JP5213909B2 - Power supply system control method and power supply system - Google Patents

Description

  The present invention relates to a method for controlling an electric power supply system and an electric power supply system, and more particularly to a technique for efficiently suppressing power flow fluctuations in an electric power system.

  Recently, power generation methods using natural energy such as solar power generators for household use have attracted attention, and it is expected that a large number of generators using natural energy will be connected to power systems such as commercial power systems in the future. ing. However, in the power generation method using natural energy, the output is likely to fluctuate depending on weather conditions and the like, and there is a concern about the influence (voltage fluctuation, frequency fluctuation) on the power system caused by such a power generation method.

  As a technique for preventing the influence on the power system, for example, in Patent Document 1, a plurality of transformers are connected to a high-voltage distribution line extending from a system power supply, and a low-voltage distribution line is connected to each transformer. In a low-voltage distribution system in which a large number of power consumers with distributed power sources that generate reverse power flow are connected to each low-voltage distribution line in a branch shape, the power consumers whose voltage increase due to reverse power flow of the distributed power source exceeds a specified value It is described that a switching switch for switching the contact point from the connection point to the end point is provided between the connection point with the low-voltage distribution line and the terminal point of another low-voltage distribution line adjacent to the low-voltage distribution line. .

  Patent Document 2 includes a plurality of distribution lines from a substation, a section switch connected to each distribution line, and an interconnected switch connected between the distribution lines. In the distribution system that supplies power to the connected load, the voltage and current at the management target point on each distribution line are monitored, and if the voltage at the management target point deviates from the specified voltage range, the voltage deviation Invert the open / close state of any of the interconnection switches connected to the distribution line to be processed, and improve the voltage deviation situation by reversing the open / close state of any of the segmented switches as necessary. A voltage management method is described.

  Patent Document 3 discloses a voltage deviation point by collecting the distribution system state data in which a plurality of distributed power sources are linked together and the operation data of these distributed power sources and estimating the distribution state of the distribution system voltage. When there is a voltage deviation point, the control value for the distributed power source linked to the distribution system is calculated, and the power flow status of the distribution system when multiple distributed power sources are operated with the calculated control value. And the voltage distribution of the power distribution system, calculate the control command value for the distributed power source to be controlled based on the calculated power flow status and voltage distribution, operate the distributed power source, and set the distribution system voltage within the proper range The power quality maintenance support method to be maintained is described.

JP 2008-199703 A JP 2009-65816 A JP 2007-288877 A

By the way, when the number of distributed power sources and loads connected to the power distribution system increases, the amount of communication between them increases, so the load of control processing increases, which may affect power supply and demand control. .
The present invention has been made in view of such a background, and an object thereof is to provide a power supply system and a control method for the power supply system that can efficiently suppress power flow fluctuations in a power system.

One of the present invention for achieving the above object is a control method of a power supply system including a first distribution line to which a plurality of generators and a plurality of loads are connected,
Attached to each of the generators is a generator agent that is an information processing device capable of obtaining a generator vicinity voltage value that is a voltage at a connection point of each of the first distribution lines,
A load agent, which is an information processing device capable of acquiring a load vicinity voltage value that is a voltage at a connection point of each of the first distribution lines, is attached to each of the loads,
The generator agent and the load agent connected to the same first distribution line can communicate with each other between the generator agents, between the load agents, and between the generator agent and the load agent. ,
The generator agent is:
Storing first voltage deviation information which is information indicating whether or not a voltage increase of the first distribution line has occurred;
When receiving a first voltage deviation signal, which is a signal indicating that a voltage increase has occurred in the first distribution line, the first voltage deviation information is updated to indicate that a voltage increase has occurred,
When receiving the first voltage deviation release signal, which is a signal indicating that no voltage rise has occurred in the first distribution line, the first voltage deviation information is updated to indicate that no voltage rise has occurred,
Obtain the generator vicinity voltage value from time to time,
When the generator vicinity voltage value exceeds a preset threshold value, a first voltage deviation transmission right signal that is a signal indicating that a right to transmit the first voltage deviation signal is being requested or acquired. , Transmitting to the other generator agent and the load agent, and waiting for reception of the first voltage deviation transmission right signal from the other generator agent and the load agent, and the first voltage within a predetermined time. When the deviation transmission right signal is not received, the stored first voltage deviation information is updated to indicate that a voltage increase has occurred, and the first voltage deviation signal is updated to the other generator agent and the load agent. To
The load agent is
Storing the first voltage deviation information;
Upon receiving the first voltage deviation signal, the first voltage deviation information is updated to indicate that a voltage increase has occurred,
When receiving the first voltage deviation cancellation signal, the first voltage deviation information is updated to indicate that no voltage increase has occurred,
Obtain the load near voltage value from time to time,
If the first voltage deviation information indicates that a voltage increase has occurred, and if the voltage value near the load exceeds a preset threshold value, the control right of the load attached to the first voltage deviation information is given. A first control right signal that is a request or acquisition signal is transmitted to the other load agent, and the reception of the first control right signal from the other load agent is awaited. When the first control right signal is not received within the time, the operation of the load attached thereto is started.

  As described above, in the present invention, the generator agent transmits the first voltage deviation signal indicating that a voltage rise has occurred in the first distribution line to the load agent, and the load agent receives the signal to operate the own load. Therefore, the rise of the distribution voltage in the first distribution line can be suppressed, and the tidal current fluctuation in the first distribution line can be suppressed. In addition, since the generator agent transmits the first voltage deviation signal to the load agent when it does not receive the first voltage deviation transmission right signal within a predetermined time, it prevents communication congestion related to the first voltage deviation signal. Can do. Further, since the load agent starts the operation of its own load when it does not receive the first control right signal within a predetermined time, it is possible to prevent a plurality of loads from starting the operation simultaneously. Over-control can be prevented.

  Another aspect of the present invention is a method for controlling the power supply system, wherein the load agent receives the voltage value near the load, and the first voltage deviation information indicates that a voltage increase has occurred. The load vicinity voltage value acquired by itself is less than or equal to the preset threshold value, and the load vicinity voltage value acquired by itself is greater than the received load vicinity voltage value, the load vicinity voltage A first load vicinity voltage value transmission right signal, which is a signal indicating that a value transmission right is being requested or acquired, is transmitted to the other load agent, and the first load from the other load agent is also transmitted. Waiting for reception of a near voltage value transmission right signal, and transmitting the load vicinity voltage value to the other load agent when the first load vicinity voltage value transmission right signal is not received within a predetermined time. To.

  As described above, in the present invention, when the load vicinity voltage value acquired by itself is larger than the load vicinity voltage value received from another load agent, the load agent transmits its own load vicinity voltage value to the other load agent. Therefore, among the load agents, the load agent having the highest load vicinity voltage value can transmit its own load vicinity voltage value.

Another one of the present invention is a method for controlling the power supply system, further comprising a second distribution line connected to a higher rank of the first distribution line and one or more of the first distribution lines branch,
Each of the second distribution lines is provided with a parent agent that is an information processing device capable of acquiring a higher-side voltage value that is a voltage at a connection point of each of the second distribution lines,
The parent agent includes a self-generator agent that is the generator agent attached to the generator connected to the first distribution line under the second distribution line to which the parent agent is attached. The load agent attached to the load connected to the first distribution line that is connected, and the other load agent can communicate with the other load agent,
The self-generator agent is:
When the voltage value near the generator exceeds a preset threshold value, the first voltage deviation transmission right signal is transmitted to the parent agent, and the first voltage deviation transmission right from the parent agent is transmitted. When waiting for signal reception and not receiving the first transmission right signal within a predetermined time, the stored first voltage deviation information is updated to indicate that a voltage rise has occurred, and the first voltage Send a deviation signal to the parent agent;
The parent agent is
Storing the first voltage deviation information;
Upon receiving the first voltage deviation signal, the first voltage deviation information is updated to indicate that a voltage increase has occurred,
When receiving the first voltage deviation cancellation signal, the first voltage deviation information is updated to indicate that no voltage increase has occurred,
Storing second voltage deviation information which is information indicating whether or not a voltage increase of the second distribution line has occurred;
When receiving a second voltage deviation signal, which is a signal indicating that a voltage increase has occurred in the second distribution line, the second voltage deviation information is updated to the effect that a voltage increase has occurred,
When receiving a second voltage deviation release signal, which is a signal indicating that no voltage rise has occurred in the second distribution line, the second voltage deviation information is updated to that no voltage rise has occurred,
The first voltage deviation information is a content indicating that no voltage increase has occurred, and the second voltage deviation information is a content indicating that a voltage increase has occurred, and the second distribution line of its own A second voltage deviation transmission right signal which is a signal indicating that a right to transmit the second voltage deviation signal is being requested or acquired when the upper voltage value which is a voltage at a connection point exceeds a threshold value. To the other parent agent and the self-load agent, and waits for the reception of the second voltage deviation transmission right signal from the other parent agent and the self-load agent. If the second voltage deviation transmission right signal is not received, the second voltage deviation signal is transmitted to the self-load agent;
The self-load agent is
Storing the second voltage deviation information;
Upon receiving the second voltage deviation signal, the second voltage deviation information is updated to indicate that a voltage increase has occurred,
When receiving the second voltage deviation cancellation signal, the second voltage deviation information is updated to indicate that no voltage increase has occurred,
If the second voltage deviation information indicates that a voltage increase has occurred and if the voltage value near the load exceeds a preset threshold value, the load of the load to which the self-load agent is attached A second control right signal, which is a signal indicating that a control right is being requested or acquired, is transmitted to the other load agent, and the reception of the second control right signal from the other load agent is awaited. When the second control right signal is not received within a predetermined time, the operation of the load attached thereto is started.

  As described above, in the present invention, the parent agent determines that the first distribution line has not increased in voltage, the second distribution line has increased in voltage, and its upper voltage value exceeds the threshold value. A two-voltage deviation signal is transmitted to the self-load agent. Since the self-load agent receives the second voltage deviation signal and starts the operation of the self-load, the self-load agent can suppress an increase in the distribution voltage in the second distribution line, and can suppress fluctuations in power flow in the second distribution line. In addition, when the parent agent does not receive the second voltage deviation transmission right signal within a predetermined time, the parent agent transmits the second voltage deviation signal to the self-load agent, thereby preventing communication congestion related to the second voltage deviation signal. Can do. In addition, since the self-load agent starts the operation of the self-load when the second control right signal is not received within a predetermined time, it is possible to prevent a plurality of self-loads from starting the operation at the same time. It is possible to prevent overload control.

Another aspect of the present invention is a method of controlling the power supply system, wherein the parent agent is
Receiving the upper voltage value,
The second voltage deviation information indicates that a voltage increase has occurred, and the higher-side voltage value, which is the voltage at the connection point of the second distribution line, is less than or equal to a threshold value, and When the acquired higher-side voltage value is larger than the received higher-side voltage value, the higher-side voltage value transmission right is a signal indicating that the right to transmit the higher-side voltage value is being requested or acquired. When a signal is transmitted to the other parent agent and the reception of the higher-side voltage value transmission right signal from the other parent agent is waited, and the higher-side voltage value transmission right signal is not received within a predetermined time. In addition, the upper voltage value is transmitted to the other parent agent.

  As described above, in the present invention, when the upper voltage value acquired by the parent agent is larger than the upper voltage value received from the other parent agent, the parent agent transmits its upper voltage value to the other parent agent. Therefore, the parent agent having the highest upper-side voltage value among the parent agents can transmit its own upper-side voltage value. In addition, when the parent agent does not receive the upper-side voltage value transmission right signal within a predetermined time, the upper-side voltage value is transmitted to another parent agent, so that communication congestion related to the upper-side voltage value can be prevented. it can.

  Another aspect of the present invention is a method for controlling the power supply system, wherein the self-load agent receives the voltage value near the load, and the second voltage deviation information indicates that a voltage increase has occurred. The load near voltage value acquired by itself is equal to or less than the preset threshold value, and the load near voltage value acquired by the self load agent is greater than the received load near voltage value. , Transmitting a second load vicinity voltage value transmission right signal, which is a signal indicating that the right to transmit the load vicinity voltage value is being requested or acquired, to the other self load agent and the other self load When waiting for reception of the second load vicinity voltage value transmission right signal from the agent and not receiving the second load vicinity voltage value transmission right signal within a predetermined time, the load vicinity voltage value is set to the other self A second control right signal, which is a signal indicating that the control right for the load to which the self-load agent is attached is being requested or acquired, and is transmitted to the other load agent. Waiting for the reception of the second control right signal from the other load agent, and starting the operation of the load attached thereto when the second control right signal is not received within a predetermined time. And

  Thus, in the present invention, when the load proximity voltage value acquired by the self load agent is larger than the load proximity voltage value received from another self load agent, the self load agent sets the self load load voltage value to another self load. Since it is transmitted to the agent, the self-load agent having the highest load vicinity voltage value among the self-load agents can transmit its own load vicinity voltage value. Then, the self-load agent having the highest load vicinity voltage value among the self-load agents can start the operation of its own load. Thereby, the raise of the distribution voltage in a 2nd distribution line can be suppressed, and the tidal current fluctuation in a 2nd distribution line can be suppressed. In addition, since the self-load agent starts the self-load operation when the second control right signal is not received within a predetermined time, it is possible to prevent a plurality of self-loads from starting the operation at the same time. Self-load over-control can be prevented.

  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 tidal current fluctuation | variation in an electric power grid | system can be suppressed efficiently.

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 10. FIG. 2 is a diagram illustrating a hardware configuration of a load agent 20. FIG. 2 is a diagram showing a hardware configuration of a parent agent 30. FIG. FIG. 3 is a diagram illustrating functions of a generator agent 10. It is a figure which shows the structure of the record of the data stored in the measured value database 151. FIG. 3 is a diagram illustrating functions of a load agent 20. It is a figure which shows the structure of the record of the data stored in the measured value database. FIG. 3 is a diagram showing functions of a parent agent 30. It is a figure which shows the structure of the record of the data stored in the measured value database. It is a flowchart explaining generator agent process S1100. It is a flowchart explaining the detail of voltage state acquisition process S1111. It is a flowchart explaining voltage deviation cancellation process S1122. It is a flowchart explaining load agent process S1400. It is a flowchart explaining the detail of voltage state acquisition process S1411. It is a flowchart explaining the detail of load operation start process S1442. It is a flowchart explaining parent agent process S1700. It is a flowchart explaining the detail of voltage state acquisition process S1711. It is a flowchart explaining the detail of 2nd voltage deviation information update process S1722. It is a flowchart explaining the detail of 2nd voltage deviation signal transmission process S1734. It is a flowchart explaining the detail of high-order side voltage value transmission process S1735. 18 is a flowchart illustrating details of transfer processing S1741. It is a figure explaining the specific example of the process in the electric power supply system.

  FIG. 1 shows a schematic configuration of a power supply system 1 described as an embodiment. As shown in the figure, the power supply system 1 is a plurality of first distribution lines 101 to which a generator 5 and a load 6 are connected, and one that supplies electric power from a substation or the like to each of the first distribution lines 101. The second distribution line 102 described above, and the transformer 51 interposed between the first distribution line 101 and the second distribution line 102 are included.

  The transformer 51 is, for example, a pole transformer or an underground transformer. The first distribution line 101 is, for example, a low-voltage distribution line provided on the consumer side of the commercial power system. The second distribution line 102 is, for example, a high-voltage distribution line that supplies electric power sent from a substation or the like to the low-voltage distribution line via the transformer 51 in a commercial power system.

  In the following description, a set including one of the first distribution lines 101, the generator 5 connected to the first distribution line 101, and the load 6 as elements is referred to as a first grid 71. In the present embodiment, it is assumed that the first grid 71 exists for each transformer 51.

  A set including one second distribution line 102 and all the first grids 71 existing below the second distribution line 102 is referred to as a second grid 72.

  The generator 5 is, for example, a generator (solar generator, hydroelectric generator, wind generator, etc.) that uses natural energy. The load 6 is, for example, a power storage load (battery of an electric vehicle (EV), a storage battery used for an electric vehicle or the like) or a heat storage load (such as a water heater or a commercial heat storage type air conditioner).

  In the following description, among the generators 5 connected to the first distribution line 101, the generator 5 of interest is referred to as a self-generator, and the generators 5 other than the self-generator are referred to as other generators. Called. Of the loads 6 connected to the first distribution line 101, the load 6 of interest is referred to as a self load, and the other loads 6 outside the self load are referred to as other loads.

  For each of the generators 5, a generator vicinity voltage value that is a voltage at the connection point of each first distribution line 101 (or in the vicinity thereof (a range in which a voltage that can be regarded as the same voltage as the connection point can be acquired)) is measured. An information processing apparatus (hereinafter, referred to as a generator agent 10) having a function to perform the above function is attached.

  Each of the loads 6 has a function of measuring a load vicinity voltage value that is a voltage at the connection point of each first distribution line 101 (or in the vicinity thereof (a range in which a voltage that can be regarded as the same voltage as the connection point can be acquired)). Is provided with an information processing apparatus (hereinafter referred to as a load agent 20).

  The transformer 51 measures an upper voltage value that is a voltage at a connection point of the second distribution line 102 of the transformer 51 (or in the vicinity thereof (a range in which a voltage that can be regarded as the same as the voltage at the connection point is obtainable)). An information processing apparatus having a function (hereinafter referred to as a parent agent 30) is attached.

  In each of the first distribution lines 101, the generator agent 10 and the load agent 20 are connected so as to communicate with each other. Each of the parent agents 30 attached to the second distribution line 102 is connected to be able to communicate with the generator agent 10 and the load agent in the first distribution line 101 under the second distribution line 102. . Further, the parent agents 30 are also connected so as to be able to communicate with each other. Communication between them is, for example, LAN, WAN, Internet, power line communication (PLC), dedicated line (CDT: Cyclic Digital data Transmission equipment), metal line, optical Fiber).

  In the following description, the generator agent 10 attached to the generator 5 connected to the first distribution line 101 under the second distribution line 102 to which the parent agent 30 is attached is referred to as the own generator. This is called an agent. The load agent 20 attached to the load 6 connected to the first distribution line 101 under the second distribution line 102 to which the parent agent 30 is attached is referred to as a self-load agent.

  FIG. 2 shows a hardware configuration of the generator agent 10. As shown in the figure, the generator agent 10 includes a CPU 11, a memory 12 such as a RAM / ROM, a storage device 13 such as a hard disk, an input device 14 such as a keyboard and a mouse, and a display device 15 such as a liquid crystal display. And a communication circuit 16, a clock circuit 17 configured to generate date and time information (time stamp) such as the current date and time, and a measurement circuit 18 that measures a voltage value near the generator. ing.

  FIG. 3 shows the hardware configuration of the load agent 20. As shown in the figure, the load agent 20 includes a CPU 21, a memory 22 such as a RAM / ROM, a storage device 23 such as a hard disk, an input device 24 such as a keyboard and a mouse, and a display device 25 such as a liquid crystal display. A communication circuit 26; a clock circuit 27 configured to use RTC or the like to generate date and time information (time stamp) such as the current date and time; a measurement circuit 28 that measures a voltage value near the load; and power supply to the load 6 And a control circuit 29 for controlling.

  FIG. 4 shows the hardware configuration of the parent agent 30. As shown in the figure, the parent agent 30 includes a CPU 31, a memory 32 such as a RAM / ROM, a storage device 33 such as a hard disk, an input device 34 such as a keyboard and a mouse, and a display device 35 such as a liquid crystal display. , A communication circuit 36, a timer circuit 37 that uses RTC or the like to generate date and time information (time stamp) such as the current date and time, and a measurement circuit 38 that measures a higher voltage value.

  FIG. 5 shows the function of the generator agent 10. As shown in the figure, the generator agent 10 includes a first voltage deviation information storage unit 111, a first voltage deviation signal reception unit 112, a first voltage deviation release signal reception unit 113, a generator vicinity voltage value acquisition unit 114, The first voltage deviation signal transmission unit 115, the first voltage deviation transmission right signal transmission unit 116, and the first voltage deviation transmission right signal reception unit 117 are provided. These functions are realized by the hardware of the generator agent 10 or by the CPU 11 of the generator agent 10 reading and executing a program stored in the memory 12 or the storage device 13.

  As shown in the figure, the generator agent 10 includes a measurement value database 151.

  Among the functions shown in FIG. 5, the first voltage deviation information storage unit 111 stores first voltage deviation information that is information indicating whether or not a voltage increase of the first distribution line 101 has occurred.

  The first voltage deviation signal receiving unit 112 receives a first voltage deviation signal that is a signal indicating that a voltage increase has occurred in the first distribution line 101.

  The first voltage deviation release signal receiving unit 113 receives a first voltage deviation release signal that is a signal indicating that no voltage increase has occurred in the first distribution line 101.

  The generator vicinity voltage value acquisition unit 114 acquires the generator vicinity voltage value measured by the measurement circuit 18 as needed, and stores the acquired generator vicinity voltage value in the measurement value database 151 in association with the measurement time (time stamp). To do.

  The first voltage deviation signal transmission unit 115 transmits the first voltage deviation signal.

  The first voltage deviation cancellation signal transmission unit 116 transmits a first voltage deviation cancellation signal.

  The first voltage deviation transmission right signal transmission unit 117 transmits a first voltage deviation transmission right signal which is a signal indicating that a right to transmit the first voltage deviation signal is being requested or acquired.

  The first voltage deviation transmission right signal receiving unit 118 receives the first voltage deviation transmission right signal.

  The first voltage deviation cancellation transmission right signal transmission unit 119 transmits a first voltage deviation cancellation transmission right signal which is a signal indicating that the right to transmit the first voltage deviation cancellation signal is being requested or acquired.

  The first voltage deviation cancellation transmission right signal receiving unit 120 receives the first voltage deviation cancellation transmission right signal.

  FIG. 6 shows the structure of a record of data stored in the measurement value database 151. As shown in the figure, this record includes items of a measurement value 1511 and an acquisition date 1512. Of these, the measurement value (generator vicinity voltage value) is set as the measurement value 1501. The acquisition date / time 1502 is set with the acquisition date / time (time stamp) of the measurement value.

  FIG. 7 shows the function of the load agent 20. As shown in the figure, the load agent 20 includes a first voltage deviation information storage unit 211, a first voltage deviation signal reception unit 212, a first voltage deviation release signal reception unit 213, a load vicinity voltage value acquisition unit 214, Control right signal transmission unit 215, first control right signal reception unit 216, load control unit 217, other load vicinity voltage value reception unit 218, load vicinity voltage comparison unit 219, first load vicinity voltage value transmission right transmission unit 220, first 1 load vicinity voltage value transmission right reception unit 221, load vicinity voltage value transmission unit 222, second voltage deviation information storage unit 223, second voltage deviation signal reception unit 224, second voltage deviation release signal reception unit 225, second control Each function of the right signal transmission unit 226, the second control right signal reception unit 227, the second load vicinity voltage value transmission right transmission unit 228, and the second load vicinity voltage value transmission right reception unit 229 is provided. These functions are realized by the hardware of the load agent 20 or by the CPU 21 of the load agent 20 reading and executing a program stored in the memory 22 or the storage device 23.

  As shown in the figure, the load agent 20 includes a measurement value database 251.

  Among the functions shown in FIG. 7, the first voltage deviation information storage unit 211 stores first voltage deviation information.

  The first voltage deviation signal receiving unit 212 receives the first voltage deviation signal.

  The first voltage deviation release signal receiving unit 213 receives the first voltage deviation release signal.

  The load vicinity voltage value acquisition unit 214 acquires the load vicinity voltage value measured by the measurement circuit 28 as needed, and stores the acquired load vicinity voltage value in the measurement value database 251 in association with the measurement time (time stamp).

  The first control right signal transmission unit 215 transmits a first control right signal that is a signal indicating that the control right of the load 6 to which the first control right signal (load agent 20) is attached is being requested or acquired.

  The first control right signal receiving unit 216 receives the first control right signal.

  The load control unit 217 uses the control circuit 29 to control the load 6 to which the load controller 20 is attached (load agent 20). The control of the load 6 is performed by starting or stopping power supply to the load 6, for example.

  The other load vicinity voltage value receiving unit 218 receives the load vicinity voltage value from the other load agent 20.

  The load vicinity voltage comparison unit 219 compares the load vicinity voltage value acquired by the load vicinity voltage value acquisition unit 214 with the load vicinity voltage value received by the other load vicinity voltage value reception unit 218.

  The first load vicinity voltage value transmission right transmission unit 220 transmits a first load vicinity voltage value transmission right signal that is a signal indicating that a right to transmit a load vicinity voltage value is being requested or acquired.

  The first load vicinity voltage value transmission right receiving unit 221 receives the first load vicinity voltage value transmission right signal.

  The load vicinity voltage value transmission unit 222 transmits the load vicinity voltage value.

  The second voltage deviation information storage unit 223 stores second voltage deviation information that is information indicating whether or not a voltage increase of the second distribution line 102 has occurred.

  The second voltage deviation signal receiving unit 224 receives a second voltage deviation signal that is a signal indicating that a voltage increase has occurred in the second distribution line 102.

  The second voltage deviation release signal receiving unit 225 receives a second voltage deviation release signal that is a signal indicating that no voltage increase has occurred in the second distribution line 102.

  The second control right signal transmission unit 226 transmits a second control right signal that is a signal indicating that the control right for the attached load 6 is being requested or acquired.

  The second control right signal receiving unit 227 receives the second control right signal.

  The second load vicinity voltage value transmission right transmission unit 228 transmits a second load vicinity voltage value transmission right signal, which is a signal indicating that a transmission right of the load vicinity voltage value is being requested or acquired.

  The second load vicinity voltage value transmission right receiving unit 229 receives the second load vicinity voltage value transmission right signal.

  FIG. 8 shows the configuration of data records stored in the measured value database 251. As shown in the figure, this record includes items of a measured value 2511 and an acquisition date 2512. Among these, the measurement value (near load voltage value) is set as the measurement value 2511. In the acquisition date 2512, the acquisition date (time stamp) of the measurement value is set.

  FIG. 9 shows the function of the parent agent 30. As shown in the figure, the parent agent 30 includes a first voltage deviation information storage unit 311, a first voltage deviation signal reception unit 312, a first voltage deviation release signal reception unit 313, a second voltage deviation information storage unit 314, 2 voltage deviation signal receiver 315, second voltage deviation release signal receiver 316, second voltage deviation signal transmitter 317, second voltage deviation release signal transmitter 318, second voltage deviation transmission right signal transmitter 319, second A voltage deviation transmission right signal receiving unit 320, a second voltage deviation canceling transmission right signal transmitting unit 321, a second voltage deviation canceling transmission right signal receiving unit 322, an upper voltage value obtaining unit 331, another upper voltage value receiving unit 332, The upper side voltage value comparison unit 333, the upper side voltage value transmission right signal transmission unit 334, the upper side voltage value transmission right signal reception unit 335, and the upper side voltage value transmission unit 336 are provided. These functions are realized by the hardware of the parent agent 30 or by the CPU 31 of the parent agent 30 reading and executing a program stored in the memory 32 or the storage device 33.

  As shown in the figure, the parent agent 30 includes a measurement value database 351.

  Among the functions shown in FIG. 9, the first voltage deviation information storage unit 311 stores the first voltage deviation information.

  The first voltage deviation signal receiving unit 312 receives the first voltage deviation signal.

  The first voltage deviation release signal receiving unit 313 receives the first voltage deviation release signal.

  The second voltage deviation information storage unit 314 stores second voltage deviation information that is information indicating whether or not the voltage of the second distribution line 102 has increased.

  The second voltage deviation signal receiving unit 315 receives a second voltage deviation signal that is a signal indicating that a voltage increase has occurred in the second distribution line 102.

  The second voltage deviation release signal receiving unit 316 receives a second voltage deviation release signal that is a signal indicating that no voltage rise has occurred in the second distribution line 102.

  The second voltage deviation signal transmission unit 317 transmits a second voltage deviation signal.

  The second voltage deviation cancellation signal transmission unit 318 transmits a second voltage deviation cancellation signal.

  The second voltage deviation transmission right signal transmission unit 319 transmits a second voltage deviation transmission right signal which is a signal indicating that a right to transmit the second voltage deviation signal is being requested or acquired.

  The second voltage deviation transmission right signal receiving unit 320 receives the second voltage deviation transmission right signal.

  The second voltage deviation cancellation transmission right signal transmission unit 321 transmits a second voltage deviation cancellation transmission right signal which is a signal indicating that the right to transmit the second voltage deviation cancellation signal is being requested or acquired.

  The second voltage deviation cancellation transmission right signal receiving unit 322 receives the second voltage deviation cancellation transmission right signal.

  The upper voltage value acquisition unit 331 acquires the upper voltage value measured by the measurement circuit 38 and stores the acquired upper voltage value in the measurement value database 351 in association with the measurement time (time stamp).

  The other upper voltage value receiving unit 332 receives the upper voltage value from the other parent agent 30.

  The higher voltage value comparison unit 333 compares the higher voltage value acquired by the higher voltage value acquisition unit 331 with the higher voltage value received by the other higher voltage value reception unit 332.

  The higher-side voltage value transmission right signal transmission unit 334 transmits an upper-side voltage value transmission right signal that is a signal indicating that the transmission right of the upper-side voltage value is being requested or acquired.

  The upper voltage value transmission right signal receiving unit 335 receives the upper voltage value transmission right signal.

  The upper voltage value transmission unit 336 transmits the upper voltage value.

  FIG. 10 shows the structure of data records stored in the measured value database 351. As shown in the figure, this record includes items of a measured value 3511 and an acquisition date 3512. Among these values, a measured value (upper voltage value) is set as the measured value 3511. In the acquisition date 3512, the acquisition date (time stamp) of the measurement value is set.

<Processing of generator agent 10>
FIG. 11 is a flowchart illustrating a process performed by the generator agent 10 (hereinafter referred to as a generator agent process S1100). Hereinafter, the generator agent processing S1100 will be described with reference to FIG.

  As shown in the figure, the generator agent 10 acquires a voltage state of a first distribution line 101 (hereinafter referred to as a self-distribution line) connected to the generator 5 to which the generator agent 10 is attached. (Hereinafter, referred to as voltage state acquisition processing S1111) is performed (S1111). Details of the voltage state acquisition processing S1111 will be described later.

  The generator agent 10 determines the content indicated by the first voltage deviation information (S1112). When the first voltage deviation information indicates that the voltage of the self-distributed line has increased (S1112: YES), the process returns to S1111 and indicates that the voltage of the self-distributed line has not increased. (S1112: NO) The process proceeds to S1113.

  In S1113, the generator agent 10 measures and acquires the generator vicinity voltage value Vn1. Next, the generator agent 10 determines whether or not the acquired Vn1 exceeds a threshold value a (for example, 107 V). If it exceeds (S1114: YES), the process proceeds to S1115, and if it does not exceed (S1114: NO) Return to S1111.

  In S1115, the generator agent 10 determines whether or not the first voltage deviation transmission right signal is received. When the first voltage deviation transmission right signal is received (S1115: YES), after waiting for a predetermined time (S1119), the process returns to S1111. If the first voltage deviation transmission right signal has not been received (S1115: NO), the process proceeds to S1116.

  In S1116, the generator agent 10 transmits the first voltage deviation transmission right signal to the other generator agent 10 and the load agent 20 in the self-distributed power line. The generator agent 10 waits for reception of the first voltage deviation transmission right signal (S1117). When the generator agent 10 receives the first voltage deviation transmission right signal (S1118: YES), the generator agent 10 waits for a predetermined time (S1119) and returns to S1111. If the first voltage deviation transmission right signal has not been received (S1118: NO), the first voltage deviation information is updated to the effect that the voltage of the self-distributed line has increased (S1120). The generator agent 10 transmits a first voltage deviation signal to the other generator agent 10 and the load agent 20 in the self-distributed power line (S1121).

  The generator agent 10 performs a process of updating the first voltage deviation information to the effect that the voltage increase of the self-distributed line has not occurred (hereinafter referred to as a voltage deviation canceling process S1122). Details of the voltage deviation cancellation processing S1122 will be described later. Thereafter, the process returns to S1111.

  FIG. 12 is a flowchart for explaining details of the voltage state acquisition process S1111. Hereinafter, the voltage state acquisition process S1111 will be described with reference to FIG.

  As shown in the figure, the generator agent 10 determines whether or not a first voltage deviation signal is received (S1211). When the first voltage deviation information is received (S1211: YES), the process proceeds to S1212. When the first voltage deviation information is not received (S1211: NO), the process proceeds to S1213.

  In S1212, the generator agent 10 updates the first voltage deviation information to the effect that the voltage of the self-distributed line has risen.

  In S1213, the generator agent 10 determines whether or not the first voltage deviation release signal is received. If the first voltage deviation release signal has been received (S1213: YES), the process proceeds to S1214. If not received (S1213: NO), the process proceeds to S1112 in FIG.

  In S1214, the generator agent 10 updates the first voltage deviation information to the effect that the voltage increase of the self-distributed electric line has not occurred. Thereafter, the process proceeds to S1112 in FIG.

  FIG. 13 is a flowchart for explaining the voltage deviation canceling process S1122. Hereinafter, the voltage deviation cancellation processing S1122 will be described with reference to FIG.

  As shown in the figure, the generator agent 10 measures and acquires the generator vicinity voltage value Vn1 (S1311). The generator agent 10 returns to S1311 if the acquired Vn1 exceeds a threshold value a (for example, 107V) (S1312: YES), and proceeds to S1313 if not (S1312: NO).

  In S1313, the generator agent 10 determines whether or not the first voltage deviation cancellation transmission right signal is received. When the first voltage deviation release transmission right signal is received (S1313: YES), after waiting for a predetermined time (S1317), the process returns to S1111 of FIG. If the first voltage deviation cancellation transmission right signal has not been received (S1313: NO), the process proceeds to S1314.

  In S1314, the generator agent 10 transmits the first voltage deviation release transmission right signal to the other generator agent 10 and the load agent 20 in the self-distributed power line. Next, the generator agent 10 waits for the reception of the first voltage deviation release right signal (S1315). When the generator agent 10 receives the first voltage deviation release right signal (S1316: YES), the generator agent 10 waits for a predetermined time (S1317), and then returns to S1111 in FIG. If the first voltage deviation cancellation transmission right signal has not been received (S1316: NO), the first voltage deviation cancellation information is updated so that the voltage of the self-distributed line has not increased (S1318). The generator agent 10 transmits the first voltage deviation release signal to the other generator agent 10 and the load agent 20 in the self-distributed electric wire (S1319). Thereafter, the process returns to S1111 in FIG.

<Processing of load agent 20>
FIG. 14 is a flowchart for explaining processing performed by the load agent 20 (hereinafter referred to as load agent processing S1400). Hereinafter, the load agent processing S1100 will be described with reference to FIG.

  As shown in the figure, the load agent 20 acquires a voltage state of a first distribution line 101 (hereinafter referred to as a self-distribution line) connected to a load 6 to which the load agent 20 is attached (hereinafter referred to as a self-distribution line). (Referred to as voltage state acquisition processing S1411) (S1411). Details of S1411 will be described later.

  The load agent 20 determines the content indicated by the first voltage deviation information (S1412). When the first voltage deviation information indicates that the voltage of the self-distributed line has risen (S1412: YES), the process proceeds to S1413, and indicates that the voltage of the self-distributed line has not risen (S1412: NO), the process proceeds to S1441.

  In S1413, the load agent 20 determines whether or not the own load is operating. If it is operating (S1413: operating), the process returns to S1411, and if it is stopped (S1413: stopping), the process proceeds to S1414.

  In S1414, the load agent 20 measures and acquires the load vicinity voltage value Vn2. Subsequently, the load agent 20 proceeds to S1416 if the acquired Vn2 exceeds a threshold value a (for example, 107V) (S1415: YES), and proceeds to S1431 if not (S1415: NO).

  In S1416, the load agent 20 determines whether or not the first control right signal is received. When the first control right is received (S1416: YES), after waiting for a predetermined time (S1417), the process returns to S1411. If the first control right signal has not been received (S1416: NO), the process proceeds to S1421.

  In S1421, the load agent 20 transmits the first control right signal to the load agent 20 in the self-distributed power line. The load agent 20 waits for reception of the first control right signal for a predetermined time (S1422). When receiving the first control right signal (S1423: YES), the load agent 20 waits for a predetermined time (S1417) and returns to S1411. When the first control right signal has not been received (S1423: NO), the load agent 20 starts the operation of its own load (S1424). Thereafter, the process returns to S1411.

  In S1431, the load agent 20 determines whether or not the load vicinity voltage value Vo2 is received from another load agent 20. If the load vicinity voltage value Vo2 has been received (S1431: YES), the process proceeds to S1442, and if not received (S1431: NO), the process proceeds to S1432.

  In S1432, the load agent 20 determines whether or not the load vicinity voltage value Vn2 acquired in S1414 exceeds the load vicinity voltage value Vo2 received in S1431. When exceeding (S1432: YES), the process proceeds to S1433, and when Vn2 is equal to or less than Vo2 (S1432: NO), the process returns to S1411.

  In S <b> 1433, the load agent 20 checks whether or not the first load vicinity voltage value transmission right signal is received from another load agent 20. When the first load vicinity voltage value transmission right signal is received (S1433: YES), after waiting for a predetermined time (S1451), the process proceeds to S1411. When the first load vicinity voltage value transmission right signal is not received (S1433: NO), the process proceeds to S1434.

  In S1434, the load agent 20 transmits the first load vicinity voltage value transmission right signal to the other load agents 20 in the self-distributed power line. The load agent 20 waits for a predetermined time to receive the first load vicinity voltage value transmission right signal (S1435). When receiving the first load vicinity voltage value transmission right signal (S1436: YES), the load agent 20 waits for a predetermined time (S1451) and returns to S1411. When the first load vicinity voltage value transmission right signal has not been received (S1436: NO), the process proceeds to S1437.

  In S1437, the load agent 20 transmits the load vicinity voltage value Vn2 to another load agent 20 in the self-distributed electric wire.

  The load agent 20 determines whether or not the generator vicinity voltage value Vo2 is received from another load agent 20 in the self-distributed electric wire (S1438). If Vo2 has been received (S1438: YES), the process returns to S1411. If Vo2 has not been received (S1438: NO), the process proceeds to S1439.

  In S1439, the load agent 20 determines whether or not a predetermined time has elapsed since S1437. If the predetermined time has elapsed (S1439: YES), the process proceeds to S1416. If the predetermined time has not elapsed (S1439: NO) Return to S1438.

  In S1441, the load agent 20 determines the content indicated by the second voltage deviation information. When the second voltage deviation information indicates that a voltage increase has occurred in the second upper distribution line 102 (hereinafter referred to as the own upper distribution line) of the upper distribution line (S1441: YES), S1442. If it is shown that no voltage increase has occurred in the own upper distribution line (S1441: NO), the process returns to S1411.

  In S1442, the load agent 20 performs a process for starting the operation of its own load (hereinafter referred to as a load operation start process S1442). Details of the load operation start processing S1442 will be described later. Thereafter, the process returns to S1411.

  FIG. 15 is a flowchart for explaining the details of the voltage state acquisition process S1411. Hereinafter, the voltage state acquisition process S1411 will be described with reference to FIG.

  As shown in the figure, the load agent 20 determines whether or not the first voltage deviation signal is received (S1511). When the first voltage deviation information is received (S1511: YES), the process proceeds to S1512. When the first voltage deviation information is not received (S1511: NO), the process proceeds to S1513.

  In S1512, the load agent 20 updates the first voltage deviation information to the effect that the voltage of the self-distributed line has risen.

  In S1513, the load agent 20 determines whether or not the first voltage deviation release signal is received. If the first voltage deviation release signal has been received (S1513: YES), the process proceeds to S1514. If not received (S1513: NO), the process proceeds to S1412 in FIG.

  In S1514, the load agent 20 updates the first voltage deviation information to the effect that the voltage increase of the self-distributed line has not occurred. Thereafter, the process proceeds to S1412 in FIG.

  Further, the load agent 20 determines whether or not the second voltage deviation signal is received (S1521). If the second voltage deviation information has been received (S1521: YES), the process proceeds to S1522, and if not received (S1521: NO), the process proceeds to S1523.

  In S1522, the load agent 20 updates the second voltage deviation information to the effect that a voltage increase has occurred in its own upper distribution line.

  In S1523, the load agent 20 determines whether or not the second voltage deviation release signal is received. If the second voltage deviation release signal has been received (S1523: YES), the process proceeds to S1524. If not received (S1523: NO), the process proceeds to S1412 in FIG.

  In S1524, the load agent 20 updates the second voltage deviation information to the effect that no voltage increase has occurred in its own upper distribution line. Thereafter, the process proceeds to S1412 in FIG.

  FIG. 16 is a flowchart for explaining the details of the load operation start process S1442. Hereinafter, the load operation start process S1442 will be described with reference to FIG.

  As shown in the figure, the load agent 20 determines whether or not the own load is operating. If it is operating (S1611: operating), the process returns to S1411 of FIG. 14, and if it is stopped (S1611: stopped), the process proceeds to S1612.

  In S1612, the load agent 20 measures and acquires the load vicinity voltage value Vn2. The load agent 20 proceeds to S1614 if the acquired Vn2 exceeds a threshold value a (for example, 107V) (S1613: YES), and proceeds to S1641 if not (S1613: NO).

  In S1614, the load agent 20 determines whether or not the second control right signal is received. If the second control right has been received (S1614: YES), after waiting for a predetermined time (S1615), the process returns to S1411 in FIG. If the second control right signal has not been received (S1614: NO), the process proceeds to S1621.

  In S1621, the load agent 20 transmits the second control right signal to another load agent 20. The load agent 20 waits for reception of the second control right signal for a predetermined time (S1622). When receiving the second control right signal (S1623: YES), the load agent 20 waits for a predetermined time (S1615) and returns to S1411 in FIG. When the second control right signal is not received (S1623: NO), the load agent 20 starts its own load operation (S1624). Thereafter, the process returns to S1411.

  In S1641, the load agent 20 determines whether or not the load vicinity voltage value Vo2 is received. When the load vicinity voltage value Vo2 is received (S1641: YES), the process proceeds to S1642, and when not received (S1641: NO), the process proceeds to S1643.

  In S1642, the load agent 20 determines whether or not the load vicinity voltage value Vn2 acquired in S1612 exceeds the load vicinity voltage value Vo2 received in S1641, and if it exceeds (S1642: YES), the process proceeds to S1643. When Vn2 is equal to or lower than Vo2 (S1642: NO), the process returns to S1411 in FIG.

  In S1643, the load agent 20 checks whether or not the second load vicinity voltage value transmission right signal is received. When the second load vicinity voltage value transmission right signal is received (S1643: YES), after waiting for a predetermined time (S1651), the process proceeds to S1411 in FIG. When the second load vicinity voltage value transmission right signal is not received (S1643: NO), the process proceeds to S1644.

  In S1644, the load agent 20 transmits the second load vicinity voltage value transmission right signal to the other load agents 20 in the first distribution line 101 under its own upper distribution line. The load agent 20 waits for reception of the second load vicinity voltage value transmission right signal for a predetermined time (S1645). When receiving the second load vicinity voltage value transmission right signal (S1646: YES), the load agent 20 waits for a predetermined time (S1651) and returns to S1411 in FIG. When the second load vicinity voltage value transmission right signal is not received (S1646: NO), the process proceeds to S1647.

  In S1647, the load agent 20 transmits the load vicinity voltage value Vn2 to the other load agents 20 in the first distribution line 101 under its own upper distribution line.

  The load agent 20 determines whether or not the generator vicinity voltage value Vo2 is received (S1648). If Vo2 is received (S1648: YES), the process returns to S1411 of FIG. 14, and if Vo2 is not received (S1648: NO), the process proceeds to S1649.

  In S1649, the load agent 20 determines whether or not a predetermined time has elapsed since S1647. If the predetermined time has elapsed (S1649: YES), the process proceeds to S1614. If the predetermined time has not elapsed (S1649: NO) Return to S1648.

<Processing of parent agent 30>
FIG. 17 is a flowchart for explaining processing performed by the parent agent 30 (hereinafter referred to as parent agent processing S1700). Hereinafter, the parent agent process S1700 will be described with reference to FIG.

  As shown in the figure, the parent agent 30 performs a process of acquiring the voltage state of the own distribution line and the own upper distribution line (hereinafter referred to as voltage state acquisition process S1711). Details of the voltage state acquisition processing S1711 will be described later.

  The parent agent 30 determines the content indicated by the first voltage deviation information (S1712). When the first voltage deviation information indicates that the voltage of the self-distributed line has risen (S1712: YES), the process proceeds to S1713 and indicates that the voltage of the self-distributed line has not risen (S1712: NO), the process proceeds to S1731.

  In S1713, the parent agent 30 waits for reception of the first voltage deviation release signal for a predetermined time. When the first voltage deviation release signal is received (S1713: YES), the process returns to S1711. If the first voltage deviation release signal has not been received (S1713: NO), the process proceeds to S1721.

  In S1721, the parent agent 30 determines the content indicated by the second voltage deviation information. When the second voltage deviation information indicates that the voltage of the self-distributed line has risen (S1721: YES), the process proceeds to S1722, and indicates that the voltage increase of the self-distributed line has not occurred. (S1721: NO) Return to S1711.

  In S1722, the parent agent 30 performs a process of updating the second voltage deviation information (hereinafter referred to as a second voltage deviation information update process S1722). Details of the second voltage deviation information update processing S 1722 will be described later. Thereafter, the process returns to S1711.

  In S1731, the parent agent 30 determines the content indicated by the second voltage deviation information. When the second voltage deviation information indicates that the own upper distribution line has a voltage increase (S1731: YES), the process proceeds to S1732, and indicates that the own upper distribution line has not generated a voltage increase. In the case (S1731: NO), the process returns to S1711.

  In S1732, the parent agent 30 measures and acquires the higher voltage value Vn3. The parent agent 30 determines whether or not the acquired upper voltage value Vn3 exceeds a threshold value (for example, 107 V) (S1733). When Vn3 exceeds the threshold value (S1733: YES), the process proceeds to S1734. When it is below the threshold (S1733: NO), the process proceeds to S1735.

  In S1734, the parent agent 30 performs a process for transmitting the second voltage deviation signal (hereinafter referred to as a second voltage deviation signal transmission process S1734). Details of the second voltage deviation signal transmission processing S1734 will be described later. Thereafter, the process returns to S1711.

  In S1735, the parent agent 30 performs a process of transmitting the higher voltage value (hereinafter referred to as an upper voltage value transmission process S1735). Details of the upper voltage value transmission processing S1735 will be described later. Thereafter, the process returns to S1711.

  Further, the parent agent 30 performs a process of transferring the first control right signal and the second control right signal (hereinafter referred to as transfer process S1741). Details of the transfer process S1741 will be described later.

  FIG. 18 is a flowchart for explaining the details of the voltage state acquisition processing S1711. Hereinafter, the voltage state acquisition process S1711 will be described with reference to FIG.

  As shown in the figure, the parent agent 30 determines whether or not the first voltage deviation signal is received (S1811). If the first voltage deviation information has been received (S1811: YES), the process proceeds to S1812. If not received (S1811: NO), the process proceeds to S1813.

  In S1812, the parent agent 30 updates the first voltage deviation information to the effect that the voltage of the self-distributed line has risen.

  In S1813, the parent agent 30 determines whether or not the first voltage deviation release signal is received. If the first voltage deviation release signal has been received (S1813: YES), the process proceeds to S1814. If not received (S1813: NO), the process proceeds to S1712 in FIG.

  In S1814, the parent agent 30 updates the first voltage deviation information to the effect that the voltage increase of the self-distributed electric line has not occurred. Thereafter, the process proceeds to S1712 in FIG.

  Further, the parent agent 30 determines whether or not the second voltage deviation signal is received (S1821). If the second voltage deviation information has been received (S1821: YES), the process proceeds to S1822, and if not received (S1821: NO), the process proceeds to S1823.

  In S1822, the parent agent 30 updates the second voltage deviation information to the effect that the own higher-level distribution line has a voltage increase.

  In S1823, the parent agent 30 determines whether or not a second voltage deviation release signal has been received. If the second voltage deviation release signal has been received (S1823: YES), the process proceeds to S1824. If not received (S1823: NO), the process proceeds to S1712 in FIG.

  In S1824, the parent agent 30 updates the second voltage deviation information to the effect that the own higher-level distribution line has not increased in voltage. Thereafter, the process proceeds to S1712 in FIG.

  FIG. 19 is a flowchart for explaining the details of the second voltage deviation information update processing S 1722. Hereinafter, the second voltage deviation information update process S 1722 will be described with reference to FIG.

  As shown in the figure, the parent agent 30 determines whether or not the second voltage deviation transmission right signal has been received (S1911). When the second voltage deviation transmission right signal is received (S1911: YES), after waiting for a predetermined time (S1915), the process returns to S1711 of FIG. If the second voltage deviation transmission right signal has not been received (S1911: NO), the process proceeds to S1912.

  In S <b> 1912, the parent agent 30 transmits the second voltage deviation signal to the other parent agent 30. After waiting for a predetermined time (S1913), the parent agent 30 determines whether or not the second voltage deviation transmission right signal is received (S1914). When the second voltage deviation transmission right signal is received (S1914: YES), after waiting for a predetermined time (S1915), the process returns to S1711 of FIG. If the second voltage deviation transmission right signal has not been received (S1914: NO), the process proceeds to S1916.

  In S1916, the parent agent 30 updates the second voltage deviation information to the effect that the self-distributed distribution line has a voltage increase. The parent agent 30 transmits the second voltage deviation signal to the other parent agent 30 (S1917).

  Next, the parent agent 30 determines whether or not the second voltage deviation cancellation signal is received (S1918). When the second voltage deviation release signal is received (S1918: YES), the process proceeds to S1919. If the second voltage deviation release signal has not been received (S1918: NO), the process returns to S1918.

  In S1919, the parent agent 30 determines whether or not the second voltage deviation cancellation transmission right signal is received. If the second voltage deviation cancellation transmission right signal has been received (S1919: YES), the process proceeds to S1923, and if the second voltage deviation cancellation transmission right signal has not been received (S1919: NO), the process proceeds to S1920.

  In S 1920, the parent agent 30 transmits a second voltage deviation release signal to the other parent agent 30. After waiting for a predetermined time (S1921), the parent agent 30 determines whether or not the second voltage deviation canceling transmission right signal is received (S1922). When the second voltage deviation cancel transmission right signal is received (S1922: YES), after waiting for a predetermined time (S1923), the process returns to S1711 of FIG. If the second voltage deviation cancellation transmission right signal has not been received (S1922: NO), the process proceeds to S1924.

  In S1924, the parent agent 30 updates the second voltage deviation information to the effect that the self-upper distribution line has not increased in voltage. The parent agent 30 transmits the second voltage deviation release signal to the other parent agent 30 (S1925). Thereafter, the process returns to S1711 of FIG.

  FIG. 20 is a flowchart illustrating details of the second voltage deviation signal transmission process S1734. Hereinafter, the second voltage deviation signal transmission process S1734 will be described with reference to FIG.

  As shown in the figure, the parent agent 30 determines whether or not the second voltage deviation transmission right signal is received (S2011). When the second voltage deviation transmission right signal is received (S2011: YES), after waiting for a predetermined time (S2015), the process returns to S1711 of FIG. If the second voltage deviation transmission right signal has not been received (S2011: NO), the process proceeds to S2012.

  In S2012, the parent agent 30 transmits the second voltage deviation transmission right signal to the other parent agent 30 and the self-load agent. After waiting for a predetermined time (S2013), the parent agent 30 determines whether or not the second voltage deviation transmission right signal has been received (S2014). When the second voltage deviation transmission right signal is received (S2014: YES), after waiting for a predetermined time (S2015), the process returns to S1711 of FIG. When the second voltage deviation transmission right signal has not been received (S2014: NO), the process proceeds to S2016.

  In S2016, the parent agent 30 transmits the second voltage deviation signal to the self-load agent.

  FIG. 21 is a flowchart for explaining the details of the higher-side voltage value transmission processing S1735. Hereinafter, the upper voltage value transmission processing S1735 will be described with reference to FIG.

  As shown in the figure, the parent agent 30 determines whether or not the higher voltage value Vo3 is received from the other parent agent 30 (S2111). If the higher voltage value Vo3 is received (S2111: YES), the process proceeds to S2112. If not received (S2111: NO), the process proceeds to S2113.

  In S2112, the parent agent 30 determines whether or not the higher voltage value Vn3 acquired in S1732 of FIG. 17 exceeds the higher voltage value Vo3 received in S2111. If Vn3 exceeds Vo3 (S2112: YES), the process proceeds to S2113. If Vn3 is equal to or less than Vo3 (S2112: NO), the process returns to S1711 in FIG.

  In S <b> 2113, the parent agent 30 determines whether or not an upper-side voltage value transmission right signal has been received. When the higher-side voltage value transmission right signal is received (S2113: YES), after waiting for a predetermined time (S2121), the process returns to S1711 of FIG. When the upper voltage value transmission right signal has not been received (S2113: NO), the parent agent 30 transmits the upper voltage value transmission right signal to the other parent agent 30 (S2114).

  After waiting for a predetermined time (S2115), the parent agent 30 determines whether or not an upper-side voltage value transmission right signal has been received (S2116). When the higher-side voltage value transmission right is received (S2116: YES), after waiting for a predetermined time (S2121), the process returns to S1711 of FIG. If the higher-side voltage value transmission right has not been received (S2116: NO), the process proceeds to S2117.

  In S2117, the parent agent 30 transmits the higher-side voltage value Vn3 to the other parent agent 30. The parent agent 30 determines whether or not the higher voltage value Vo3 is received from the other parent agent 30 (S2118). If the higher voltage value Vo3 has been received (S2118: YES), the process returns to S1711 in FIG. If the higher voltage value Vo3 has not been received (S2118: NO), the process proceeds to S2119.

  In S2119, the parent agent 30 determines whether or not a predetermined time has elapsed since S2117. If the predetermined time has elapsed (S2119: YES), the process proceeds to S1734 in FIG. 17, and if the predetermined time has not elapsed. The process returns to S2118.

  FIG. 22 is a flowchart illustrating details of the transfer process S1741. Hereinafter, transfer processing S1741 will be described with reference to FIG.

  As shown in the figure, the parent agent 30 determines whether or not the first control right signal and the second control right signal are received (S2211). When the first control right signal or the second control right signal is received (S2211: YES), the process proceeds to S2212, and when neither the first control right signal nor the second control right signal is received (S2212: NO) Return to S1711 in FIG.

  In S2212, the parent agent 30 determines whether or not the received control right signal is the first control right signal. If the received control right signal is the first control right signal (S2212: YES), the parent agent 30 proceeds to S2213. If the received control right signal is not the first control right signal (S2212: NO), the process proceeds to S2214. move on.

  In S2213, the parent agent 30 transfers the received first control right signal to the load agent 20 under its control. Thereafter, the process returns to S1711 of FIG.

  In S2214, the parent agent 30 transfers the received second control right signal to the load agent 20 and other parent agents 30 under its control. Thereafter, the process returns to S1711 of FIG.

  FIG. 23 is a diagram illustrating a specific example of processing in the power supply system 1 described above. Hereinafter, specific processing in the power supply system 1 will be described with reference to FIG.

  As shown in the figure, a generator 5 (1), a load 6 (1), and a load 6 (2) are connected to the first distribution line 101 (1). The generator 5 (1) has a generator agent 10 (1) (not shown), the load 6 (1) has a load agent 20 (1) (not shown), and the load 6 (2) has a load agent 20 (2). ) (Not shown). A transformer 51 (1) and a transformer 51 (2) are connected to the second distribution line 102 to which the first distribution line 101 (1) is connected, and the transformer 51 (1) has A parent agent 30 (2) (not shown) is attached to the parent agent 30 (1) (not shown) and the transformer 51 (2), respectively.

  The generator agent 10 (1) measures and acquires the generator vicinity voltage value Vn1 (108V) (S2311). Since the acquired Vn1 is larger than the threshold value (107V), the generator agent 10 (1) updates the first voltage deviation information to the effect that the self-distributed power line has increased, and updated the first voltage deviation. The signal is transmitted to the parent agent 30 (1), the other generator agent 10 in the first distribution line 101 (1), and the load agent 20 in the first distribution line 101 (1). The generator agent 10 (1) transmits the acquired Vn1 to the load agent 20 in the first distribution line 101 (1).

  The load agent 20 (1) in the first distribution line 101 (1) receives the transmitted Vn1. The load agent 20 (1) measures and acquires the load vicinity voltage value Vn21. The load agent 20 (1) compares the acquired Vn21 with the received Vn1, and when Vn21 exceeds Vn1, starts the operation of its own load (S2312). Thereby, the reverse power flow in the 1st distribution line 101 (1) reduces (S2313).

  On the other hand, the parent agent 30 (2) measures and acquires its own higher-side voltage value Vn32. When the acquired Vn32 exceeds the threshold value (107V), the parent agent 30 (2) transmits a second voltage deviation signal to a self-load agent (not shown) under its control. The self-load agent starts the self-load operation based on the second voltage deviation signal (S2314).

  The load agent 20 (2) in the first distribution line 101 (1) measures and acquires its own load vicinity voltage value Vn22. The load agent 20 (2) compares Vn22 with the load vicinity voltage value (referred to as Vn23) received from the other load agent 20 in the first distribution line 101 (1), and when Vn22 is larger than Vn23. Transmits Vn22 to the other load agent 20 in the first distribution line 101 (1). When the load agent 20 (2) does not receive the load vicinity voltage value from the other load agent 20 in the first distribution line 101 (1) for a predetermined time, the load agent 20 (2) itself is the load agent in the first distribution line 101 (1). The load agent 20 having the maximum load vicinity voltage value among the 20 is started, and the operation of the own load is started (S2315). Thereby, the reverse power flow in the 1st distribution line 101 (1) reduces (S2316).

  Since the reverse power flow in the first distribution line 101 (1) has decreased, the reverse power flow in the second distribution line 102 decreases (S2317).

  The parent agent 30 (1) receives the first voltage deviation signal from the generator agent 10 (1) described above. Further, the parent agent 30 (1) measures and acquires its own higher voltage value Vn3 (107 V). Since the parent agent 30 (1) has Vn3 of 107V and is equal to or less than the threshold value (107V), the parent agent 30 (1) transmits its own higher-side voltage value Vn3 to the other parent agent 30 (S2318).

  As described above, in the power supply system 1 of the present embodiment, the generator agent 10 transmits to the load agent 20 the first voltage deviation signal indicating that a voltage increase has occurred in the first distribution line 101. Since the load agent 20 receives this and starts the operation of its own load, the increase of the distribution voltage in the first distribution line 101 can be suppressed, and the tidal current fluctuation in the first distribution line 101 can be suppressed. Further, when the generator agent 10 does not receive the first voltage deviation transmission right signal within a predetermined time, the generator agent 10 transmits the first voltage deviation signal to the load agent 20, so that the communication congestion related to the first voltage deviation signal is reduced. Can be prevented. Further, since the load agent 20 starts the operation of its own load when it does not receive the first control right signal within a predetermined time, it can prevent the plurality of loads 6 from starting the operation at the same time. 6 over-control can be prevented.

  Further, when the load vicinity voltage value acquired by the load agent 20 is larger than the load vicinity voltage value received from the other load agent 20, the load agent 20 transmits its own load vicinity voltage value to the other load agent 20. Among the load agents 20, the load agent 20 having the highest load near voltage value can transmit its own load near voltage value.

  In addition, the parent agent 30 determines that the first distribution line 101 has not increased in voltage, the second distribution line 102 has increased in voltage, and the higher voltage value of the first distribution line 102 exceeds the threshold value, the second voltage deviation Send a signal to the self-load agent. And since the self-load agent receives the second voltage deviation signal and starts the operation of the self-load, the self-load agent can suppress the increase of the distribution voltage in the second distribution line 102 and suppress the tidal current fluctuation in the second distribution line 102. it can. Further, when the parent agent 30 does not receive the second voltage deviation transmission right signal within a predetermined time, the parent agent 30 transmits the second voltage deviation signal to the self-load agent, thereby preventing communication congestion related to the second voltage deviation signal. be able to. In addition, since the self-load agent starts the operation of the self-load when the second control right signal is not received within a predetermined time, it is possible to prevent a plurality of self-loads from starting the operation at the same time. It is possible to prevent overload control.

  In addition, when the upper voltage value acquired by the parent agent 30 is larger than the upper voltage value received from the other parent agent 30, the parent agent 30 transmits its upper voltage value to the other parent agent 30. Among the parent agents 30, the parent agent 30 with the highest upper-side voltage value can transmit its own upper-side voltage value. In addition, when the parent agent 30 does not receive the higher-side voltage value transmission right signal within a predetermined time, it transmits the higher-side voltage value to the other parent agent 30, thereby preventing communication congestion related to the higher-side voltage value. be able to.

  Also, when the load proximity voltage value acquired by itself is larger than the load proximity voltage value received from another self load agent, the self load agent transmits its own load proximity voltage value to the other self load agent. Of the self-load agents, the self-load agent having the highest load vicinity voltage value can transmit its own load vicinity voltage value. Then, the self-load agent having the highest load vicinity voltage value among the self-load agents can start the operation of its own load 6. Thereby, the raise of the distribution voltage in the 2nd distribution line 102 can be suppressed, and the tidal current fluctuation in the 2nd distribution line 102 can be suppressed. In addition, since the self-load agent starts the self-load operation when the second control right signal is not received within a predetermined time, it is possible to prevent a plurality of self-loads from starting the operation at the same time. Self-load over-control can be prevented.

  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, in the above embodiment, the on / off control is exemplified as the output control mode of the load 6. However, the output control mode of the load 6 is not limited to the on / off control, and the current power consumption of the load 6 is adjusted. Also good.

  Further, in the present embodiment, the case where the grids of the first and second layers exist has been described, but the present invention can be extended by the same method when the grid of the n layers exists.

DESCRIPTION OF SYMBOLS 1 Power supply system 5 Generator 6 Load 10 Generator agent 20 Load agent 30 Parent agent 101 1st distribution line 102 2nd distribution line 112 1st voltage deviation signal receiving part 113 1st voltage deviation release signal receiving part 114 Generator vicinity Voltage value acquisition unit 115 First voltage departure signal transmission unit 212 First voltage departure signal reception unit 213 First voltage departure signal reception unit 214 Load vicinity voltage value acquisition unit 217 Load control unit 218 Other load vicinity voltage value reception unit 219 Load Neighborhood voltage comparison unit 222 Load neighborhood voltage value transmission unit 224 Second voltage departure signal reception unit 225 Second voltage departure cancellation signal reception unit 312 First voltage departure signal reception unit 313 First voltage departure cancellation signal reception unit 315 Second voltage departure Signal receiver 316 Second voltage deviation cancel signal receiver 317 Second voltage deviation signal transmitter 31 8 Second Voltage Deviation Canceling Signal Transmitter 331 Upper Voltage Value Acquisition Unit 332 Other Upper Voltage Value Receiver 333 Upper Voltage Value Comparer 336 Upper Voltage Value Transmitter

Claims (7)

A control method of a power supply system including a first distribution line to which a plurality of generators and a plurality of loads are connected,
Attached to each of the generators is a generator agent that is an information processing device capable of obtaining a generator vicinity voltage value that is a voltage at a connection point of each of the first distribution lines,
A load agent, which is an information processing device capable of acquiring a load vicinity voltage value that is a voltage at a connection point of each of the first distribution lines, is attached to each of the loads,
The generator agent and the load agent connected to the same first distribution line can communicate with each other between the generator agents, between the load agents, and between the generator agent and the load agent. ,
The generator agent is:
Storing first voltage deviation information which is information indicating whether or not a voltage increase of the first distribution line has occurred;
When receiving a first voltage deviation signal, which is a signal indicating that a voltage increase has occurred in the first distribution line, the first voltage deviation information is updated to indicate that a voltage increase has occurred,
When receiving the first voltage deviation release signal, which is a signal indicating that no voltage rise has occurred in the first distribution line, the first voltage deviation information is updated to indicate that no voltage rise has occurred,
Obtain the generator vicinity voltage value from time to time,
When the generator vicinity voltage value exceeds a preset threshold value, a first voltage deviation transmission right signal that is a signal indicating that a right to transmit the first voltage deviation signal is being requested or acquired. , Transmitting to the other generator agent and the load agent, and waiting for reception of the first voltage deviation transmission right signal from the other generator agent and the load agent, and the first voltage within a predetermined time. When the deviation transmission right signal is not received, the stored first voltage deviation information is updated to indicate that a voltage rise has occurred, and the first voltage deviation signal is updated to the other generator agent and the load agent. To
The load agent is
Storing the first voltage deviation information;
Upon receiving the first voltage deviation signal, the first voltage deviation information is updated to indicate that a voltage increase has occurred,
When receiving the first voltage deviation cancellation signal, the first voltage deviation information is updated to indicate that no voltage increase has occurred,
Obtain the load near voltage value from time to time,
If the first voltage deviation information indicates that a voltage increase has occurred, and if the voltage value near the load exceeds a preset threshold value, the control right of the load attached to the first voltage deviation information is given. A first control right signal that is a request or acquisition signal is transmitted to the other load agent, and the reception of the first control right signal from the other load agent is awaited. When the first control right signal is not received within a time period, the operation of the load attached thereto is started. It is a control method of the electric power supply system according to claim 1,
The load agent is
Receiving the near-load voltage value;
The first voltage deviation information indicates that a voltage increase has occurred, the load vicinity voltage value acquired by itself is equal to or less than the preset threshold value, and the load vicinity voltage value acquired by itself is If the received voltage value near the load is greater than the received load voltage value, the first load voltage value transmission right signal, which is a signal indicating that the right to transmit the load voltage value is being requested or acquired, And when waiting for reception of the first load vicinity voltage value transmission right signal from the other load agent and not receiving the first load vicinity voltage value transmission right signal within a predetermined time, A voltage supply value is transmitted to the other load agent. A method for controlling a power supply system, comprising: It is a control method of the electric power supply system according to claim 2,
And further including a second distribution line connected to a higher rank of the first distribution line and branching one or more of the first distribution lines.
Each of the second distribution lines is provided with a parent agent that is an information processing device capable of acquiring a higher-side voltage value that is a voltage at a connection point of each of the second distribution lines,
The parent agent includes a self-generator agent that is the generator agent attached to the generator connected to the first distribution line under the second distribution line to which the parent agent is attached. The load agent attached to the load connected to the first distribution line that is connected, and the other load agent can communicate with the other load agent,
The self-generator agent is:
When the voltage value near the generator exceeds a preset threshold value, the first voltage deviation transmission right signal is transmitted to the parent agent, and the first voltage deviation transmission right from the parent agent is transmitted. When waiting for signal reception and not receiving the first transmission right signal within a predetermined time, the stored first voltage deviation information is updated to indicate that a voltage rise has occurred, and the first voltage Send a deviation signal to the parent agent;
The parent agent is
Storing the first voltage deviation information;
Upon receiving the first voltage deviation signal, the first voltage deviation information is updated to indicate that a voltage increase has occurred,
When receiving the first voltage deviation cancellation signal, the first voltage deviation information is updated to indicate that no voltage increase has occurred,
Storing second voltage deviation information which is information indicating whether or not a voltage increase of the second distribution line has occurred;
When receiving a second voltage deviation signal, which is a signal indicating that a voltage increase has occurred in the second distribution line, the second voltage deviation information is updated to the effect that a voltage increase has occurred,
When receiving a second voltage deviation release signal, which is a signal indicating that no voltage rise has occurred in the second distribution line, the second voltage deviation information is updated to that no voltage rise has occurred,
The first voltage deviation information is a content indicating that no voltage increase has occurred, and the second voltage deviation information is a content indicating that a voltage increase has occurred, and the second distribution line of its own A second voltage deviation transmission right signal which is a signal indicating that a right to transmit the second voltage deviation signal is being requested or acquired when the upper voltage value which is a voltage at a connection point exceeds a threshold value. To the other parent agent and the self-load agent, and waits for the reception of the second voltage deviation transmission right signal from the other parent agent and the self-load agent. If the second voltage deviation transmission right signal is not received, the second voltage deviation signal is transmitted to the self-load agent;
The self-load agent is
Storing the second voltage deviation information;
Upon receiving the second voltage deviation signal, the second voltage deviation information is updated to indicate that a voltage increase has occurred,
When receiving the second voltage deviation cancellation signal, the second voltage deviation information is updated to indicate that no voltage increase has occurred,
If the second voltage deviation information indicates that a voltage increase has occurred and if the voltage value near the load exceeds a preset threshold value, the load of the load to which the self-load agent is attached A second control right signal, which is a signal indicating that a control right is being requested or acquired, is transmitted to the other load agent, and the reception of the second control right signal from the other load agent is awaited. Then, when the second control right signal is not received within a predetermined time, the operation of the load attached thereto is started. It is a control method of the electric power supply system according to claim 3,
The parent agent is
Receiving the upper voltage value,
The second voltage deviation information indicates that a voltage increase has occurred, and the higher-side voltage value, which is the voltage at the connection point of the second distribution line, is less than or equal to a threshold value, and When the acquired higher-side voltage value is larger than the received higher-side voltage value, the higher-side voltage value transmission right is a signal indicating that the right to transmit the higher-side voltage value is being requested or acquired. When a signal is transmitted to the other parent agent and the reception of the higher-side voltage value transmission right signal from the other parent agent is waited, and the higher-side voltage value transmission right signal is not received within a predetermined time. And transmitting the higher-side voltage value to the other parent agent. It is a control method of the electric power supply system according to claim 3,
The self-load agent is
Receiving the near-load voltage value;
The second voltage deviation information indicates that a voltage increase has occurred, the load vicinity voltage value acquired by itself is equal to or less than the preset threshold value, and the load vicinity voltage acquired by the self-load agent When the value is larger than the received near-load voltage value, the second near-load voltage value transmission right signal, which is a signal indicating that the right to transmit the near-load voltage value is being requested or acquired, To the self-load agent, and waits for reception of the second load vicinity voltage value transmission right signal from the other self-load agent, and receives the second load vicinity voltage value transmission right signal within a predetermined time. If not, send the load near voltage value to the other self-load agent,
A second control right signal, which is a signal indicating that the control right for the load to which the self-load agent is attached is being requested or acquired, is transmitted to the other load agent, and the other load agent is transmitted. Waiting for the reception of the second control right signal from the terminal, and starting the operation of the load attached thereto when the second control right signal is not received within a predetermined time. How to control the system. A power supply system including a first distribution line to which a plurality of generators and a plurality of loads are connected,
Each of the generators is provided with a generator agent that is an information processing device capable of obtaining a generator vicinity voltage value that is a voltage at a connection point of each of the first distribution lines.
Each of the loads is provided with a load agent that is an information processing device capable of acquiring a load vicinity voltage value that is a voltage at a connection point of each of the first distribution lines,
The generator agent and the load agent connected to the same first distribution line can communicate with each other between the generator agents, between the load agents, and between the generator agent and the load agent. ,
The generator agent is:
Storing first voltage deviation information which is information indicating whether or not a voltage increase of the first distribution line has occurred;
When receiving a first voltage deviation signal, which is a signal indicating that a voltage increase has occurred in the first distribution line, the first voltage deviation information is updated to indicate that a voltage increase has occurred,
When receiving the first voltage deviation release signal, which is a signal indicating that no voltage rise has occurred in the first distribution line, the first voltage deviation information is updated to indicate that no voltage rise has occurred,
Obtain the generator vicinity voltage value from time to time,
When the generator vicinity voltage value exceeds a preset threshold value, a first voltage deviation transmission right signal that is a signal indicating that a right to transmit the first voltage deviation signal is being requested or acquired. , Transmitting to the other generator agent and the load agent, and waiting for reception of the first voltage deviation transmission right signal from the other generator agent and the load agent, and the first voltage within a predetermined time. When the deviation transmission right signal is not received, the stored first voltage deviation information is updated to indicate that a voltage increase has occurred, and the first voltage deviation signal is updated to the other generator agent and the load agent. To
The load agent is
Storing the first voltage deviation information;
Upon receiving the first voltage deviation signal, the first voltage deviation information is updated to indicate that a voltage increase has occurred,
When receiving the first voltage deviation cancellation signal, the first voltage deviation information is updated to indicate that no voltage increase has occurred,
Obtain the load near voltage value from time to time,
If the first voltage deviation information indicates that a voltage increase has occurred, and if the voltage value near the load exceeds a preset threshold value, the control right of the load attached to the first voltage deviation information is given. A first control right signal that is a request or acquisition signal is transmitted to the other load agent, and the reception of the first control right signal from the other load agent is awaited. When the first control right signal is not received within the time, the operation of the load attached thereto is started. The power supply system according to claim 6,
The load agent is
Receiving the near-load voltage value;
The first voltage deviation information indicates that a voltage increase has occurred, the load vicinity voltage value acquired by itself is equal to or less than the preset threshold value, and the load vicinity voltage value acquired by itself is If the received voltage value near the load is greater than the received load voltage value, the first load voltage value transmission right signal, which is a signal indicating that the right to transmit the load voltage value is being requested or acquired, is sent to another load agent. And when waiting for reception of the first load vicinity voltage value transmission right signal from the other load agent and not receiving the first load vicinity voltage value transmission right signal within a predetermined time, A power supply system, wherein a voltage value is transmitted to the other load agent.

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