supply the necessary power, or supplies power to the generator 250 of the consumer 20 Or give instructions.

  The consumer 20 is an individual or a corporation having a generator 250 that can supply power, and manages the supply and demand of power using the information processing terminal 200 connected to the generator 250. In addition, the information processing terminal 200 manages negative watts created by temporarily suppressing the use of power and power supplied by the generator 250.

  Examples of the generator 250 include a diesel engine generator (hereinafter referred to as DEG (Diesel Engine Generator)), a combined heat and power system (hereinafter referred to as CHP (Combined Heat and Power)), and electricity. Examples include automobiles (hereinafter referred to as EV (Electric Vehicle)), storage batteries, solar power generation systems (hereinafter referred to as PV (Photovoltaic)), and the like.

  For example, a CHP with a hot water supply tank generates electricity and heat simultaneously with gas supplied from a gas company, heats tap water with the generated heat, and hot water obtained by heating is stored in the hot water supply tank. And the warm water stored in this hot water supply tank is utilized as a heat source.

  The electric power company 30 is an electric power generation company, and uses the information processing terminal 300 to make a contract regarding a demand response with the aggregator 10 or notify the aggregator 10 of a power reduction request.

  The market operator 40 is an operator that operates the power market and provides power to the aggregator 10 and the customer 20. The market operator 40 contracts with the consumer 20 and the aggregator 10 using the information processing terminal 400 to manage the buying and selling of electric power in the market.

(3) Configuration of Power Supply Adjustment Device (3-1) Hardware Configuration of Power Supply Adjustment Device Next, a hardware configuration of the power supply adjustment device 100 will be described with reference to FIG. Note that the information processing terminal 200 of the consumer, the information processing terminal 300 of the market operator, and the information processing terminal 400 of the retailer are almost the same as the hardware configuration of the power supply adjustment device 100, and thus detailed description thereof is omitted. .

  As illustrated in FIG. 2, the power supply adjustment device 100 includes a CPU 110, an input device 120, an output device 130, a communication device 140, and a storage device 150.

  The CPU 110 functions as an arithmetic processing device and a control device, and controls the overall operation within the power supply adjustment device 100 according to various programs.

  The input device 120 is an input unit for inputting information by the user such as a mouse, keyboard, touch panel, button, microphone, switch, and lever, and an input that generates an input signal based on the input by the user and outputs the input signal to the CPU 110. It consists of a control circuit.

  The output device 130 includes, for example, a display device such as a CRT (Cathode Ray Tube) display device, a liquid crystal display (LCD) device, an OLED (Organic Light Emitting Display) device and a lamp, and an audio output device such as a speaker and headphones. The

  The communication device 140 is a communication interface configured with, for example, a communication device for connecting to the communication network 12. The communication device 215 may be a wireless LAN (Local Area Network) compatible communication device, a wireless USB compatible communication device, or a wire communication device that performs wired communication.

  The storage device 150 is a storage medium such as a RAM (Read Access Memory) and a ROM (Read Only Memory). The storage device 150 stores a processing unit 160 that stores programs for executing various processes, and a storage unit 170 that stores various data, tables, and the like.

(3-2) Functional Configuration of Power Supply Adjustment Device With reference to FIG. 3, the functional configuration of the power supply adjustment device 100 will be described. The programs stored in the processing unit 160 of the storage device 150 are a reducible amount estimation unit 161, an application value certainty determination unit 162, a shortage estimation unit 163, and a shortage procurement unit 164.

  The reducible amount estimation unit 161 has a function of estimating how much power can be reduced in response to a power reduction request from the power company 30.

  For example, as shown in FIG. 4, the reducible amount estimation unit 161 calculates a power demand (demand curve) for which demand is predicted in a predetermined period, and a difference e between the minimum heat storage amount and the power amount required during the same period. To do. The reducible amount estimation unit 161 calculates the difference f as a reducible amount indicating how much power (kWh) can be reduced.

  Moreover, as shown in FIG. 5, the difference f of the energy storage of the consumer 20 at the present time and the demand electric energy (kWh) actually demanded is calculated. Then, based on the difference f, it is determined how much power can be reduced. That is, the reducible amount estimation unit 161 calculates a usable period as the reducible amount without the amount of power corresponding to the difference f falling below the demand power amount (kWh).

  The application value certainty determination unit 162 has a function of determining the certainty of the application value of the reduction amount applied by the customer 20. The application value certainty determination unit 162 outputs the result of determining the certainty of the application value as the reduction certainty 171. The reduction certainty 171 may be, for example, negative wattage information that is reliably created in a predetermined time unit in units of 20 consumers. Further, it may be negative wattage information that is reliably created from a plurality of consumers 20 in a predetermined time unit.

  The application value of the reduction amount applied by the consumer 20 is a negative wattage value applied in advance by a contract or the like. As described above, the negative watt created by the consumer 20 varies depending on the outside air temperature, the usage status of the consumer 20, and the like. For this reason, the value of the amount of reduction applied by the consumer 20 may differ from the value that can actually be reduced.

  For example, the application value certainty determination unit 162 determines the certainty of the application value of the reduction amount in view of the outside air temperature at the time of the power reduction request requested from the electric power company 30. Calculate the temperature difference between the outside temperature at normal time and the outside temperature at the time of power reduction request, and if the temperature difference is small, it is judged that the certainty of the application value is high, and if the temperature difference is large, the certainty of the application value May be determined to be low.

  In addition, when the generator 250 is an EV, the likelihood of the application value for the reduction amount is determined in consideration of the frequency of delivery of the EV of the customer 20 and the amount of delivery time. For example, when the EV delivery frequency at the time of requesting power reduction is high, the possibility of discharge may be reduced, and the reliability of the application value may be reduced.

  Further, when the generator 250 is a CHP or a storage battery, the probability of the application value for the reduction amount is determined based on the remaining heat amount and the storage amount. For example, when the amount of remaining heat and the amount of stored electricity at the time of requesting power reduction are lower than the normal amount of remaining heat and the amount of stored electricity, it may be determined that the reliability of the application value is reduced. As described above, the application value certainty determination unit 162 determines the certainty of the application value, so that replenishment for the lack of negative watt creation can be ensured.

  The shortage estimation unit 163 generates a power shortage occurrence time (based on the reduction possible amount calculated by the reducible amount estimation unit 161 and the reduction certainty 171 for the application value output by the application value certainty determination unit 162. time) 172 and deficiency (kW) 173 are calculated. When a demand response is issued from the electric power company 30 and the demand for reduction of the demand response cannot be satisfied by the negative watt created by the customer 20, it is necessary to supply power shortage by other alternative means. is there. The shortage estimation unit 163 calculates a shortage occurrence time 172 when power shortage occurs and a power shortage amount 173 that requires alternative means.

  The shortage procurement unit 164 has a function of determining an alternative unit that can replenish the shortage amount 173 at the shortage occurrence time 172 calculated by the shortage estimation unit 163. The shortage procurement unit 164 refers to the alternative means table 174 and selects an alternative means that can replenish the shortage amount 173 by the shortage occurrence time 172.

  The alternative means table 174 is a table for managing information on alternative means, and as shown in FIG. 6, the alternative means column 1741, the maximum output amount (kw) column 1742, the reaction rate (sec) column 1743, the continuation time (Min) column 1744, recharge condition time column 1745, price (¥ / kWh) column 1746, and location column 1747.

  The alternative means column 1741 stores various alternative means such as a power market and an open market in addition to the generator 250 of the consumer 20, for example, DEG, CHP, EV, storage battery, and PV. Examples of the open market include the spot market that trades electricity delivered the next day, the futures market and the forward market that trades electricity delivered after the next day, and the imbalance market that trades electricity delivered that day. Among the public markets, the spot (SPOT) market is used as an alternative.

  The maximum output amount (kw) column 1742 stores the maximum output amount of each alternative means. The reaction rate (sec) column 1743 stores the reaction rate (sec) of each alternative means. The continuation time (min) column 1744 stores the continuation time of each alternative means.

  The recharge condition time column 1745 stores information on the condition time during which each alternative means can be recharged. The price (¥ / kWh) column 1746 stores the price of each alternative means. The location column 1747 stores information on the location where each alternative means is supplied.

  In FIG. 6, for example, the maximum output amount of DEG is 15 kw, the reaction speed is 360 seconds, the continuous time is 60 minutes, the recharge is always possible, the price is 30 yen / kWh, and the supply place is remote from the power receiving place. The maximum output of CHP is 30kw, the reaction speed is 600sec, the continuous time is 120min, the price when there is a heat demand is 15 yen / kWh, the price when there is no heat demand is 40 yen / kWh, the supply place is It can be seen from the place where the power is received that it is nearby.

  The maximum EV output is 5kw, the reaction speed is 15sec, the duration is 5min, the recharge is late at night, the electricity area is cheap, the price is 20 yen / kWh, the supply location is close to the power receiving location I understand. The maximum output of the storage battery is 8kw, the reaction speed is 10sec, the continuous time is 3min, the recharge is late at night, the electricity area is cheap, the price is 18 yen / kWh, the supply location is close to the power receiving location I understand. Also, the maximum PV output is 2.5kw, the reaction speed is 3sec, the continuous time is possible as long as there is solar radiation, recharge is always possible, the price is 50 yen / kWh, the supply location may be near the power receiving location Recognize.

  The maximum output in the electricity market is 100kw, the reaction speed is 3600sec, recharging is always possible, and the price is 50 yen / kWh. In addition, the maximum output of the open market (SPOT) is 100kw, the reaction speed is 5400sec, it can be reserved 2 hours in advance, and the price is 10-20 yen / kWh.

  Returning to FIG. 3, the shortage procurement unit 164 refers to the consumer life information 175 and determines whether there is a problem in the life of the consumer 20 by using the generator 250 of the consumer 20. 20 alternatives are selected that do not interfere with life. The consumer life information 175 associates the generator 250 owned by the consumer 20 with the time zone and usage amount of the generator 250 used. For example, the shortage procurement unit 164 selects the generator 250 as an alternative means in a time zone other than the time zone in which the customer 20 uses the generator 250. When the selected alternative means is the generator 250 of the consumer 20, the shortage procurement unit 164 stores the information of the generator 250 of the consumer 20 selected in the private power generation information 177.

  In addition, referring to the generation period 176 and the private power generation information 177, an alternative unit that can supply power during a shortage period is selected, or an alternative unit that can supply power by the generation period is selected. Further, when a plurality of extra alternative means exceeding the shortage 173 are selected, an alternative means with a low price is selected.

  The shortage procurement unit 164 refers to the alternative means table 174, the consumer life information 175, the generation period 176, and the private power generation information 177 until the shortage calculated by the shortage estimation unit 163 is covered. The customer 20 is instructed to procure the shortage by the supply means.

  The procurement of the shortage of power by the power supply adjustment device 100 may be performed every time a demand response transaction is performed, or may be performed every time a shortage of negative watt creation for a reduction request occurs. Further, it may be executed at predetermined intervals.

  Moreover, you may make it determine the selection method of the alternative means by the shortage procurement part 164 according to the progress of a failure. For example, when it is determined that the actual supply amount of negative wattage for the application value of the customer 20 is insufficient before the reduction request is issued, since the urgency is low, an alternative means is selected with priority on cost. It may be. Further, when it is determined that the actual supply amount of the negative wattage with respect to the application value of the customer 20 is insufficient immediately before the request for reduction is issued, since it is urgent, an alternative means that can be replenished immediately, that is, a reaction An alternative means having a high speed may be selected. In addition, when it is determined that the supply amount of negative wattage is insufficient while the reduction request is issued and power cannot be supplied from the customer 20 or the market, the power is supplied using the generator of the aggregator 10 itself. It is also possible to do.

  The input unit 165 has a function of inputting various data via the input device 120 and acquiring data received from other devices connected via a network. The output unit 166 has a function of outputting various data via the output device 130 and instructing data transmission to another device connected via the network.

  The storage unit 170 stores the reduction certainty 171, the shortage occurrence time 172, the shortage amount 173, the alternative means table 174, customer life information 175, the generation period 176, and private power generation information 177.

(4) Operation of Power Supply Adjustment Device Next, details of the operation of the power supply adjustment device 100 will be described with reference to FIGS. 7 and 8. In the following description, the processing entity of various processes is described as a “program”, but it goes without saying that the CPU 110 of the power supply adjustment device 100 actually executes the process based on the program.

  As shown in FIG. 7, the input unit 165 receives a demand response (DR) command (S101). The demand response issuance is a request to reduce the power generated from the power company 30 as described above. The input unit 165 receives a demand response issue and obtains a power reduction request amount.

  Next, the reducible amount estimation unit 161 estimates how much power can be reduced in response to a power reduction request from the power company 30 (S102). Specifically, the reducible amount estimation unit 161 calculates, as a reducible amount, the difference between the power demand (demand curve) for which demand is predicted during a predetermined period and the minimum required amount of heat storage and power during the same period. The difference between the stored energy of the customer 20 at the current time and the actual demanded power demand (kWh) is calculated as a reduction possible amount.

  Next, the application value certainty determination unit 162 determines the certainty of the application value of the reduction amount applied by the customer 20 (S103). Specifically, the application value certainty determination unit 162 determines the certainty of the application value of the reduction amount applied by the customer 20 and outputs the reduction certainty 171.

  Then, the application value certainty determination unit 162 determines whether or not the reduction request amount received in step S101 can be satisfied with the reduction amount applied by the customer 20 (S104).

  When it is determined in step S104 that the reduction request amount can be satisfied, it is possible to cover the power reduction request from the electric power company 30 only with the negawatt applied for by the consumer 20, and using an alternative means Since it is not necessary to supply power, the process ends.

  On the other hand, if it is determined in step S104 that the required reduction amount cannot be satisfied, the shortage estimation unit 163 uses the power reduction occurrence time (time) 172 and the shortage amount (kW) based on the reduction certainty 171. 173 is calculated. When the reduction certainty 171 is information on negative watts that are surely created in a predetermined time unit of the customer 20, the shortage estimation unit 163 compares negative watts that are surely created every predetermined time with the required amount of reduction. Then, the time when the shortage occurs and the shortage amount are calculated.

  Then, the shortage procurement unit 164 executes shortage procurement processing for determining an alternative means that can replenish the shortage amount 173 at the shortage occurrence time calculated by the shortage estimation unit 163 (S106). The shortage procurement process in step S106 will be described in detail later.

  Then, the shortage procurement unit 164 determines whether the shortage can be procured by the alternative means by the shortage occurrence time by the shortage procurement processing in step S106 (S107).

  If it is determined in step S107 that the shortage can be procured by the alternative means by the shortage occurrence time, the shortage procurement unit 164 ends the process. On the other hand, if it is determined in step S107 that the shortage cannot be procured by the alternative means by the shortage occurrence time, the shortage procurement unit 164 can resolve the shortage in the demand response market (DR market) for a predetermined period. Is determined (S108).

  If it is determined in step S108 that the shortage can be resolved in the demand response market (DR market) for a predetermined period, the shortage procurement unit 164 ends the process. On the other hand, if it is determined in step S108 that the shortage cannot be resolved in the demand response market (DR market) for a predetermined period, the shortage procurement process in step S106 is executed again.

  Next, details of the shortage procurement process in step S106 will be described with reference to FIG. As shown in FIG. 8, the shortage procurement unit 164 first compares the power procurement price by the generator 250 with the procurement price by the power market transaction (S201). Specifically, the shortage procurement unit 164 refers to the alternative means table 174, the price when the shortage amount 173 calculated in step S105 is supplied by the alternative means by the generator 250 of the customer 20, the power market, Compare prices with replenishment in the open market.

  As a result of the comparison in step S201, the shortage procurement unit 164 determines whether it is cheaper to purchase power from the market than the power procurement by the generator 250 (S202).

  If it is determined in step S202 that it is cheaper to purchase electric power from the market than electric power procurement by the generator 250, the shortage procurement unit 164 executes processing from step S212 onward. On the other hand, if it is determined in step S202 that power procurement by the generator 250 is cheaper than purchasing power from the market, the shortage procurement unit 164 executes processing in step S203.

  In step S <b> 203, the shortage procurement unit 164 refers to the consumer life information 175 and confirms whether the life of the consumer 20 is hindered when the generator 250 supplies power corresponding to the shortage amount 173. (S203).

  As a result of the confirmation in step S203, the shortage procurement unit 264 determines whether there is a problem in the life of the customer 20 (S204).

  If it is determined in step S204 that there is a problem with the life of the customer 20, the shortage procurement unit 164 executes the process of step S212. On the other hand, if it is determined in step S203 that there is no problem in the life of the customer 20, the shortage procurement unit 164 selects a generator 250 that does not interfere with the life and stores it in the private power generation information 177 (S205). ). The private power generation information 177 stores the type of the generator 250 of the selected consumer 20, the replenishable time zone, the replenishment amount, and the like.

  Subsequently, the shortage procurement unit 264 calculates the generation period of the generator 250 by the generator 250 of the consumer 20 with reference to the generation period 176 and the private power generation information 177 (S206).

  Then, the shortage procurement unit 264 determines whether the power generation by the generator 250 is in time by the shortage occurrence time calculated in step S105 based on the generation period of power by the power generator 250 calculated in step S206 (S207). ).

  In step S207, when it is determined that the power generation by the generator 250 is not in time by the shortage occurrence time, the shortage procurement unit 264 executes the processing after step S212. On the other hand, if it is determined in step S207 that the power generation by the generator 250 is in time by the shortage occurrence time, the shortage procurement unit 264 generates power in time until the shortage occurs from the private power generation information 177 selected in step S206. The machine 250 is further selected and the private power generation information 177 is updated.

  Subsequently, the shortage procurement unit 264 determines whether or not the shortage amount 173 calculated in step S105 can be satisfied by the generator 250 selected in step S208 (S209).

  Then, as a result of the determination in step S209, if it is determined that the selected generator 250 does not satisfy the shortage amount 173 (S210), the shortage procurement unit 264 executes the process in step S212. On the other hand, as a result of the determination in step S209, when it is determined that the selected generator 250 satisfies the shortage amount 173 (S210), the shortage procurement unit 264 satisfies the shortage amount 173 from the private power generation information 177. The generator 250 is further selected, and the private power generation information 177 is updated (S211).

  If there are a plurality of generator 250 candidates that satisfy the shortage amount 173 in step S211, the shortage procurement unit 264 may select a generator 250 with a low cost from the plurality of generators 250. In step S211, the shortage procurement unit 264 may select the generator 250 to be selected according to the progress of the failure. For example, when the urgency is high, the generator 250 having a high reaction rate or maximum output amount is selected, or when the fault is long-term, the generator 250 having a long continuation time or the power generation having a long recharge condition time is selected. The machine 250 may be selected.

  If there is an obstacle to the life of the customer 20 (YES in step S204), if the power generation by the generator 250 is not in time until the shortage occurs (NO in step S207), the power generation by the generator 250 is insufficient. If not satisfied (NO in step S210), the shortage procurement unit 264 determines whether the power market is cheaper than the open market. If it is determined in step S212 that the power market is cheaper than the open market, the shortage procurement unit 264 instructs to purchase the shortage from the power market (S213). On the other hand, when it is determined in step S212 that the open market is cheaper than the power market, the shortage procurement unit 264 instructs to purchase the shortage from the open market (S214).

  In the above description, whether the life of the customer 20 is hindered in Step S203, whether the time until the shortage occurs in Step S207, or whether the shortage is satisfied in Step S210 is determined separately. It is not limited to, Each determination process may be performed simultaneously for every generator 250 of the consumer 20, and only a required determination process may be performed.

  Below, the specific example of the procurement method of the alternative means when the electric power suppression for creating a negative watt with respect to a reduction request cannot be shown.

  For example, suppose that the upper limit control of the rotation speed between 13:00 and 15:00 is requested | required with respect to the HP water heater of the consumer 20 as a reduction request. At this time, if the outside air temperature drops at 14:00 and the hot water noise of the HP water heater falls, it is assumed that the required negative wattage cannot be created between 14:00 and 15:00. In this case, the customer 20 is instructed to operate the gas heating as an alternative means between 14:00 and 15:00 to suppress electric power.

  In the above case, the CHP is scheduled to be started at 18:00, and the CHP is scheduled to start 3 hours ahead, and the CHP is started between 14:00 and 15:00 so that CHP can be operated as an alternative. Also good.

  In addition, when using the EV of the customer 20 as an alternative to the negative wattage, the amount of power that can be replenished is calculated in consideration of the usage frequency and usage state of the EV of the customer 20, or the necessary amount of power is calculated. Therefore, a predetermined instruction is output to the EV of the customer 20.

  For example, in the case where the EV of the customer 20 has unexpectedly left the store and the planned discharge has disappeared, the lighting of the EV is turned off and the suppression mode is set to ensure the necessary amount of power storage.

  Further, it is assumed that the shortage required at the shortage occurrence time is scheduled to be replenished with the EV of the customer 20. At this time, when it is notified from the EV of the customer 20 that an unexpected shipment will be made 2 hours before the shortage occurrence time, the shortage that was scheduled to be replenished by the EV of the customer 20 is replaced with the power market. Or supply the shortage by placing an order in the open market.

  Further, in the above case, the customer 20 may be instructed to advance the delivery timing and to reduce the electricity in the customer 20's house to create necessary power. Moreover, you may make it replenish the shortage by delaying the timing of leaving with respect to the consumer 20, and discharging EV. Further, when it is predicted that the EV discharge will increase more than expected, the EV delivery timing may be delayed with respect to the consumer 20 to supply the excess discharge as the shortage.

  Moreover, when surplus of electric power is generated by power generation in PV, the shortage may be replenished by delaying the EV delivery timing and discharging. Moreover, you may make it prepare for supply of a deficiency by storing hot water in the hot water supply tank of a HP water heater with the surplus of the electric power by PV power generation.

(5) Effects of the present embodiment As described above, according to the present embodiment, in response to a power consumption reduction request from the power company 30, the power that can be reduced is estimated and an application is made from the customer 20. The certainty of the applied value of the reduction amount thus determined is determined, and it is determined whether negative power corresponding to the shortage amount can be created at the time when the shortage of power occurs. Then, when there is a shortage of negawatts that can be created, the shortage of creation of negative watts is efficiently replenished by combining alternative means that can replenish the shortage amount at the time of shortage occurrence. Thereby, the supply and the stabilization of the transaction price in the power trading market can be improved.

DESCRIPTION OF SYMBOLS 10 Aggregator 100 Electricity supply adjustment apparatus 161 Reducible quantity estimation part 162 Application value certainty determination part 163 Insufficiency estimation part 164 Insufficient procurement part 20 Consumer 30 Electric power provider 40 Market operator

Claims (8)

A power supply adjustment device for adjusting power supply by a generator of a consumer who uses electric power,
A shortage estimation unit that estimates a shortage occurrence time and a shortage amount when power shortage occurs when a reduction amount applied by the consumer is short with respect to a reduction amount of power consumption requested by a power company;
An alternative means storage unit that stores alternative means other than the power reduction means applied by the consumer and the power information of the alternative means in association with each other in the alternative means table;
With reference to the alternative means table, as the alternative means that can procure electric power corresponding to the shortage amount at the shortage occurrence time, the amount of reduction of the power consumption from the electric power company according to the degree of failure progress. When it is determined that the actual supply amount for the customer's application value is insufficient before the reduction request is issued, the alternative means is selected with priority given to cost, and immediately before the reduction request is issued. When it is determined that the actual supply amount for the customer's application value is insufficient, a short procurement section that selects the alternative means having a high reaction speed ;
An electric power supply adjusting device comprising: The alternative means stored in the alternative means table includes a generator and a power trading market that the consumer has,
The power supply adjustment according to claim 1, wherein the power information of the alternative means includes information on a maximum output amount, a reaction speed, a generation period, a recharge condition time, or a procurement price of the alternative means. apparatus. The shortage procurement department
The power supply adjustment device according to claim 2, wherein an alternative means having a low procurement price is selected by comparing a procurement price of power by the generator and a procurement price of power in the power trading market. . The shortage procurement department
Based on the consumer's life information, the generator that can supply power corresponding to the shortage at the shortage occurrence time is selected within a range that does not hinder the consumer's life. The power supply adjusting device according to claim 3. The shortage procurement department
The power supply adjustment device according to claim 4, wherein the power generator capable of generating power by the shortage occurrence time is selected based on the power information of the power generator possessed by the consumer. The shortage procurement department
The power supply adjustment device according to claim 5, wherein the generator capable of generating electric power that satisfies the shortage is selected based on the power information of the generator that the consumer has. The shortage procurement department
The power for the shortage of the power is purchased from the power trading market when the shortage at the shortage occurrence time cannot be satisfied with the power of the generator of the consumer. The power replenishment adjusting device described in 1. A power supply adjustment method using a power supply adjustment device that adjusts power supply by a generator of a consumer who uses power,
The power supply adjustment device includes a control unit and a storage unit,
The storage unit stores an alternative means table in which alternative means other than the power reduction means applied by the consumer are associated with the power information of the alternative means,
The control unit estimates a shortage occurrence time and a shortage amount at which a power shortage occurs when a reduction amount requested by the consumer is insufficient with respect to a reduction amount of power consumption requested by a power company. A first step;
The control unit refers to the alternative means table as the alternative means that can procure electric power corresponding to the shortage amount at the shortage occurrence time , according to the degree of progress of the failure, from the power provider, the consumption If it is determined that the actual supply amount for the customer's application value is insufficient before the request for reducing the amount of power reduction is issued, the alternative means is selected with priority given to cost, and the reduction request is issued. A second step of selecting the alternative means having a high reaction speed when it is determined that the actual supply amount with respect to the application value of the customer is insufficient immediately before being performed ;
A method for adjusting power supply, comprising:

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