JP5394366B2 - Power supply system control method and power supply system - Google Patents

Description

  The present invention relates to a power supply system control method and a power supply system, and more particularly to a technique for appropriately and reliably controlling power supply and demand in an electric power system.

  Recently, a small-scale power system (hereinafter referred to as a microgrid) configured to combine a plurality of distributed power sources and power storage systems and control the amount of power generated by the distributed power sources according to demand has attracted attention.

  For example, in Patent Document 1, in a section separated by a section switch of a power system, a switch agent arranged in the section switch is used as an initiator, and a generator, load, and downstream switch in the section are used. The agent placed in the Responder is a responder, and by contracting the power supply and demand between these agents using the contract net protocol, the distributed power supply in the section and the distributed power supply that controls the supply and demand in the downstream section A control system is described.

  In Patent Document 2, a section agent (or microgrid agent) grasps a tidal flow in a section (or unit microgrid) separated by a section switch, and a tidal current increase / decrease amount is determined as a generator agent or a downstream section agent. The generator agent or downstream section agent autonomously repeats the chain of coordination with other generator agents or downstream section agents, respectively. A power system control system that performs supply and demand control is described.

JP 2008-301641 A JP 2009-159808 A

  By the way, when each agent communicates with other agents to control load power consumption autonomously, depending on the state of communication between the agents, each agent may not necessarily consume power from other agents. May not be able to obtain the information necessary for the control. However, even in such a case, it is required that each power supply system can appropriately control the supply and demand balance based on information that each agent can acquire at that time.

  The present invention has been made in view of such a background, and an object of the present invention is to provide a power supply system control method and a power supply system capable of appropriately and reliably controlling power supply and demand.

One aspect of the present invention for achieving the above object is a method for controlling a power supply system including one or more generators and one or more loads, and each of the generators includes: A generator agent that is an information processing device having a wireless communication function is attached, and a load agent that is an information processing device having a wireless communication function is attached to each of the loads, and the load agent is attached to itself. The power generation control is performed on the load, the generator agent acquires the generated power amount of the generator to which the generator agent is attached, and the acquired load is communicable with the load. was sent to the agent, the loading agent transmits, acquires the power consumption of the load which it is attached, the power consumption acquired in another communicable of the load agent and its The load agent, corresponding to the combination of the power consumption control and operation state of the power supply system defined by the combination of the generated power amount of one or more of the generator and the power consumption of one or more of the load association with, and stores the evaluation value the a value indicating the effect of supply and demand control of a power supply system in the case of performing the power control, the power generation amount of power transmitted from the generator agent that can communicate with itself The received power consumption amount received from the other load agents communicable with itself, and the received generated power amount and the received power consumption amount among the stored evaluation values and said elected criticism value that corresponds to the operation state determined by the combination of the acquired power consumption, of the selected and said evaluation value, the effect of the supply and demand control Identify the evaluation value of the atmospheric performed with respect to the its own said power control corresponding to the evaluation value identified are attached load, the load agent, after performing the power control, itself Receiving the generated power amount sent from the generator agent that can communicate with the load, obtaining the consumed power amount of the load attached thereto, and receiving the generated generated power amount and the acquired consumed power amount Based on the above, the regional requirement amount, which is a value indicating the difference in power supply and demand of the power supply system, is calculated, it is determined whether the calculated regional requirement amount is equal to or less than a predetermined threshold, and the calculated regional region When the requested amount is equal to or less than a predetermined threshold, the specified evaluation value is updated in a direction in which the effect of the supply and demand control increases .

  According to the present invention, each of the load agents can supply and demand based on the power consumption of the load to which the load agent is attached, the amount of generated power received from the generator agent, and the evaluation value stored by itself. The evaluation value having the maximum control effect is specified, and power consumption control corresponding to the specified evaluation value is performed on the load to which the evaluation value is attached. For this reason, each of the load agents can autonomously perform power consumption control on the load to which the load agent is attached. According to this, supply and demand control of the power supply system can be reliably performed.

  In addition, each of the load agents autonomously controls power consumption based on the evaluation value stored by itself, so even if the amount of generated power cannot be received from all of the generators existing in the power supply system, it is ensured. In addition, supply and demand control of the power supply system can be performed.

  Note that the power consumption control includes, for example, control for stopping power consumption of a load attached thereto, control for starting power consumption of a load attached thereto.

  According to the present invention, the load agent performs power consumption control corresponding to the specified evaluation value, and then receives the generated power amount sent from the generator agent that can communicate with the load agent and is attached to the load agent. If the calculated regional requirement amount is less than or equal to a predetermined threshold, for example, if the supply-demand difference in the power supply system decreases, the stored evaluation is obtained. The value is updated so that the effect of supply and demand control increases. Thus, according to the present invention, since the evaluation value stored in the load agent is automatically updated, the supply and demand control of the power supply system can be more reliably performed.

  Another aspect of the present invention is a method for controlling the power supply system, wherein the load agent performs the power consumption control and then transmits the power consumption transmitted from the load agent that can communicate with itself. A regional request that is a value indicating a difference in supply and demand of the power amount of the power supply system based on the received power consumption amount, the acquired power consumption amount, and the received power consumption amount The amount is calculated, it is determined whether or not the calculated regional requirement amount is equal to or less than a predetermined threshold, and when the calculated regional requirement amount is equal to or less than the predetermined threshold, the effect of the supply and demand control increases In addition, the specified evaluation value is updated.

  According to the present invention, the load agent performs the power consumption control corresponding to the specified evaluation value, and then the generated power amount sent from the power generation agent that can communicate with itself, and the load agent that can communicate with itself. When the received power consumption is received and the power consumption of the load attached to itself is acquired to calculate the regional demand, and the calculated regional demand is below a predetermined threshold, for example, power supply When the supply-demand difference in the system decreases, the stored evaluation value is updated in a direction in which the effect of supply-demand control increases. In this way, the evaluation value stored in the load agent is automatically corrected to an appropriate value, so that the stored evaluation value is a more effective value by repeatedly performing power consumption control by the load agent. Therefore, the power supply system can be controlled more reliably.

  Another aspect of the present invention is a method for controlling the power supply system, wherein the load agent performs the power consumption control and then transmits the power generation sent from the generator agent capable of communicating with itself. Receives the amount of power, obtains the amount of power consumption of the load attached to itself, and based on the received amount of generated power and the obtained amount of consumed power, calculates the difference in supply and demand of the amount of power of the power supply system A regional demand amount that is a value to be calculated, a determination is made as to whether or not the calculated regional demand amount exceeds a predetermined threshold value, and when the calculated regional demand amount exceeds a predetermined threshold value, the supply and demand The identified evaluation value is updated in a direction in which the control effect decreases.

  According to the present invention, the load agent performs power consumption control corresponding to the specified evaluation value, and then receives the generated power amount sent from the generator agent that can communicate with the load agent and is attached to the load agent. When the calculated regional demand exceeds a predetermined threshold, for example, when the supply-demand difference in the power supply system increases, the stored evaluation value is obtained. Update in a direction that reduces the effect of supply and demand control. In this way, the evaluation value stored in the load agent is automatically corrected to a more appropriate value, so that the stored evaluation value becomes a more effective value by repeatedly performing power consumption control by the load agent. Therefore, the power supply system can be controlled more reliably.

  In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

  ADVANTAGE OF THE INVENTION According to this invention, the supply-and-demand control of the electric power in an electric power grid | system can be performed appropriately and reliably.

1 is a schematic configuration diagram of a power supply system 1. FIG. 2 is a diagram illustrating a hardware configuration of a generator agent 100. FIG. 2 is a diagram illustrating a hardware configuration of a load agent 200. FIG. It is a figure which shows the main functions with which the generator agent 100 is provided. It is a figure which shows the main functions with which the load agent 200 is provided. 5 is a diagram illustrating an example of an evaluation value management table 150. FIG. It is a figure which shows an example of the driving | running state management table. It is a figure which shows an example of the driving | running state management table. It is a flowchart explaining generator agent table update process S800. It is a flowchart explaining load agent table update process S900. It is a flowchart explaining power consumption control processing S1000. It is a flowchart explaining evaluation value update process S1100. It is a figure explaining the process of the load agent. It is a flowchart explaining evaluation value update process S1300.

  FIG. 1 shows a schematic configuration of a power supply system 1 described as an embodiment. The power supply system 1 includes one or more generators 10 and one or more loads 20. The power supply system 1 constitutes a small-scale power system such as a microgrid or a large-scale power system such as a commercial power system.

  The generator 10 is, for example, a cogeneration generator (diesel generator, gas turbine generator, gas engine generator, etc.), or a generator (wind generator, solar generator, etc.) using natural energy or unused energy. Small hydroelectric generator, waste generator, biomass generator, etc.).

  The type of load 20 is not necessarily limited. For example, power generation using natural energy such as a storage load (battery of an electric vehicle, a storage battery used for an electric vehicle, etc.) or a heat storage load (such as a domestic water heater or a commercial regenerative air conditioner). The power obtained by the machine is used.

  A generator agent 100 (PV1, PV2, PV3, PV4, PV5) is attached to each of the generators 10. Each load 20 is provided with a load agent 200 (EV1, EV2, EV3, EV4, EV5).

  The generator agent 100 and the load agent 200 are both information processing apparatuses having a wireless communication function. Each of the generator agents 100 and each of the load agents 200 perform wireless communication with each other, whereby the communication network 5 is configured.

  The wireless communication is performed using a communication infrastructure such as a mobile phone network, UWB (Ultra-wide Band), wireless LAN (LAN: Local Area Network), ZigBee, and other low-power radio. The wireless communication includes, for example, AODV (Ad hoc On-demand Distance Vector routing), DSR (Dynamic Source Routing), OLSR (Optimized Link State Routing Protocol), TBRPF (Topology Broadcast based on Reverse Path Forwarding routing protocol), etc. This is done according to communication standards.

  FIG. 2 shows a hardware configuration of the generator agent 100. As shown in the figure, the generator agent 100 includes a central processing unit 111, a main storage device 112, an external storage device 113, a generated power amount measuring device 114, an input device 115, a display device 116, a wireless communication device 117, and a clock. A device 118 is provided.

  The central processing unit 111 is configured using, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), and performs overall control of the generator agent 100. The main storage device 112 is configured using, for example, a RAM (Random Access Memory) or a ROM (Read Only Memory), and stores programs and data. The external storage device 113 is a hard disk drive (Hard Disk Drive) or an SSD (Solid State Drive), and stores programs and data. The generated power amount measuring device 114 measures the generated power amount of the generator 10 to which it is attached.

  The input device 115 receives an operation input performed by a user on a user interface such as a keyboard and a mouse. The display device 116 is a liquid crystal display or the like, and provides visual information to the user. The wireless communication device 117 performs wireless communication with other generator agents 100 and load agents 200. The time measuring device 118 is configured using an RTC (Real Time Clock) or the like, and outputs date and time information (time stamp) such as the current date and time.

  FIG. 3 shows the hardware configuration of the load agent 200. As shown in the figure, the load agent 200 includes a central processing unit 211, a main storage unit 212, an external storage unit 213, a power consumption measuring unit 214, an input unit 215, a display unit 216, a wireless communication unit 217, and a timing unit 218. And a control circuit 219.

  The central processing unit 211 is configured using, for example, a CPU or MPU, and performs overall control of the load agent 200. The main storage device 212 is configured using, for example, a RAM or a ROM, and stores programs and data. The external storage device 213 is a hard disk drive, SSD, or the like, and stores programs and data. The power consumption measuring device 214 measures the power consumption of the load 20 to which the power consumption measuring device 214 is attached.

  The input device 215 receives an operation input performed by a user on a user interface such as a keyboard and a mouse. The display device 216 is a liquid crystal display or the like, and provides visual information to the user. The wireless communication device 217 performs wireless communication with other load agents 200 and generator agents 100. The timing device 218 is configured using an RTC or the like, and outputs date / time information such as the current date / time.

  The control circuit 219 controls the power consumption of the load 20 to which the control circuit 219 is attached. Although the mode of power consumption control performed by the control circuit 219 is not necessarily limited, the control circuit 219 according to the present embodiment controls the power consumption of the load 20 to which the control circuit 219 is attached (hereinafter referred to as “OFF control”). )) And control for starting power consumption of the load 20 to which the terminal 20 is attached (hereinafter referred to as “ON control”).

  FIG. 4 shows main functions of the generator agent 100 and main data managed by the generator agent 100. As shown in the figure, the generator agent 100 includes a self-generated power amount acquisition unit 131, a self-generated power amount transmission unit 132, another generated power amount reception unit 133, another generated power amount transmission unit 134, and another power consumption amount reception unit 135. , And another power consumption amount transmission unit 136. These functions are realized by the hardware of the generator agent 100 or by the central processing unit 111 of the generator agent 100 reading out and executing a program stored in the main storage device 112 or the external storage device 113. Is done. Further, as shown in the figure, the generator agent 100 manages the operation state management table 140.

  Among these, the self-generated power amount acquisition unit 131 acquires the generated power amount (hereinafter referred to as self-generated power amount) of the generator 10 to which the self-generated power amount is measured by the generated power amount measuring device 114. The self-generated power amount transmission unit 132 transmits the self-generated power amount acquired by the self-generated power amount acquisition unit 131 to the load agent 200 or another generator agent 100.

  The other generated power amount receiving unit 133 receives the generated power amount (hereinafter referred to as “other generated power amount”) sent from the load agent 200 or the other generator agent 100 (including the case of being transferred). . The other generated power amount transmission unit 134 transmits (transfers) the other generated power amount received by the other generated power amount receiving unit 133 to the load agent 200 or the other generator agent 100.

  The other power consumption receiving unit 135 receives the power consumption (hereinafter referred to as “other power consumption”) sent from the load agent 200 or another generator agent 100 (including the case where it is transferred). . The other power consumption transmitting unit 136 transmits (transfers) the other power consumption received by the other power consumption receiving unit 135 to the load agent 200 or the other generator agent 100.

  FIG. 5 shows main functions of the load agent 200 and main data managed by the load agent 200. As shown in the figure, the load agent 200 includes a self-power consumption acquisition unit 231, a self-power consumption transmission unit 232, another power generation amount reception unit 233, another power generation amount transmission unit 234, and another power consumption amount reception unit. 235, another power consumption transmission unit 236, an evaluation value management unit 237, a load control unit 238, an area requirement amount calculation unit 239, and an evaluation value update unit 240. These functions are realized by hardware of the load agent 200 or when the central processing unit 211 of the load agent 200 reads out and executes a program stored in the main storage device 212 or the external storage device 213. . Further, as shown in the figure, the load agent 200 manages an evaluation value management table 150 and an operation state management table 160.

  Among these, the self-power consumption acquisition unit 231 acquires the power consumption of the load 20 attached thereto (hereinafter referred to as self-power consumption) measured by the power consumption measurement device 214. The self-power consumption transmission unit 232 transmits the self-power consumption acquired by the self-power consumption acquisition unit 231 to the generator agent 100 and other load agents 200.

  The other power generation amount receiving unit 233 receives the power generation amount (other power generation amount) transmitted (including the case of being transferred) transmitted from the generator agent 100 or another load agent 200. The other generated power amount transmitting unit 234 transmits (transfers) the other generated power amount received by the other generated power amount receiving unit 233 to the generator agent 100 and the other load agent 200.

  The other power consumption receiving unit 235 receives the power consumption (other power consumption) sent from the generator agent 100 and other load agents 200 (including the case where the agent is transferred). The other power consumption amount transmitting unit 236 transmits (transfers) the other generated power amount received by the other power consumption amount receiving unit 235 to the generator agent 100 or the other load agent 200.

  The evaluation value management unit 237 has the effect of the supply and demand control of the power supply system 1 when each of the load agents 200 performs power consumption control on the load 20 to which each load agent 200 is attached (for example, performed power consumption). The evaluation value management table 150 manages an evaluation value that is a value representing an effect grasped from a decrease in the area requirement AR (Area Requirement) in the power supply system 1 for control.

  In the present embodiment, the evaluation value is calculated based on the operating state S (t) (t = 0, 1) of the power supply system 1 determined by the combination of the self-generated power amount, self-consumed power amount, other generated power amount, and other power consumption amount. , 2,..., N) and the power consumption control A (s) (s = 0, 1, 2,..., M) that can be performed by the load agent 200 as variables. This is expressed as a function Q (S (t), A (s)). In the present embodiment, as the power consumption control A (s), A (0) that is power consumption control corresponding to “OFF control” and A (1) that is power consumption control corresponding to “ON control”. There shall be.

  FIG. 6 shows an example of the evaluation value management table 150. Each record of the evaluation value management table 150 includes an operation state S (t) (t = 0 to n) (reference numeral 611), an OFF evaluation value Q (S (t), A (0)) (reference numeral 612), and ON. Each item has an evaluation value Q (S (t), A (1)) (reference numeral 613).

  In the operation state S (t) (t = 0 to n) 611, a combination of the power generation amount of the generator 10 (PV) and the power consumption amount of the load 20 (EV) (hereinafter referred to as the operation state). Is set.

  In the OFF evaluation value Q (S (t), A (0)) 612, an evaluation value when the OFF control is performed in the operation state is set.

  In the ON evaluation value Q (S (t), A (1)) 613, an evaluation value when ON control is performed in the operation state is set.

  The load control unit 238 illustrated in FIG. 5 performs power consumption control on the load 20 to which the load control unit 238 is attached, based on the evaluation value Q (S (t), A (s)).

  The regional requirement amount calculation unit 239 calculates the regional requirement amount AR, which is a value indicating the power supply / demand difference of the power supply system 1.

  The evaluation value update unit 240 updates the evaluation value Q (S (t), A (s)) based on the regional request amount AR calculated by the regional request amount calculation unit 239.

  FIG. 7A shows an example of the operation state management table 140 managed by the generator agent 100. In the operation state management table 140, the operation state in the power supply system 1 currently known by the generator agent 100 is managed.

  As shown in the figure, each record of the operation state management table 140 has items of an agent ID 711, an electric energy 712, and a last update time 713.

  Among these, the agent ID 711 is set with an identifier assigned to each of the generator agent 100 and the load agent 200. The power amount 712 includes a power generation amount of the generator agent 100 specified by the agent ID 711 (self-generated power amount or other power generation amount) and a power consumption amount of the load agent 200 specified by the agent ID 711 (self-power consumption amount). Or other power consumption amount) is set. In the last update time 713, the last update time of the electric energy 712 is set.

  FIG. 7B shows an example of the operation state management table 160 managed by the load agent 200. In the operation state management table 160, the operation state in the power supply system 1 currently grasped by the load agent 200 is managed.

  As shown in the figure, each record of the operation state management table 160 has items of an agent ID 751, an electric energy 752, and a last update time 753.

  Among these, the agent ID 751 is set with an identifier assigned to each of the generator agent 100 and the load agent 200. The power amount 752 includes the power generation amount of the generator agent 100 specified by the agent ID 751 (self-generated power amount or other power generation amount) and the power consumption amount of the load agent 200 specified by the agent ID 751 (self-power consumption amount). Or other power consumption amount) is set. As the last update time 753, the last update time of the electric energy 752 is set.

  In addition, since the communication state between other agents differs for each agent, the operation state management table (operation state management table 140 or operation state management table) held by each agent (the generator agent 100 or the load agent 200). 160) does not necessarily match.

= Description of processing =
Next, processing performed in the power supply system 1 of the present embodiment having the above configuration will be described.

<Generator agent table update processing>
FIG. 8 is a flowchart for explaining a process (hereinafter referred to as a generator agent table update process S800) for updating the operation state management table 140 performed by the generator agent 100. The generator agent table update process S800 is performed when the generator agent 100 receives the other generated power amount or the other consumed power amount from the load agent 200 or the other generator agent 100.

  When the generator agent 100 receives the other power generation amount or the other power consumption amount (S801), the generator agent 100 updates the operation state management table 140 with the content of the received other power generation amount or other power consumption amount (S802).

  Next, the generator agent 100 transmits (transfers) the other power generation amount and the other power consumption amount received in S801 to other stations in a communicable state (S803).

  Next, the generator agent 100 acquires the self-generated power amount (S804), and transmits the acquired self-generated power amount to another station in a communicable state (S805).

  Next, the generator agent 100 updates the operation state management table 140 with the amount of self-generated power acquired in S804 (S806).

<Load agent table update processing>
FIG. 9 is a flowchart for explaining processing (hereinafter referred to as load agent table update processing S900) for updating the operation state management table 160 among the processing performed by the load agent 200. The load agent table update process S900 is performed when the load agent 200 receives the other power generation amount or the other power consumption amount from the generator agent 100 or the other load agent 200.

  When the load agent 200 receives the other power generation amount or the other power consumption amount (S901), it updates the operation state management table 160 with the content of the received other power generation amount or other power consumption amount (S902).

  Next, the load agent 200 transmits the other power generation amount and the other power consumption amount received in S901 to other stations in a communicable state (S903).

  Next, the load agent 200 acquires the self-power consumption (S904), and transmits (transfers) the acquired self-power consumption to another station in a communicable state (S905).

  Next, the load agent 200 updates the operation state management table 160 with the self-power consumption acquired in S904 (S906).

<Power consumption control processing>
FIG. 10 is a flowchart for explaining processing (hereinafter referred to as power consumption control processing S1000) performed when the load agent 200 controls the power consumption of the load 20 to which the load agent 200 is attached. The power consumption control process S1000 is performed at any time (a preset timing, a regular period, etc.).

  The load agent 200 determines the evaluation values Q (S (t0), A (0) of the OFF control A (0) in the current (= t0) operating state S (t0) of the power supply system 1 determined from the operating state management table 160. )) And the evaluation value Q (S (t0), A (1)) of the ON control A (1) in the current (= t0) operating state S (t0) of the power supply system 1 (S1001).

  Note that, in order for the operating state S (t0) to indicate the current state of the power supply system 1 as accurately as possible, among the records registered in the operating state management table 160, the last update date and time 753 is a predetermined date and time. Older ones may be excluded from specific elements of the driving state S (t0).

  The load agent 200 has the effect of supply and demand control in the power supply system 1 out of the evaluation value Q (S (t0), A (0)) and the evaluation value Q (S (t0), A (1)) selected in S1001. Is the largest evaluation value (in this embodiment, the evaluation value with the larger value) Q (S (t0), A (i)) (i = 0 or 1) is specified (S1002).

  The load agent 200 applies power consumption control (OFF control A (0) or ON control A () corresponding to Q (S (t0), A (i)) specified in S1002 to the load 20 to which the load agent 200 is attached. 1)) is performed (S1003).

  As described above, in the power supply system 1 of the present embodiment, each of the load agents 200 determines the power consumption amount of the load 20 to which the load agent 200 is attached, the generated power amount received from the generator agent 100, Based on the stored evaluation value, an evaluation value that maximizes the effect of supply and demand control is specified, and power consumption control corresponding to the specified evaluation value is performed on the load 20 to which the load is attached.

  For this reason, each of the load agents 200 can autonomously perform power consumption control on the load 20 to which the load agent 200 is attached. In addition, since each of the load agents 200 autonomously performs power consumption control based on the evaluation value stored by itself, the load agent 200 cannot receive the amount of generated power from all the generators 10 existing in the power supply system 1. However, supply and demand control of the power supply system 1 can be reliably performed.

<Evaluation value update process>
After performing the power consumption control, the load agent 200 updates the evaluation value management table 150 based on the generated power amount or the consumed power amount received from another agent (the generator agent 100 or the load agent 200).

  FIG. 11 is a flowchart for explaining processing (hereinafter referred to as evaluation value update processing S1100) related to the update of the evaluation value management table 150 performed by the load agent 200. The evaluation value update process S1100 is performed at any time after, for example, the own operation state management table 160 is updated (after the update process in S902 or S906 in FIG. 9).

  First, the load agent 200 calculates the regional requirement amount AR by summing the power amounts 712 (power generation amount and power consumption amount) of each record in the operation state management table 160 (S1101).

  Note that, in order to indicate the current state of the power supply system 1 as accurately as possible, the area update amount AR of the records registered in the operation state management table 160 has the last update date and time 753 older than the predetermined date and time. Items may be excluded from the basis for calculating the regional requirement amount AR.

  Next, the load agent 200 determines whether or not the calculated regional request amount AR is equal to or less than a predetermined threshold (S1102). If the calculated area request amount AR is equal to or less than the predetermined threshold (S1102: YES), the process proceeds to S1103. If the area request amount AR exceeds the predetermined threshold (S1102: NO), the process ends.

  In S1103, the load agent 200 calculates the evaluation value Q (S (t0), A (i)) specified in S1002 of FIG.

Evaluation value Q (S (t0), A (i)) = (1-α) Q (S (t0), A (i))
+ Α · [r (0) + γ · max_a (Q (S (t1), A (i))]
... (Formula 1)

  In the above equation, r (0) is a positive constant (hereinafter referred to as a reward value). Further, max_a (Q (S (t1), A (i)) is an evaluation value Q (S () of the OFF control A (0) in the current operation state S (t1) determined by the operation state management table 160. t1), A (0)) and the evaluation value Q (S (t1), A (1)) of the ON control A (1) in the current operating state S (t1). Γ is a weight for reflecting max_a (Q (S (t1), A (i)) in the evaluation value Q (S (t0), A (i)), and α is r (0) + γ. Max_a (Q (S (t1), A (i)) is a weight for reflecting the evaluation value Q (S (t0), A (i)).

  As described above, in the power supply system 1 of the present embodiment, the load agent 200 calculates the regional requirement amount AR based on the operation state after performing power consumption control corresponding to the specified evaluation value, When the regional requirement AR is improved, the stored evaluation value is updated in a direction in which the effect of supply and demand control increases. As described above, in the power supply system 1 of the present embodiment, the evaluation value is automatically updated based on the actual control result, so that the supply and demand control of the power supply system 1 can be appropriately and reliably performed. .

<Specific example>
FIG. 12 illustrates the power consumption control process S1000 illustrated in FIG. 10, the load agent table update process S900 illustrated in FIG. 9, and the evaluation value update process S1100 illustrated in FIG. FIG.

  In the figure, the frame indicated by reference numeral 121 is the state before the power consumption control process S1000 is performed. As shown in the figure, the load agent 200 (EV1) acquires the self-power consumption (0 kW) of the load 20 to which the load agent 200 (EV1) is attached, and the generator agent 100 (PV1) is attached. The other generated electric energy (5 kW) of the generator 10 and the other generated electric energy (3 kW) of the generator 10 to which the generator agent 100 (PV2) is attached are received.

  In the state indicated by reference numeral 121, the load agent 200 (EV1) first evaluates from the evaluation value management table 150 the evaluation values Q (S (0), A (0) of the OFF control A (0) in the current operating state S (0). )) = 0.4, and an evaluation value Q (S (0), A (1)) = 0.6 of the ON control A (1) in the operating state S (0) is selected (reference numeral 1201) (FIG. 10). Corresponding to S1001).

  Next, the load agent 200 (EV1) specifies an evaluation value Q (S (0), A (i)) having a larger value for the load 20 to which the load agent 200 is attached (S1002 in FIG. 10). The ON control A (1) that is the control corresponding to the identified evaluation value Q (S (0), A (1)) is performed (reference numeral 1202) (S1003 in FIG. 10).

  After performing the above ON control A (1), the load agent 200 (EV1) then causes the self-consumed power amount (-2 kW), the other generated power amount (5 kW) of the generator agent 100 (PV1), and the load agent. Another power generation amount (3 kW) of 200 (PV2) is acquired. In addition, the load agent 200 (EV1) includes other power generation amounts and other power consumption amounts (for example, PV3 = 5 kW, EV2 = −) of agents other than the generator agent 100 (PV1) and the generator agent 100 (PV2). (3 kW,...) Is also acquired (reference numeral 1203) (S902 or S906 in FIG. 9).

  Subsequently, the load agent 200 (EV1) calculates the regional requirement amount AR of the power supply system 1 as “5” based on the acquired self-power consumption amount, other generated power amount, and other power consumption amount (FIG. 11). S1101). In the example shown in FIG. 12, the regional requirement amount AR = PV1 (+5) + EV2 (+3) + EV1 (−2) + PV3 (5) + EV2 (−3) +... ++ 5, and a preset threshold value ( Here, 10) or less (in the case of YES in S1102 of FIG. 11), the evaluation value is updated (S1103 of FIG. 11) (reference numeral 1204).

  Here, the evaluation value Q (S (0), A (1)) is calculated as 0.7, and the load agent 200 (EV1) has the evaluation value Q (S (0), A ( 1)) is registered as 0.7 (ON evaluation value 613 in FIG. 6) (reference numeral 1206).

  By the way, the embodiment described above is for facilitating the understanding of the present invention, and does not limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.

  For example, the load agent 200 may perform the evaluation value update process S1300 shown in FIG. 13 instead of the evaluation value update process S1100 shown in FIG. As shown in the figure, the processes of S1301, S1302, and S1304 in the evaluation value update process S1300 are the same as those of S1101, S1102, and S1104 of the evaluation value update process S1100, but in S1302, the load agent 200 is When the regional requirement AR calculated in S1301 exceeds the threshold (S1302: NO), the evaluation value Q (S (t0), A (i)) is obtained according to the following equation 2 (S1303), and the evaluation value The contents of the management table 150 are updated to the contents of the obtained evaluation value Q (S (t0), A (i)) (S1305).

Evaluation value Q (S (t0), A (i)) = (1-α) Q (S (t0), A (i))
+ Α · [s (0) + γ · max_a (Q (S (t1), A (i))]
... (Formula 2)

  In Equation 2, s (0) is a negative constant (sanction value). max_a (Q (S (t1), A (i)), γ, and α are the same as in Equation 1.

  In this way, after performing power consumption control, the load agent 200 evaluates the power consumption control (Q (S (t0), A (i) if the regional request amount AR exceeds a predetermined threshold value. ))) Is reduced, the supply and demand control of the power supply system 1 can be more reliably performed.

DESCRIPTION OF SYMBOLS 1 Power supply system 10 Generator 20 Load 100 Generator agent 140 Operation state management table 150 Evaluation value management table 160 Operation state management table 200 Load agent S800 Generator agent table update process S900 Load agent table update process S1000 Power consumption control process S1100 Evaluation value update processing

Claims (5)

A control method for a power supply system configured to include one or more generators and one or more loads,
Each of the generators is provided with a generator agent, which is an information processing device having a wireless communication function,
A load agent, which is an information processing device having a wireless communication function, is attached to each of the loads,
The load agent performs power consumption control on the load to which the load agent is attached,
The generator agent acquires the amount of generated power of the generator to which it is attached, and transmits the acquired amount of generated power to the load agent that can communicate with itself,
The load agent acquires a power consumption amount of a load attached to the load agent, and transmits the acquired power consumption amount to another load agent capable of communicating with the load agent,
The load agent is
Corresponding to the combination of the operating state of the power supply system and the power consumption control determined by the combination of the power generation amount of one or more generators and the power consumption of one or more loads, the power consumption storing the evaluation value the a value indicating the effect of supply and demand control of a power supply system in the case of performing control,
Receives the amount of generated power sent from the generator agent that can communicate with itself,
Receiving the power consumption amount sent from another load agent capable of communicating with itself;
Among the evaluation value stored, the power generation amount of power received, the elected criticism value that corresponds to the operation state determined by the combination of the received said consumption amount, and the acquired consumed electric power amount,
Among the selected evaluation values, the evaluation value having the maximum effect of supply and demand control is specified, and the power consumption control corresponding to the specified evaluation value is performed on the load to which the device is attached ,
After the load agent performs the power consumption control,
Receives the amount of generated power sent from the generator agent that can communicate with itself,
Obtain the power consumption of the load attached to itself,
Based on the received power generation amount and the acquired power consumption amount, a regional requirement amount that is a value indicating a supply and demand difference of the power amount of the power supply system is calculated,
Determine whether the calculated regional demand is below a predetermined threshold,
A control method for a power supply system , wherein the specified evaluation value is updated in a direction in which the effect of the supply and demand control increases when the calculated regional demand is equal to or less than a predetermined threshold value . It is a control method of the electric power supply system according to claim 1 ,
After the load agent performs the power consumption control,
Receiving the power consumption amount sent from the load agent capable of communicating with itself;
Based on the received power generation amount, the acquired power consumption amount, and the received power consumption amount, a regional requirement amount that is a value indicating a difference in power supply and demand of the power supply system is calculated,
Determine whether the calculated regional demand is below a predetermined threshold,
The control method of the power supply system, wherein the specified evaluation value is updated in a direction in which the effect of the supply and demand control increases when the calculated regional demand is equal to or less than a predetermined threshold value. It is a control method of the electric power supply system according to claim 1,
After the load agent performs the power consumption control,
Receives the amount of generated power sent from the generator agent that can communicate with itself,
Obtain the power consumption of the load attached to itself,
Based on the received power generation amount and the acquired power consumption amount, a regional requirement amount that is a value indicating a supply and demand difference of the power amount of the power supply system is calculated,
Determine whether the calculated regional requirement amount exceeds a predetermined threshold,
The control method of the power supply system, wherein the specified evaluation value is updated in a direction in which the effect of the supply and demand control decreases when the calculated regional requirement amount exceeds a predetermined threshold value. It is a control method of the electric power supply system according to claim 1,
The power consumption control includes a control for stopping power consumption of the load to which the power supply is attached and a control for starting power consumption of the load to which the power supply is attached. Method. A power supply system configured to include one or more generators and one or more loads,
A generator agent, which is an information processing device having a wireless communication function, is attached to each of the generators,
Each of the loads is provided with a load agent which is an information processing device having a wireless communication function,
The load agent performs power consumption control on the load to which the load agent is attached,
The generator agent acquires the amount of generated power of the generator to which it is attached, and transmits the acquired amount of generated power to the load agent that can communicate with itself,
The load agent acquires a power consumption amount of a load attached to the load agent, and transmits the acquired power consumption amount to another load agent capable of communicating with the load agent,
The load agent is
Corresponding to the combination of the operating state of the power supply system and the power consumption control determined by the combination of the power generation amount of one or more generators and the power consumption of one or more loads, the power consumption storing the evaluation value the a value indicating the effect of supply and demand control of a power supply system in the case of performing control,
Receives the amount of generated power sent from the generator agent that can communicate with itself,
Receiving the power consumption amount sent from another load agent capable of communicating with itself;
Obtain the power consumption of the load attached to itself,
Among the evaluation value stored, the power generation amount of power received, the elected criticism value that corresponds to the operation state determined by the combination of the received said consumption amount, and the acquired consumed electric power amount,
Among the selected evaluation values, the evaluation value having the maximum effect of supply and demand control is specified, and the power consumption control corresponding to the specified evaluation value is performed on the load to which the device is attached ,
After the load agent performs the power consumption control,
Receives the amount of generated power sent from the generator agent that can communicate with itself,
Obtain the power consumption of the load attached to itself,
Based on the received power generation amount and the acquired power consumption amount, a regional requirement amount that is a value indicating a supply and demand difference of the power amount of the power supply system is calculated,
Determine whether the calculated regional demand is below a predetermined threshold,
When the calculated regional demand is equal to or less than a predetermined threshold, the specified evaluation value is updated in a direction in which the effect of the supply and demand control increases .

Images