JP2017131070A - Management server and management method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a management server and management method that make it possible to stabilize a power system by transmitting a power instruction message.SOLUTION: A power management system includes a management server 20 comprising: a communication unit 21 for transmitting a power instruction message on suppression of an amount of power supplied from the power system, a power flow amount, or an amount of power supplied to the power system, a reverse power flow amount, to a communication facility including a power supply facility; and a control unit 22 for performing scheduling on transmission of the power instruction message on the basis of the magnitude of a load affecting operation of the communication facility. The communication facility, an exchange station or a base station is provided on a communication channel network and controls communication performed using the communication channel network.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a management server and a management method for transmitting a power command message to a communication facility having a power supply facility.

  It is conceivable that communication equipment such as a base station and an exchange station has power equipment as a backup power source in a power failure state. The use of a power supply facility provided in a communication facility for stabilization of a power system has also been studied (for example, Patent Documents 1 and 2).

  For example, the stabilization of the power system is supplied to the tidal flow or power system, which is the amount of power supplied from the power system, by transmitting a power command message from a management server belonging to the power company or distribution company. The reverse power flow, which is the amount of power generated, can be suppressed. The power command message is, for example, at least one of a power flow suppression message (for example, DR; Demand Response) related to suppression of power flow and a reverse power flow suppression message (for example, output suppression message) related to suppression of reverse power flow.

JP2015-43672A JP 2013-74631 A

  By the way, when the load of communication equipment is large, there is a possibility that a delay occurs in the reaction to the power command message. When such a delay occurs, there is a possibility that the power system cannot be properly stabilized.

  Therefore, the present invention has been made to solve the above-described problem, and an object of the present invention is to provide a management server and a management method capable of stabilizing the power system by transmitting a power command message.

  One feature is a management server, which is a tidal flow that is the amount of power supplied from the power system or a reverse tidal flow that is the amount of power supplied to the power system with respect to a communication facility including a power supply facility. A communication unit that transmits a power command message related to suppression of the power supply, and a control unit that schedules transmission of the power command message based on the magnitude of a load that affects the operation of the communication facility. The gist of the present invention is that it is provided on a line network and controls communication performed using the communication line network.

  One feature is a management method, which is a tidal flow that is the amount of power supplied from a power system or a reverse tidal flow that is the amount of power supplied to the power system with respect to a communication facility including a power supply facility. A step A for transmitting a power command message relating to the suppression of power transmission, and a step B for scheduling transmission of the power command message based on a load that affects the operation of the communication facility. The gist of the present invention is that it is provided on a line network and controls communication performed using the communication line network.

  ADVANTAGE OF THE INVENTION According to this invention, the management server and management method which enable stabilization of an electric power system by transmission of an electric power command message can be provided.

FIG. 1 is a diagram illustrating a management system 100 according to the embodiment. FIG. 2 is a diagram illustrating the communication facility 10 according to the embodiment. FIG. 3 is a diagram illustrating the management server 20 according to the embodiment. FIG. 4 is a diagram illustrating an application scene according to the embodiment. FIG. 5 is a sequence diagram illustrating a management method according to the embodiment.

  Embodiments will be described below with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.

  However, it should be noted that the drawings are schematic and ratios of dimensions may be different from actual ones. Accordingly, specific dimensions and the like may be determined in consideration of the following description. Further, there may be a case where the dimensional relationships and ratios are different between the drawings.

[Outline of Disclosure]
The management server which concerns on embodiment is related with suppression of the tidal flow which is the quantity of the electric power supplied from an electric power grid, or the reverse tidal flow which is the quantity of the electric power supplied to the said electric power grid with respect to communication equipment provided with power supply equipment. A communication unit that transmits a power command message; and a control unit that schedules transmission of the power command message based on a load that affects the operation of the communication facility. And a facility for controlling communication performed using the communication network.

  In the embodiment, the management server schedules transmission of the power command message based on the magnitude of the load that affects the operation of the communication facility. This can reduce the possibility of a delay in the response to the power command message, and can appropriately stabilize the power system.

[Embodiment]
(Management system)
Hereinafter, a management system according to the embodiment will be described. FIG. 1 is a diagram illustrating a management system 100 according to the embodiment. As illustrated in FIG. 1, the management system 100 includes a management server 20, a switching center 200, a base station 300, and a user terminal 400. The management server 20 is managed by a power company, a power aggregator, a communication company, or the like.

  The management server 20 transmits a power command message to a communication facility including a power supply facility via a communication network 50 (for example, a backhaul network of a mobile communication network). That is, the management server 20 may be a DR (Demand Response) server.

  The power command message is a message regarding suppression of a tidal flow that is the amount of power supplied from the power system or a reverse power flow that is the amount of power supplied to the power system. The power command message relating to the reduction of tidal flow is, for example, a message that the desired reduction in power consumption is ○% reduction, or a message that the desired reduction in power usage is ○ kwh reduction. A message indicating that an incentive is presented according to the reduction amount may be used. As the message related to the suppression of the reverse power flow, for example, a message indicating that the reverse power flow is reduced by ○% is assumed. In the embodiment, the communication facility including the power supply facility is, for example, at least one of the switching center 200 and the base station 300.

  The exchange 200 is an example of a communication facility provided with a power supply facility. The switching center 200 communicates with a plurality of base stations 300 and controls communication via each of the plurality of base stations 300. In the embodiment, an exchange 200A and an exchange 200B are provided.

  Base station 300 is an example of communication equipment including power supply equipment. The base station 300 has a communication area 310 and performs wireless communication with the user terminal 400 located in the communication area 310. In the embodiment, base stations 300A to 300D are provided. Base station 300A to base station 300D have communication areas 310A to 310D.

  User terminal 400 performs wireless communication with base station 300. The user terminal 400 is, for example, a mobile phone or a tablet terminal.

(Communication equipment)
Below, the communication equipment which concerns on embodiment is demonstrated. FIG. 2 is a diagram illustrating the communication facility 10 according to the embodiment. The communication facility 10 is provided on the communication line network 50 and may be any facility that controls communication performed using the communication line network 50. In the embodiment, the communication facility 10 is, for example, the switching center 200 and the base station 300 described above. As shown in FIG. 2, the communication facility 10 includes a power supply facility 11 and a control facility 12.

  The power supply facility 11 may be a facility (for example, a storage battery, a solar cell, or a fuel cell) that outputs power supplied from the communication facility 10 to the power system. The power supply facility 11 may be a facility (for example, a storage battery) that accumulates power supplied from the power system to the communication facility 10. The power supply facility 11 may be a facility that outputs power to cover the power consumed by the communication facility 10 in a case where the power supplied from the power system is insufficient, such as a power failure.

  Here, the capacity of the power supply facility 11 may be a capacity that can be output from the power supply facility 11. Therefore, when the power supply facility 11 is a storage battery, the capacity of the power supply facility 11 may be the discharge capacity of the storage battery. When the power supply facility 11 is a power generation facility such as a solar cell or a fuel cell, the capacity of the power supply facility 11 may be the power generation capacity of the power generation facility. The capacity of the power supply facility 11 may be a capacity that can be stored in the power supply facility 11. Therefore, when the power supply facility 11 is a storage battery, the capacity of the power supply facility 11 may be the storage capacity of the storage battery. The storage capacity may be synonymous with the discharge capacity described above.

  The control facility 12 controls communication performed with the user terminal 400. For example, when the communication facility 10 is the exchange 200, the control facility 12 includes a base for controlling communication via each of the plurality of base stations 300. On the other hand, when the communication facility 10 is the base station 300, the control facility 12 includes a base for controlling communication performed with the user terminal 400 located in the communication area 310.

(Management server)
Hereinafter, the management server 20 according to the embodiment will be described. FIG. 3 is a diagram illustrating the management server 20 according to the embodiment. As illustrated in FIG. 3, the management server 20 includes a communication unit 21 and a control unit 22.

  The communication unit 21 is configured by a communication module, and transmits a power command message regarding suppression of a tidal flow or a reverse tidal flow to the communication facility 10. The communication unit 21 may transmit a power command message to the plurality of communication facilities 10.

  The control unit 22 includes a CPU and a memory, and controls the management server 20. The control unit 22 schedules transmission of the power command message based on the magnitude of the load that affects the operation of the communication facility 10.

  Here, the scheduling of the transmission of the power command message may be a process of selecting a transmission partner (communication facility 10) of the power command message, or a process of determining the transmission order of the power command message to the communication facility 10. Also good.

  In the embodiment, the load that affects the operation of the communication facility 10 is processed by the number of communication partners connected to the communication facility 10, the congestion state of the communication line connecting the communication facility 10 and the communication partner, and the communication facility 10 processing. It is at least one of the signal amounts to be used. When the communication facility 10 is the switching center 200, the communication partner may be the number of base stations 300 that communicate with the switching center 200, and performs communication via the base station 300 that communicates with the switching center 200. The user terminal 400 may be used. On the other hand, when the communication facility 10 is the base station 300, the communication partner may be the user terminal 400 that performs wireless communication with the base station 300.

  For example, the scheduling of the transmission of the power command message is performed by at least one of the following procedures.

  (A) The control unit 22 schedules transmission of a power command message according to each load state of the plurality of communication facilities 10. For example, consider a case where the communication facility 10 includes a first communication facility affected by the first load and a second communication facility affected by a second load greater than the first load. In such a case, the control unit 22 schedules transmission of the power command message to the first communication facility with priority over transmission of the power command message to the second communication facility. For example, the control unit 22 may preferentially select the first communication facility over the second communication facility as the transmission partner (communication facility 10) of the power command message, and transmit the power command message to the second communication facility. The transmission order of the power command messages for the first communication facility may be made earlier than the order. That is, the control unit 22 preferentially schedules transmission of a power command message to the communication facility 10 that is affected by a relatively small load.

  (B) The control unit 22 may exclude the communication facility 10 having a load larger than the predetermined threshold from the transmission partner (communication facility 10) of the power command message. When the transmission timing of the power command message for the communication equipment 10 having a load smaller than the predetermined threshold is set as the reference timing, the control unit 22 sets the transmission timing of the power command message for the communication equipment 10 having a load larger than the predetermined threshold. It may be delayed from the reference timing.

  (C) The control unit 22 may schedule transmission of the power command message according to the capacity of each of the power supply facilities 11 included in the plurality of communication facilities 10. For example, consider a case where the communication facility 10 includes a first communication facility including the power supply facility 11 having the first storage capacity and a second communication facility including the power supply facility 11 having the second storage capacity smaller than the first storage capacity. In such a case, the control unit 22 schedules transmission of the power command message to the first communication facility with priority over transmission of the power command message to the second communication facility. For example, the control unit 22 may preferentially select the first communication facility over the second communication facility as the transmission partner (communication facility 10) of the power command message, and transmit the power command message to the second communication facility. The transmission order of the power command messages for the first communication facility may be made earlier than the order. That is, the control unit 22 preferentially schedules transmission of a power command message to the communication facility 10 including the power supply facility 11 having a relatively large capacity.

  (D) The control unit 22 may exclude the communication facility 10 including the power supply facility 11 having a capacity smaller than the predetermined threshold from the transmission partner (communication facility 10) of the power command message. The control unit 22 communicates with the power supply facility 11 having a capacity smaller than the predetermined threshold when the transmission timing of the power command message to the communication facility 10 including the power supply facility 11 having a capacity larger than the predetermined threshold is set as the reference timing. The transmission timing of the power command message to the facility 10 may be delayed from the reference timing.

  (E) The control unit 22 may schedule the transmission of the power command message according to both the load state of each of the plurality of communication facilities 10 and the capacity of each of the power supply facilities 11 included in the plurality of communication facilities 10. . In such a case, the control unit 22 schedules transmission of the power command message based on the priority based on the load state and the priority based on the capacity. The control unit 22 may schedule transmission of the power command message based on the result of multiplying each of the priority based on the load state and the priority based on the capacity by the weighting coefficient.

  In the above-described procedure, the load of the communication facility 10 may be a current value of the load of the communication facility 10 acquired during a period for suppressing the tidal flow or the reverse tidal flow (hereinafter, a suppression period). The load of the communication facility 10 may be a predicted value of the load of the communication facility 10 during the suppression period. The predicted value may be acquired before the suppression period.

  In the procedure described above, the capacity of the power supply facility 11 may be the maximum capacity of the power supply facility 11. The capacity of the power supply facility 11 may be the current value of the capacity of the power supply facility 11 acquired during the suppression period. The capacity of the power supply facility 11 may be a predicted value of the capacity of the power supply facility 11 during the suppression period. The predicted value may be acquired before the suppression period.

(Applicable scene)
Below, the application scene which concerns on embodiment is demonstrated. FIG. 4 is a diagram illustrating an application scene according to the embodiment. FIG. 4 illustrates a case where the power command message is a message related to suppression of tidal flow. The power command message includes information indicating a necessary reduction capacity that is a tidal flow to be reduced in the section managed by the management server 20.

  As illustrated in FIG. 4, a communication facility A to a communication facility E are provided as the communication facility 10, and a case where each of the communication facility A to the communication facility E includes a storage battery as the power supply facility 11 will be described as an example. The load (congested state) of the communication facility A to the communication facility E changes with the passage of time, and the storage capacity (discharge capacity) of the storage battery included in the communication facility A to the communication facility E also changes with the passage of time.

  Under such a premise, in the first 10 minutes, the communication facility A having the smallest load (congested state) is selected as the transmission partner of the power command message, and the load (congested state) is the second smallest. Communication facility B is selected second, and communication facility C having the second smallest load (congestion state) is selected third. When communication equipment A to communication equipment C are selected as the transmission partner of the power command message, the capacity capable of reducing the tidal flow reaches the required storage capacity, so communication facilities D and E are excluded from the transmission partner of the power command message. Is done. In such a case, the transmission order of the power command message for the communication facility C having the largest storage capacity is first, and the transmission order of the power command message for the communication facility B having the second largest storage capacity is second. Yes, the transmission order of the power command message to the communication facility B having the third largest storage capacity may be third.

  Also in the second 10 minutes and the last 10 minutes, the transmission target of the power command message is selected based on the load of the communication facility 10 according to the same procedure as in the first 10 minutes. Furthermore, the transmission order of the power command messages may be determined based on the capacity of the power supply facility 11 according to the same procedure as in the first 10 minutes.

  Further, as will be described later, the necessary reduction capacity may be calculated according to a suppression request or a system power situation, or the originally planned reduction capacity may be corrected.

(Management method)
Hereinafter, a management method according to the embodiment will be described. FIG. 5 is a sequence diagram illustrating a management method according to the embodiment.

  As shown in FIG. 5, in step S <b> 10, the management server 20 receives a tidal flow rate or reverse tidal flow rate suppression request. The suppression request may be accepted by receiving a message received from the electric power company, or may be accepted by an operator input.

  In step S11, the management server 20 transmits an inquiry message to the communication facility 10 group. The inquiry message is a message for requesting transmission of information indicating the load (current value or predicted value) of the communication facility 10. The inquiry message may be a message requesting transmission of information indicating the capacity (current value or predicted value) of the power supply facility 11.

  In step S <b> 12, the communication facility 10 group transmits a response message to the management server 20. The response message includes information indicating the load (current value or predicted value) of the communication facility 10. The response message may include information indicating the capacity (current value or predicted value) of the power supply facility 11.

  In step S <b> 13, the management server 20 schedules transmission of the power command message based on the magnitude of the load that affects the operation of the communication facility 10.

  Here, the scheduling of the transmission of the power command message may be a process of selecting a transmission partner (communication facility 10) of the power command message, or a process of determining the transmission order of the power command message to the communication facility 10. Also good.

  In step S14, the management server 20 transmits a power command message to the communication facility 10 group based on the scheduling result of step S13.

(Function and effect)
In the embodiment, the management server 20 schedules transmission of the power command message based on the magnitude of the load that affects the operation of the communication facility 10. This can reduce the possibility of a delay in the response to the power command message, and can appropriately stabilize the power system.

  In the embodiment, the management server 20 may schedule transmission of the power command message based on the capacity of the power supply facility 11 included in the communication facility 10. This makes it possible to efficiently schedule the transmission of the power command message.

[Other Embodiments]
Although the present invention has been described with reference to the above-described embodiments, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  In the embodiment, the case where the management server 20 manages only the communication facility 10 including the power supply facility 11 as the facility (or facility) that contributes to the suppression of the tide flow rate or the reverse tide flow rate has been mainly described. However, the embodiment is not limited to this. The management server 20 is a customer facility that does not control communication performed using the communication line network 50 in addition to the communication facility 10 including the power supply facility 11 as the facility (or facility) that contributes to the suppression of the tidal flow or the reverse tidal flow. May be managed. In such a case, the management server 20 (the control unit 22) transmits the power command message to the communication facility rather than the power command message to the customer facility that does not control the communication performed using the communication line network 50. You may schedule with priority.

  DESCRIPTION OF SYMBOLS 10 ... Communication equipment, 11 ... Power supply equipment, 12 ... Control equipment, 20 ... Management server, 21 ... Communication part, 22 ... Control part, 50 ... Communication network, 100 ... Management system, 200 ... Switching station, 300 ... Base station 310 ... Communication area 400 ... User terminal

Claims (9)

A communication unit that transmits a power command message relating to suppression of a tidal flow that is the amount of power supplied from the power system or a reverse power flow that is the amount of power supplied to the power system, to a communication facility including a power supply facility When,
A control unit that schedules transmission of the power command message based on the size of the load that affects the operation of the communication facility;
The management server is provided on a communication line network and is a facility for controlling communication performed using the communication line network. The communication unit transmits the power command message to a plurality of communication facilities,
The management server according to claim 1, wherein the control unit schedules transmission of the power command message according to a load state of each of the plurality of communication facilities. The communication equipment includes a first communication equipment affected by a first load and a second communication equipment affected by a second load larger than the first load,
The said control part schedules transmission of the said electric power command message with respect to a said 1st communication equipment preferentially rather than transmission of the said electric power command message with respect to a said 2nd communication equipment, The Claim 1 or Claim 2 characterized by the above-mentioned. The management server described in. The communication unit transmits the power command message to a plurality of communication facilities,
The said control part schedules transmission of the said electric power command message according to each capacity | capacitance of the said power supply equipment with which these communication equipment is provided, The Claim 1 thru | or 3 characterized by the above-mentioned. Management server. The communication facility includes a first communication facility including the power supply facility having a first storage capacity, and a second communication facility including the power supply facility having a second storage capacity smaller than the first storage capacity,
The said control part schedules transmission of the said electric power command message with respect to a said 1st communication equipment preferentially rather than transmission of the said electric power command message with respect to a said 2nd communication equipment. Management server in any one of.   The control unit schedules transmission of the power command message to the communication equipment with priority over transmission of the power command message to a customer facility that does not control communication performed using the communication line network. The management server according to any one of claims 1 to 5.   The load is at least one of the number of communication partners connected to the communication facility, a congestion state of a communication line connecting the communication facility and the communication partner, and a signal amount to be processed by the communication facility. The management server according to claim 1, wherein the management server is a management server.   6. The communication apparatus according to claim 1, wherein the communication facility is at least one of a base station that performs radio communication with a user terminal and an exchange that performs communication with the base station. The management server described. Step A for transmitting a power command message relating to suppression of a tidal flow, which is the amount of power supplied from the power system, or a reverse power flow, which is the amount of power supplied to the power system, to a communication facility including a power supply facility. When,
Scheduling the transmission of the power command message based on the magnitude of the load affecting the operation of the communication facility, and
The management method, wherein the communication facility is a facility that is provided on a communication line network and controls communication performed using the communication line network.

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