JP2016149915A - Power generator monitoring device, power generator monitoring method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power generator monitoring device, power generator monitoring method, and program that are capable of sustaining operation of a power generator depending on residual fuel.SOLUTION: A power generator monitoring device of an embodiment includes: a residual fuel information acquisition unit; a required fuel information acquisition unit; and an operation sustainable time acquisition unit. The residual fuel information acquisition unit acquires, with respect to a plurality of power generators capable of supplying power to a power load, residual fuel information indicating the amount of residual fuel of each power generator. The required fuel information acquisition unit acquires required fuel information indicating a relation between generation power and the amount of power consumption of each power generator. The operation sustainable time acquisition unit acquires, on the basis of the residual fuel information and the required fuel information, an operation sustainable time indicating a period of time in which the plurality of power generators can supply power to a designated power load.SELECTED DRAWING: Figure 3

Description

  Embodiments described herein relate generally to a generator monitoring device, a generator monitoring method, and a program.

The following power supplies are defined as necessary power supplies for commercial power outages when power supply from the power company is cut off.
(1) Power supply for security defined in the technical standard of electrical equipment: A power supply for security or business use for maintaining the function of electrical equipment.
(2) Emergency power supply in the Fire Service Act: An emergency power supply for maintaining the functions of fire fighting equipment (fire hydrants, sprinklers, fire smoke exhausting equipment, etc.). It is prescribed that it can operate continuously for 60 minutes or more at the rated load, that the fuel oil has a capacity of 2 hours or more, and that the voltage is established within 40 seconds.
(3) Standby power source in the Building Standard Law: A standby power source for maintaining the functions of disaster prevention facilities (emergency lighting, smoke exhausters, etc.). It is prescribed that it can be operated continuously for 30 minutes or more at the rated load and that the voltage is established within 40 seconds.

Conventionally, when power is supplied to emergency loads such as fire-fighting equipment and disaster prevention equipment by an emergency generator during a commercial power outage, even for loads other than emergency loads, the power generation capacity of the generator is not exceeded. There are many operations that supply power to as many loads as possible.
On the other hand, in situations where generator fuel supply cannot be expected for a long time, such as during a large-scale disaster, it is required to ensure the generator operation duration only for the required time even if the load for supplying power is limited. there is a possibility. In particular, when there are a plurality of generators, there is a possibility that it is required to operate a plurality of generators so as to lengthen the operation continuation time of a generator that cannot secure the required operation continuation time.

JP 2009-197696 A

  The problem to be solved by the present invention is to support the operation of a plurality of generators so as to increase the operation continuation time of a generator that does not secure the required operation continuation time among the plurality of generators. A generator monitoring device, a generator monitoring method, and a program are provided.

  The generator monitoring apparatus according to the embodiment includes a remaining fuel information acquisition unit, a necessary fuel information acquisition unit, and an operation continuation possible time acquisition unit. The remaining fuel information acquisition unit acquires remaining fuel information indicating the amount of remaining fuel of each generator for a plurality of generators capable of supplying power to the electric load. The required fuel information acquisition unit acquires required fuel information indicating the relationship between the power generated by each generator and the fuel consumption. The operation continuation possible time acquisition unit acquires an operation continuation possible time indicating a time during which a plurality of generators can supply power to the designated power load based on the remaining fuel information and the necessary fuel information.

1 is a schematic configuration diagram of a monitoring control system of an embodiment. The schematic block diagram which shows the function structure of the relay apparatus of embodiment. The schematic block diagram which shows the function structure of the monitoring control apparatus of embodiment. The figure which shows the example of the load management data of embodiment. The figure which shows the example of the required fuel information of embodiment. The figure which shows the example of the relationship between the ratio of the electric power generation between the some generators of embodiment, and the operation continuation possible time. The schematic block diagram which shows the function structure of the terminal device of embodiment. The figure which shows the example of the control setting input screen which the terminal device of embodiment displays. The figure which shows the example of the control status display screen which the terminal device of embodiment displays. The flowchart which shows the monitoring control process of the monitoring control apparatus of embodiment. Explanatory drawing of the example of the operation continuation possible time extension by interruption | blocking of the power consumption of the load of embodiment. The schematic block diagram of the monitoring control apparatus of the modification of embodiment. The flowchart which shows the supervisory control process of the supervisory control apparatus of the modification of embodiment. Explanatory drawing of the example of the margin of the electric energy in the generator of the modification of embodiment. Explanatory drawing of the example of the shortage of the electric energy in the generator of the modification of embodiment.

  Hereinafter, a generator monitoring device, a generator monitoring method, and a program according to an embodiment will be described with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of a monitoring control system according to an embodiment. The monitoring control system 1 shown in FIG. 1 includes a relay device 101, a relay device 102, a monitoring control device 200, and a terminal device 300. The relay apparatuses 101 and 102, the monitoring control apparatus 200, and the terminal apparatus 300 are connected to the monitoring control network 900. As a communication method of the monitoring control network 900, for example, TCP (Transmission Control Protocol) / IP (Internet Protocol) can be used.

  The relay apparatus 101 monitors and controls the commercial power receiving / transforming equipment 411 and the generator 421. The generator 421 generates power using fuel. In addition, the relay apparatus 101 performs monitoring and control for power loads (hereinafter referred to as “loads”) such as the emergency load 511 and the security / general load 521. The relay apparatus 101, the power receiving / transforming equipment 411, the generator 421, the emergency load 511 and the security / general load 521 are installed in the facility A.

  When commercial power is supplied, power is supplied from the power receiving / transforming equipment 411 to the emergency load 511 and the security / general load 521. Specifically, the receiving / transforming equipment 411 receives supply of power from the commercial power system 810. Further, the circuit breaker 821 is conductive (ON), and the power receiving / transforming equipment 411 transforms the power from the commercial power system 810 to the rated voltage of the in-facility power system 831 and outputs it to the in-facility power system 831. The power receiving / transformation equipment 411, the emergency load 511, and the security / general load 521 are all connected to the in-facility power system 831. The emergency load 511 and the security / general load 521 are all in the facility. The power supply is received from the power receiving / transforming equipment 411 through the power system 831.

On the other hand, when the supply of commercial power is stopped due to a power failure, that is, at the time of a commercial power failure, power is supplied from the generator 421 to the emergency load 511 and the security / general load 521. Specifically, the generator 421 is also connected to the in-facility power system 831, and the emergency load 511 and the security / general load 521 both receive the power generated by the generator 421.
At the time of a commercial power failure, the circuit breaker 821 is cut off (OFF) and the in-facility power system 831 is disconnected from the commercial power system 810 in order to avoid accidents due to sudden voltage changes or unexpected power supply during power recovery.

The relay device 102 monitors and controls the commercial power receiving / transforming equipment 412 and the generator 422. The generator 422 generates power using fuel. Further, the relay apparatus 102 performs monitoring and control on loads such as the emergency load 512 and the security / general load 522.
The relay device 102, the power receiving / transforming equipment 412, the generator 422, the emergency load 512 and the security / general load 522 are installed in the facility B.

  When commercial power is supplied, power is supplied from the power receiving / transforming equipment 412 to the emergency load 512 and the security / general load 522. Specifically, the power receiving / transforming facility 412 receives supply of power from the commercial power system 810. Further, the circuit breaker 822 is conductive, and the power receiving / transforming equipment 412 transforms the power from the commercial power system 810 into the rated voltage of the in-facility power system 832 and outputs it to the in-facility power system 832. The power receiving / transforming equipment 412, the emergency load 512, and the security / general load 522 are all connected to the in-facility power system 832, and the emergency load 512 and the security / general load 522 are all in the facility. Power is supplied from the receiving / transforming equipment 412 through the power system 832.

On the other hand, when the supply of commercial power is stopped by a power failure, that is, at the time of a commercial power failure, power is supplied from the generator 422 to the emergency load 512 and the security / general load 522. Specifically, the generator 422 is also connected to the in-facility power system 832, and the emergency load 512 and the security / general load 522 are all supplied with the power generated by the generator 422.
At the time of a commercial power failure, the circuit breaker 822 is cut off and the in-facility power system 832 is disconnected from the commercial power system 810 in order to avoid accidents due to sudden voltage changes or unexpected power supply during power recovery.

  The circuit breaker 840 is provided so that the in-facility power systems 831 and 832 can be conducted. When commercial power is being supplied, the circuit breaker 840 is in a cut-off state. On the other hand, at the time of a commercial power failure, the circuit breaker 840 becomes conductive. As a result, power can be supplied from one facility to the other facility. Specifically, the power generator 411 can supply power to one or both of the emergency load 512 and the safety / general load 522. Further, the power generator 412 can supply power to one or both of the emergency load 511 and the security / general load 521. The circuit breaker 840 performs a state transition between the interruption state and the conduction state according to the control of the monitoring control device 200, for example.

The power receiving / transforming facilities 411 and 412, the generators 421 and 422, the emergency loads 511 and 512, and the security / general loads 521 and 522 are all monitoring and control target facilities in the monitoring control system 1.
As an example of facilities A and B, a university campus can be raised. An emergency generator is installed in each adjacent campus, and each campus where power can be supplied from the emergency generator on one campus to the load on the other campus is an example of a facility. However, facilities here are not limited to university campuses. It is only necessary that each has a generator and can supply power from the generator of one facility to the load of the other facility.

Note that the number of facilities whose devices are monitored by the monitoring control system 1 is not limited to two as shown in FIG.
In FIG. 1, one emergency load 510 and one security / general load 520 are shown, but a plurality of loads may be provided. The emergency load 510 is, for example, a fire fighting facility or a disaster prevention facility. The security / general load 520 is a security load or a general load other than the emergency load.

Further, FIG. 1 shows a case where one relay device is installed in one facility, but a plurality of relay devices may be installed in one facility. For example, the receiving / transforming equipment 411 and the generator 421 may be connected to one relay device, and the emergency load 511 and the security / general load 521 may be connected to another relay device. Alternatively, a common relay device may be provided in a plurality of facilities. For example, instead of the relay devices 101 and 102, one relay device shared by the facility A and the facility B may be provided. In addition, any one or more of the power receiving / transforming equipment 411 or 42, the generator 421 or 422, the emergency load 511 or 522, the security load / general load 521 or 522 is directly connected to the monitoring control network without the relay device. 900 may be connected.
Further, the number of generators provided in one facility is not limited to one. A plurality of generators may be provided in one facility.

  Note that the relay apparatuses 101 and 102 are collectively referred to as the relay apparatus 100. The power receiving / transforming equipment 411 and 412 are collectively referred to as power receiving / transforming equipment 410. The generators 421 and 422 are collectively referred to as a generator 420. The emergency loads 511 and 512 are collectively referred to as an emergency load 510. The security / general loads 521 and 522 are collectively referred to as a security / general load 520. The circuit breakers 821 and 822 are collectively referred to as a circuit breaker 820. The facility power systems 831 and 832 are collectively referred to as the facility power system 830.

The supervisory control system 1 receives a power failure state signal from the power receiving / transforming equipment 410, a generated power signal and a remaining fuel signal from the generator 420, and an input state signal from the emergency load 510 and the safety / general load 520. take in. Further, the supervisory control system 1 outputs an on / off control signal to the security / general load 520.
The power failure state signal is a signal for notifying a power failure or power recovery. The generated power signal is a signal for notifying the generated power of the generator 420. The remaining fuel signal is a signal for notifying the remaining fuel amount of the generator 420.

The input state signal is a signal for notifying whether the load is on (on) or off (off). The on / off control signal is a signal for controlling on or off of the load.
The relay device 100 transmits and receives each signal to and from the management target facility through contact and analog communication, communication by various transmissions, and the like. Further, the relay device 100 exchanges signals with the monitoring control device 200 and the terminal device 300 via the monitoring control network 900.

The supervisory control system 1 of the present embodiment performs control in consideration of the balance between the operation continuation possible time of the generator 420 and the importance of the load to be supplied with power.
For example, a commercial power outage may occur due to the Great East Japan Earthquake, etc., and there is a possibility that neither power recovery nor fuel supply for emergency generators can be expected for a while. In such a situation, there is a case where it is required to extend the operation continuation time of the generator even if the load for supplying power is limited rather than the operation that makes the best use of the efficiency of the generator. . In the supervisory control system 1, the generator 420 continues to supply power depending on the importance of the safety / general load 520 and the remaining capacity when power is supplied to the security / general load 520 in addition to the emergency load 510. The on / off control of the security / general load 520 is performed in consideration of the possible time.

  In particular, the supervisory control system 1 performs control in consideration of the balance between the operation continuation possible time by a plurality of generators and the importance of the load of the power supply target. For example, when the remaining fuel amount of the generator 421 is small, the monitoring and control apparatus 200 supplies electric power from the generator 422 to the emergency load 511 and the security / general load 521 as the generators 421 and 422 as a whole. Extend the duration of operation. In addition, when the remaining fuel amount of the generator 422 is small, the monitoring control device 200 supplies power from the generator 421 to the emergency load 512 and the security / general load 522 as the generators 421 and 422 as a whole. Extend the duration of operation.

FIG. 2 is a schematic block diagram illustrating a functional configuration of the relay device 100. The relay device 100 includes a signal input / output unit 110, a signal conversion processing unit 120, and a communication processing unit 130. The signal input / output unit 110 transmits and receives signals by communicating with the monitoring control target equipment. The signal conversion processing unit 120 converts a signal with the monitoring control target facility into a monitoring control signal that can be handled by the monitoring control system 1. For example, the signal conversion processing unit 120 converts a contact signal into a digital signal. Further, the signal conversion processing unit 120 converts a monitoring control signal handled by the monitoring control system 1 into a signal between the monitoring control target equipment.
The communication processing unit 130 transmits and receives signals via the monitoring control network 900.

FIG. 3 is a schematic block diagram illustrating a functional configuration of the monitoring control device 200. The monitoring control device 200 includes a communication unit 210, a storage unit 260, and a control unit 270. The control unit 270 includes a storage unit control unit 271, an operation continuation possible time acquisition unit 272, a continuable generation power information acquisition unit 273, a power reception relation information acquisition unit 274, a display instruction unit 275, and a power reception control process. Part 276.
The monitoring control device 200 is configured using, for example, a computer. The monitoring control device 200 corresponds to an example of a generator monitoring device.

The communication unit 210 performs communication via the monitoring control network 900. In particular, the communication unit 210 corresponds to an example of a remaining fuel information acquisition unit, and receives a remaining fuel signal transmitted from each of the generators 420. The remaining fuel signal is a signal indicating remaining fuel information. That is, the remaining fuel signal indicates the amount of remaining fuel in each of the generators 420.
The communication unit 210 corresponds to an example of a currently generated power information acquisition unit, and receives a generated power signal transmitted by each of the generators 420. The generated power signal is a signal indicating generated power information. That is, the generated power signal indicates the generated power of each of the generators 420.

  Further, the communication unit 210 receives the control setting input by the user from the terminal device 300. The control setting includes one or more of the operation continuation target time and load management data. The operation continuation target time is a target time for continuing power supply from the generator 420 to the load. The load management data indicates the load capacity and priority of each load. In this embodiment, the load is divided into control target load groups, and the load capacity and priority are managed for each load group.

  FIG. 4 is a diagram illustrating an example of load management data. The load management data is information in which a load group is associated with a priority order and a rated load of the group. In the figure, the emergency load 510 is registered in the load management data as the load group having the highest priority. The emergency load 510, which has the highest priority, is a target to which power is to be supplied at all times, and is not subject to on / off control. Generally, the security load and the general load are considered to have a lower priority than the emergency load 510, but the security load may have the same priority as the emergency load 510.

The storage unit 260 stores various types of data such as an operation continuation target time and load management data. The storage unit 260 is configured using a storage device included in the monitoring control apparatus 200.
In particular, the storage unit 260 stores necessary fuel information indicating the relationship between the generated power and the fuel consumption for each of the generators 420.

FIG. 5 is a diagram showing an example of necessary fuel information. In the necessary fuel information, the generated power is associated with the fuel consumption per unit time when the generator 420 generates the generated power. In the graph of FIG. 5, the relationship between the output of the generator and the fuel consumption per unit time is shown as a characteristic curve.
The storage unit 260 may store the necessary fuel information as long as it can output the fuel consumption per unit time with respect to the input of the generated power. For example, the storage unit 260 may store the required fuel information in a table format. Or you may make it the memory | storage part 260 memorize | store a required fuel information by numerical formula.

The control unit 270 controls each unit of the monitoring control device 200 to perform various processes. The control unit 270 is configured by, for example, a CPU (Central Processing Unit) provided in the monitoring control device 200 reading out a program from the storage unit 260 and executing the program.
The storage unit control unit 271 performs various controls on the storage unit 260 such as reading, writing, and searching of data with respect to the storage unit 260. In particular, the storage unit control unit 271 writes the control settings received by the communication unit 210 in the storage unit 260.
The storage unit control unit 271 corresponds to an example of a priority information acquisition unit, and acquires the priority information stored in the storage unit 260. The priority information here is information indicating the priority set for each load. As described above, in this embodiment, loads are divided into control target load groups, and priorities are assigned to the load groups. The storage unit control unit 271 corresponds to an example of a necessary fuel information acquisition unit, and reads out necessary fuel information from the storage unit 260.

  The operation continuation possible time acquisition unit 272 obtains an operation continuation possible time indicating a time during which a plurality of generators can supply power to the designated load based on the remaining fuel information and the necessary fuel information. For example, the operation continuation possible time acquisition unit 272 determines the time until the fuel is exhausted when the power generated by the generators 421 and 422 is adjusted so that the fuel of the generator 421 and the fuel of the 422 are eliminated at the same time. Obtained as possible time.

FIG. 6 is a diagram illustrating an example of a relationship between the ratio of the generated power between the generators 421 and 422 and the operation continuation possible time. In the figure, the horizontal axis indicates the ratio of power generated by the generators 421 and 422, and the vertical axis indicates the operation continuation possible time. On the horizontal axis, the ratio of the generator 421 is larger on the left side in FIG. 6, and the ratio of the generator 422 is larger on the right side.
A line L11 indicates the relationship between the ratio of the generated power in the generator 421 and the operation continuation possible time. A line L12 indicates the relationship between the ratio of the generated power in the generator 422 and the operation continuation possible time. A point P11 where the lines L11 and L12 intersect is a point indicating that the fuel of the generator 421 and the fuel of the generator 422 are simultaneously lost. The operation continuation possible time at the point P11 is T11, and the ratio of the generated power is R. In the example of FIG. 6, the operation continuation possible time acquisition unit 272 calculates T11 as the operation continuation possible time.

  Of the emergency loads 511 and 512 and the safety / general loads 521 and 522 that can be supplied with power from the generators 421 and 422, when the load for supplying power is specified, the necessary power is obtained. When the ratio of distributing the necessary power to the generators 421 and 422 is determined, the generated power of each of the generators 421 and 422 can be obtained. By converting the generated power into fuel consumption per unit time using the required fuel information, and dividing the remaining fuel amount by the fuel consumption per unit time, the operation continuation time of each of the generators 421 and 422 can be obtained. .

Lines L11 and L12 in FIG. 6 illustrate examples in which the operation continuation possible times of the generators 421 and 422 are obtained for each power ratio in a state where a load for supplying power is selected.
As described above, the operation continuation possible time acquisition unit 272 determines the operation continuation possible time indicating the time during which the generators 421 and 422 can supply power to the designated load based on the remaining fuel information and the necessary fuel information. Ask.

  Note that the operation continuation possible time acquisition unit 272 uses the amount of fuel indicated by the remaining fuel information for the generators 421 and 422 as the necessary fuel information for the time during which power generation indicated by the currently generated power information can be continued. You may make it ask | require based on. In this case, the operation continuation possible time acquisition unit 272 calculates the operation continuation possible time when, for example, a load that is currently supplied with power is maintained as a load to be supplied with power.

  The continuable generated power information acquisition unit 273 obtains the generated power of each generator for achieving the operation continuation possible time based on the remaining fuel information and the necessary fuel information. For example, in the example of FIG. 6 described above, the continuable generated power information acquisition unit 273 multiplies the total power supplied to the load to be supplied with power by the ratio shown in the graph of FIG. The generated power of each of 422 is calculated.

The power supply related information acquisition unit 274 is a load receiving power supply from the generator 420 such that the power supplied to the load by the generator 420 is equal to or less than the generated power obtained by the sustainable power generation information acquisition unit 273. The power reception related information indicating the combination is acquired based on the priority information.
For example, the power reception related information acquisition unit 274 sets the operation continuation time calculated by the operation continuation time acquisition unit 272 using the current conduction / cutoff state of the current power supply target as the initial state. Repeat the power supply target load reduction until the duration target time is reached. In the present embodiment, the power reception related information acquisition unit 274 is configured to cut off the load by setting the supply of power from the generator 420 to be cut off in order from the group with the lowest priority in units of load groups. Do.

  The display instruction unit 275 instructs the terminal device 300 to display an image. In particular, the display instruction unit 275 instructs display of a control setting input screen, which will be described later, and display of a control state display screen. For example, in the instruction to display the control state display screen, the display instruction unit 275 causes the terminal device 300 to display information on the current control state. The control state information includes the current value of the generated power of the generator 420 and the operation continuation possible time, the load input level, and the load group on / off state. The load input level indicates how much power is supplied to a load having a priority order. The load group on / off state indicates whether power is supplied to each load group (on) or whether power is cut off (off).

  The power reception control processing unit 276 controls the generated power of each of the generators 420 and controls whether or not power is supplied from the generator 420 to each device included in the security / general load 520. For example, the power reception control processing unit 276 controls each of the generators 420 to generate power with the generated power calculated by the continuable generated power information acquisition unit 273. In addition, the power reception control processing unit 276 controls the presence / absence of power supply from the generator 420 to the load based on the power reception relationship information acquired by the power reception relationship information acquisition unit 274.

FIG. 7 is a schematic block diagram illustrating a functional configuration of the terminal device 300. The terminal device 300 includes a communication unit 310, an operation input unit 320, a display unit 330, a storage unit 360, and a control unit 370. The control unit 370 includes a control state display screen processing unit 371 and a control setting input screen processing unit 372.
The terminal device 300 is configured using a computer, for example.

The communication unit 310 performs communication via the monitoring control network 900. The operation input unit 320 includes operation devices such as buttons, a keyboard, and a mouse, for example, and receives user input operations. The display unit 330 has a display screen such as a liquid crystal panel, for example, and displays various images.
The storage unit 360 stores various information such as a program executed by the control unit 370.

  The control unit 370 controls each unit of the terminal device 300 and executes various processes. For example, the control unit 370 is configured by a CPU included in the terminal device 300 reading out a program from the storage unit 360 and executing the program.

  FIG. 8 is a diagram illustrating an example of a control setting input screen displayed by the terminal device 300. The control setting input screen shown in the figure includes a power supply continuation target time setting field A11. Further, the control setting input screen includes one or more sets of a load group setting field A12, a priority setting field A13, and a load capacity setting field A14. In addition, the control setting input screen includes a setting button A15 for instructing the monitoring control apparatus 200 to set the input control setting.

When the load capacity is known and the storage unit 260 stores the load capacity in advance, the load capacity setting field A14 may not be included in the control setting input screen.
Further, FIG. 8 shows an example of a control setting input screen for setting the operation continuation target time and the load common to the facilities A and B. On the other hand, the terminal apparatus 300 is displayed on the control setting input screen common to the facilities A and B so that the user can select whether the facilities A and B perform the monitoring control or the facilities individually. In addition, the control setting input screens for the facilities A and B may be displayed.

FIG. 9 is a diagram illustrating an example of a control state display screen displayed by the terminal device 300. The control state display screen shown in the figure includes a display of the current generated power value of the generator 420 and the operation continuation possible time for each of the facilities A and B. FIG. 9 shows an example in which the power generation of the generators 421 and 422 is controlled so that the fuel of the generator 421 and the fuel of the 422 are eliminated at the same time, and the same operation can be continued in the facilities A and B. It's time.
Further, the control state display screen includes a display of a load application level and a load group on / off state.

Next, the operation of the monitoring control system 1 will be described.
First, a user registers a control setting in the monitoring control device 200 using the terminal device 300. When the user inputs a control setting execution instruction using the operation input unit 320 of the terminal device 300, the control setting input screen processing unit 372 transmits a control setting inquiry to the monitoring control device 200 via the communication unit 310.

  In the monitoring control device 200, the storage unit control unit 271 reads the current control setting from the storage unit 260 and returns the read control setting to the terminal device 300 via the communication unit 210. The control setting input screen processing unit 372 of the terminal device 300 causes the display unit 330 to display a control setting input screen in which the control settings received by the communication unit 310 from the monitoring control device 200 are set to buttons and setting fields by default.

  The user inputs one or more of the operation continuation target time, load group priority, and load capacity of the generator 420 by the operation input unit 320 of the terminal device 300, and selects the setting button A15. The control setting input screen processing unit 372 transmits the control setting changed by the user input to the monitoring control device 200 via the communication unit 310. The storage unit control unit 271 of the monitoring control device 200 registers the control setting received by the communication unit 210 from the terminal device 300 in the storage unit 260. Note that the user can change the control settings at any time.

  When a commercial power failure occurs, the generator 420 supplies power to the emergency load 510. Control of power supply from the generator 420 to the emergency load 510 may be performed in the on-site panel side sequence of the power receiving / transforming equipment 410. Alternatively, the relay device 100, the monitoring control device 200, or another control device may control power supply from the generator 420 to the emergency load 510.

FIG. 10 is a flowchart showing the monitoring control process of the monitoring control apparatus 200. The supervisory control apparatus 200 starts the supervisory control process shown in the figure after the power failure process for switching the power supply system from the normal system to the emergency system is completed. In the switching of the power supply system in the power failure process, each of the circuit breakers 820 is switched from the conduction state to the interruption state, and the circuit breaker 840 is switched from the interruption state to the conduction state.
Further, the supervisory control system 1 ends the supervisory control process of FIG.

In the process of FIG. 10, the power reception control processing unit 276 activates each of the generators 420 (step S101).
Next, the operation continuation possible time acquisition part 272 calculates the operation continuation possible time of the generator 420 (step S102). In step S102, the operation continuation possible time acquisition unit 272 calculates the operation continuation possible time when all the generators 420 maintain the current output.
And the display part 330 of the terminal device 300 displays the driving | running | working continuation possible time calculated by step S102 according to the instruction | indication from the display instruction | indication part 275 (step S103).

Next, the control unit 270 determines whether or not the operation continuation target time is set (step S104).
When it is determined that the operation continuation target time is not set (step S104: NO), the control unit 270 determines whether or not the commercial power source has recovered (step S131).
When it is determined that the commercial power supply has recovered (step S131: YES), the processing in FIG. The monitoring control system 1 that has finished the processing in FIG. 10 performs switching processing from the power of the generator 420 to the commercial power. Specifically, the monitoring control system 1 brings the circuit breaker 820 into a conducting state, stops the generator 420, and puts the circuit breaker 840 into a breaking state.

On the other hand, when it is determined in step S131 that the commercial power source has not recovered power (step S131: NO), the process returns to step S102.
On the other hand, in step S104, when it is determined that the continuous driving target time is set (step S104: YES), the control unit 270 _determines whether _t E -t ≧ 0 is satisfied (step S111) . Here, t _E represents the operation continuation time when electric power is supplied only to each of the emergency loads 510 with the current remaining fuel amount (therefore, electric power is not supplied to the safety / general load 520). Show. Further, t represents the power generation target time. Therefore, in step S111, the control unit 270 determines whether or not the operation continuation target time can be achieved when power is supplied only to each of the emergency loads 510.

In step S111, when it is determined that t _E −t ≧ 0 is not satisfied (step S111: NO), the display unit 330 of the terminal device 300 displays an error message indicating fuel shortage (step S121). After step S121, the process proceeds to step S131.
On the other hand, when it is determined in step S111 that t _E −t ≧ 0 is satisfied (step S111: YES), the control unit 270 determines whether or not t−t _D ≧ 0 is satisfied (step S112). Here, t _D shows the operation continuation time of the case where each of the generator 420 is subjected to generation of rated power at the current remaining fuel quantity.

When it is determined that t−t _D ≧ 0 is not satisfied (step S112: NO), the process proceeds to step S131.
On the other hand, when it is determined that t−t _D ≧ 0 is established (step S112: YES), the power reception control processing unit 276 performs (W _D) in the security / general load 520 to achieve the operation continuation target time. The load having the capacity of −W _t ) × t _D is cut off (step S113). The interruption here is to stop the supply of electric power.

Here, W _D indicates the rated power of the generator of each of the generator 420. The rated power may be different for each generator or the same. W _t is generated power that can achieve the operation continuation target time of each of the generators 420.
In step S113, the power reception control processing unit 276 reduces the surplus of the power consumption of the load with respect to the generated power that can achieve the power generation target time.
After step S113, the process proceeds to step S131.

FIG. 11 is an explanatory diagram of an example of extending the operation continuation time by cutting off the power consumption of the load.
In the figure, the horizontal axis indicates the operation continuation possible time, and the vertical axis indicates the generated power. Further, W _E indicates the power generated when the power supply only to the corresponding emergency load. The corresponding emergency load here is an emergency load 510 in the same facility as the generator 420. An emergency load corresponding to the generator 421 is an emergency load 511, and an emergency load corresponding to the generator 422 is an emergency load 512. Further, t _E is the current operation continuation time with remaining fuel when power is supplied only to the corresponding emergency load.
By cutting off the power consumption of the load, fuel corresponding to the amount of power in the region A21 becomes unnecessary, and this fuel extends the operation time for the region A22. Thereby, the driving continuation target time t can be achieved.

As described above, electric power can be supplied from either the generator 421 or 422 to the emergency load 510 and the security / general load 520 while the circuit breaker 840 is in conduction. And the communication part 210 receives the remaining fuel information which shows the quantity of the remaining fuel of each generator 421,422 with a remaining fuel signal. In addition, the storage unit control unit 271 reads out necessary fuel information indicating the relationship between the generated power of each of the generators 421 and 422 and the fuel consumption from the storage unit 260. Then, the operation continuation possible time acquisition unit 272 indicates the operation continuation possible time indicating the time during which the generators 421 and 422 can supply power to the power load specified by the load management data and the load input level, and the remaining fuel information. And necessary fuel information.
In this way, the monitoring control device 200 acquires the operation continuation possible time indicating the time during which the plurality of generators can supply additional power. With reference to this operation continuation time, it can be determined automatically or manually whether the required operation continuation time is secured. Furthermore, when there is a generator that does not ensure the necessary operation continuation time, a plurality of generators can be operated automatically or manually so as to increase the operation continuation possible time of the generator. In this respect, the monitoring and control apparatus 200 can support the operation of the plurality of generators so as to increase the operation continuation time of the generator that does not secure the necessary operation continuation time among the plurality of generators. it can.

Further, the continuable generated power information acquisition unit 273 acquires the generated power of each generator 420 for achieving the operation continuation possible time based on the remaining fuel information and the necessary fuel information.
Based on the generated power calculated by the continuable generated power information acquisition unit 273, the generator 420 is automatically or manually controlled to supply power to the specified power load obtained by the operation continuable time acquisition unit 272. Possible operation continuation time can be realized.

In addition, the storage unit control unit 271 reads priority information indicating the priority set for each of the security and general loads 520 to which the generator 420 can supply power from the storage unit 260. Then, the power supply related information acquisition unit 274 is configured to ensure that the power supplied from the generator 420 to the safety / general load 520 is equal to or less than the generated power calculated by the sustainable power generation information acquisition unit 273. Based on the priority information, power receiving relation information indicating a combination of loads that receive power supplied from the generator 420 among the loads included in the general load 520 is acquired.
By controlling the generator 420 automatically or manually based on the power reception relation information obtained by the power receipt relation information acquisition unit 274, power is supplied to the specified power load obtained by the operation continuation possible time acquisition unit 272. It is possible to realize a supplyable operation continuation time.

In addition, the communication unit 210 acquires generated power information indicating each generated power of the generator 420. Based on the necessary fuel information, the operation continuation possible time acquisition unit 272 calculates the time during which the generator 420 can continue the power generation of the power indicated in the currently generated power information with the amount of fuel indicated in the remaining fuel information. Ask.
Thereby, the user can grasp | ascertain the time which can continue the electric power generation with the present generated electric power.

  FIG. 12 is a schematic configuration diagram of a monitoring control device 201 that is a modification of the monitoring control device 200. In the monitoring control apparatus 201 shown in the figure, in addition to the configuration of the monitoring control apparatus 200 shown in FIG. 3, the control unit 280 includes a power generation surplus information acquisition unit 281. Other configurations are the same as those of the monitoring control apparatus 200, and the same reference numerals (210, 260, 271 to 276) as those in FIG. The monitoring control device 201 corresponds to an example of a generator monitoring device.

  For each of the generators 420, the remaining power generation information acquisition unit 281 is able to supply power to the load set as a power supply target by the generator and the operation continuation with the amount of remaining fuel of the generator. Acquired power generation surplus information indicating a long and short relationship with the target time. For example, the power generation surplus information acquisition unit 281 operates each of the generators 420 from the time when power can be supplied to the load set as the power supply target by the generator with the amount of remaining fuel of the generator. The difference obtained by subtracting the continuation target time is calculated as power generation surplus information. When the power generation surplus information is positive or 0, it indicates that the operation continuation target time can be achieved. On the other hand, when the power generation surplus information is negative, it indicates that the operation continuation target time cannot be achieved.

FIG. 13 is a flowchart showing the monitoring control process of the monitoring control apparatus 201. The supervisory control system 1 starts the supervisory control process shown in the figure after the power failure process for switching the power supply system from the normal system to the emergency system is completed. In the switching of the power supply system in the power failure process, each of the circuit breakers 820 is switched from the conduction state to the interruption state, and the circuit breaker 840 is switched from the interruption state to the conduction state.
Also, the supervisory control device 201 ends the supervisory control process of FIG.

  Steps S201 to S204 in FIG. 13 are the same as steps S101 to S104 in FIG. Moreover, when it determines with the driving | running | working continuation target time not being set in step S204 (step S204: NO), it changes to step S261. Step S261 is the same as step S131 of FIG.

On the other hand, when it is determined in step S204 that the operation continuation target time is set (step S204: YES), the control unit 280 determines whether t _EA −t ≧ 0 holds for the generator 421. (Step S211). Here, t _EA is the operation in the case where electric power is supplied only to each of the emergency loads 511 with the current remaining fuel amount of the generator 421 (therefore, no electric power is supplied to the security / general load 521). Indicates the continuation time. The generator 421 that is the generator of the facility A is also referred to as a generator A.

In step S211, when it is determined that t _EA −t ≧ 0 is satisfied (step S211: YES), the control unit 280 determines whether or not t−t _DA ≧ 0 is satisfied (step S212). Here, t _DA indicates the operation continuation possible time when each of the generators 420 generates rated power with the current remaining fuel amount of the generator 421.

If it is determined that t−t _DA ≧ 0 is not satisfied (step S212: NO), the process proceeds to step S261.
On the other hand, when it is determined that t−t _DA ≧ 0 is established (step S212: YES), the power reception control processing unit 276 performs (W _DA) in the security / general load 521 to achieve the operation continuation target time. The load having the capacity of −W _t ) × t _DA is cut off (step S213). The interruption here is to stop the supply of electric power.

Here, W _DA indicates the rated power of power generation by the generator 421. The rated power may be different for each generator or the same. W _t is generated power that can achieve the operation continuation target time of each of the generators 420.
In step S213, the power reception control processing unit 276 reduces the surplus power consumption of the load with respect to the generated power that can achieve the power generation target time.
After step S213, the process proceeds to step S261.

On the other hand, when it is determined in step S211 that t _EA −t ≧ 0 is not satisfied (step S211: NO), the control unit 280 determines whether or not the facility A and the facility B are set to share the generator. Is determined (step S221). For example, the user performs a setting operation as to whether or not the generator is shared in the terminal device 300, and the storage unit 260 stores whether or not the generator is shared. Then, the control unit 280 refers to the storage unit 260 and determines whether or not the generator is shared.

If it is determined that the setting is not to share the generator (step S221: NO), the terminal device 300 displays an error message indicating fuel shortage in accordance with the instruction from the display instruction unit 275 (step S251). In this case, the remaining fuel of the generator 421 is insufficient.
After step S251, the process proceeds to step S261.
On the other hand, if it is determined in step S221 that the generator is set to be shared (step S221: YES), the control unit 280 determines whether t _EB −t ≧ 0 holds for the generator 422. Determination is made (step S222). Here, t _EB can continue operation when power is supplied only to the emergency load 512 with the current remaining fuel amount of the generator 422 (and therefore, power is not supplied to the safety / general load 522). Show time. The generator 422 that is the generator of the facility B is also referred to as a generator B.

When it is determined that t _EB −t ≧ 0 is not satisfied (step S222: NO), the process proceeds to step S251. In this case, the remaining fuel of the generator 422 is insufficient.
On the other hand, when it is determined in step S222 that t _EB −t ≧ 0 is satisfied (step S222: YES), the power generation surplus information acquisition unit 281 determines that W _EB × (t _EB −t) −W _EA × (t−t _It is determined whether or not _EA )> 0 is satisfied (step S223).

Here, _WEB indicates the generated power when the power generator 422 supplies power only to each of the emergency loads 512 (thus, when power is not supplied to the security load / general load 522). Therefore, W _EB × (t _EB −t) indicates the remaining power of the generator 422 (the amount of electric energy when the operation continuation target time t is output to each of the emergency loads 512 only). _WEA indicates the generated power when the generator 421 supplies power only to the emergency load 511. Therefore, W _EA × (t−t _EA ) indicates a shortage of the electric energy when the generator 421 outputs the emergency load 511 for the operation continuation target time t.
As described above, the power generation surplus information acquisition unit 281 determines whether or not the margin of the power amount of the generator 421 is greater than or equal to the shortage of the power amount of the generator 422 in step S223.

If it is determined in step S223 that W _EB × (t _EB −t) −W _EA × (t−t _EA )> 0 is satisfied (step S223: YES), the power reception control processing unit 276 causes the generator B to Control is performed to supply power to the load on the facility A side (step S231). Specifically, the power reception control processing unit 276 causes the generator B to output a margin of electric energy W _EB × (t _EB −t) to the load on the facility A side. More specifically, the power reception control processing unit 276 causes the generator 422 to output the generated power of W _EB × t _EB / t. That is, it is calculated by dividing the amount of power _WEB × (t _EB −t) by the operation continuation target time t, rather than the power W _EB when the generator 422 supplies power to the emergency load 512. The electric power W _EB × (t _EB −t) / t is increased so that the generator 422 outputs the electric power.

In this case, the remainder obtained by subtracting the power supplied to the emergency loads 511 and 512 from the total power supplied by the generators 421 and 422 is W _EB × (t _EB −t) −W _EA described in step S223. X (t-t _EA ). The power reception control processing unit 276 may turn on one of the devices for the security / general load 520 and receive the supply of power corresponding to the remaining power.
After step S231, the process proceeds to step S261.

On the other hand, when it is determined in step S223 that W _EB × (t _EB −t) −W _EA × (t−t _EA )> 0 is not satisfied (step S223: NO), the control unit 280 can supply power. The time t ^* is calculated and displayed on the terminal device 300 (step S241). Specifically, the power generation surplus information acquisition unit 281 calculates t ^{* at} which W _EB × (t _EB −t ^* ) − W _EA × (t ^* −t _EA ) = 0. Then, the display instruction unit 275 causes the terminal device 300 to display the value of t ^* . This t ^* is an operation continuation possible time when electric power is supplied to the emergency load 510 so that the remaining fuel becomes zero in both the generators 421 and 422.
After step S241, the process proceeds to step S261.

FIG. 14 is an explanatory diagram of an example of a margin of electric energy in the generator 422.
In the figure, the horizontal axis indicates the operation continuation possible time, and the vertical axis indicates the generated power. _WEB indicates generated power when the generator 422 supplies power only to the emergency load 512. Further, t _EB is the time that the generator 422 can continue to operate with the remaining fuel when supplying power only to the emergency load 512. A margin of electric energy W _EB × (t _EB −t) in the generator 422 corresponds to the region A31.

FIG. 15 is an explanatory diagram of an example of a shortage of electric power in the generator 421.
In the figure, the horizontal axis indicates the operation continuation possible time, and the vertical axis indicates the generated power. _WEA indicates the generated power when the generator 421 supplies power only to the emergency load 511. Further, t _EA is a time during which the generator 421 can continue to operate with the remaining fuel when supplying power only to the emergency load 511. The power shortage W _EA × (t−t _EA ) in the generator 421 corresponds to the region A32.
By supplementing this shortage with a margin of electric energy shown in FIG. 14, the time for supplying electric power to the emergency load 511 can be extended as compared with the case where only the generator 421 is used.

As described above, the power generation surplus information acquisition unit 281 acquires power generation surplus information. The power generation surplus information here refers to the time during which power can be supplied to the power load set as the power supply target by the generator for each of the generators 421 and 422 with the amount of remaining fuel of the generator. This is information indicating a long and short relationship with the target continuation time of power supply.
Then, the power reception related information acquisition unit receives the remaining fuel from the generator that has more remaining fuel than the amount necessary to achieve the operation continuation target time than the amount necessary to achieve the operation continuation target time. Based on the power generation surplus information, power reception related information indicating that power is supplied to a power load to be supplied by a small number of generators.
Thereby, when the remaining fuel is insufficient in the facility B, power can be supplied from the generator 421 of the facility A, and the time during which power can be supplied is made longer than in the case where only the generator 422 is used. Can do.

In FIG. 13, the case where the generator 422 supplies power to the facility A has been described as an example. However, in addition to or instead of this, the generator 421 may supply power to the facility B. .
In the process of FIG. 13, the criterion for determining whether or not the generator 422 supplies power to the facility A is that the generator 422 supplies power to the emergency load 512 for the operation continuation target time t described in step S222. It is not limited to whether there is room to supply. For example, the generator 422 may supply electric power at the rated power for the operation continuation target time t to determine whether there is a margin. In this case, in step S222, the control unit 280 determines whether or not t _DB −t ≧ 0 holds for the generator 422. Here, t _DB indicates the operation continuation possible time when the generator 422 generates power with the rated power.

  You may make it implement | achieve a part or all of the function of the relay apparatus 100 in the embodiment mentioned above, the monitoring control apparatuses 200 and 201, and the terminal device 300 with a computer. In that case, a program for realizing this function may be recorded on a computer-readable recording medium, and the program recorded on this recording medium may be read into a computer system and executed. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory inside a computer system serving as a server or a client in that case may be included and a program held for a certain period of time. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 100 ... Relay apparatus, 110 ... Signal input / output part, 120 ... Signal conversion process part, 130 ... Communication processing part, 200, 201 ... Monitoring control apparatus, 210 ... Communication part, 260 ... Memory | storage part, 270 ... Control part, 271 ... Storage unit control unit, 272 ... operation continuation possible time acquisition unit, 273 ... continuation possible generation power information acquisition unit, 274 ... power reception related information acquisition unit, 275 ... display instruction unit, 276 ... power reception control processing unit, 281 ... power generation Remaining power information acquisition unit, 300 ... terminal device, 310 ... communication unit, 320 ... operation input unit, 330 ... display unit, 360 ... storage unit, 370 ... control unit, 371 ... control state display screen processing unit, 372 ... control setting input Screen processing unit, 410, 411, 412 ... Substation equipment, 420, 421, 422 ... Generator, 510, 511, 512 ... Emergency load, 520, 521, 522 ... Security / general Load, 900 ... monitor and control network

Claims (7)

For a plurality of generators that can supply power to the power load, a remaining fuel information acquisition unit that acquires remaining fuel information indicating the amount of remaining fuel of each generator;
A required fuel information acquisition unit for acquiring required fuel information indicating the relationship between the generated power and fuel consumption of each generator;
An operation continuation time acquisition unit that acquires an operation continuation time indicating a time during which the plurality of generators can supply power to an electric power load based on the remaining fuel information and the necessary fuel information;
A generator monitoring device comprising:   2. The power generation according to claim 1, further comprising a continuable generated power information acquisition unit configured to acquire the generated power of each generator for achieving the operation continuation time based on the remaining fuel information and the necessary fuel information. Machine monitoring device. A priority information acquisition unit for acquiring priority information indicating a priority set for each of a plurality of power loads to which the generator can supply power;
A power supply relationship indicating a combination of power loads that receive power supplied from the generator such that the power supplied by the generator to the power load is equal to or less than the generated power determined by the continuable generated power information acquisition unit A power reception related information acquisition unit for acquiring information based on the priority information;
The generator monitoring device according to claim 2, further comprising: For each of the plurality of generators, obtain power generation surplus information that indicates whether or not power can be continuously supplied for a predetermined target time to a power load set as a power supply target. And
Electric power is supplied from a generator that has more residual fuel than the amount necessary to achieve the target time to a power load to be supplied by a generator that has less residual fuel than the amount necessary to achieve the target time. A power receiving relation information obtaining unit for obtaining power receiving relation information indicating supply based on the power generation surplus information;
The generator monitoring device according to claim 1, further comprising: A current generated power information acquisition unit for acquiring generated power information indicating the generated power of the plurality of generators;
The operation continuation possible time acquisition unit uses, as the necessary fuel information, a time during which the plurality of generators can continue to generate power indicated by the generated power information with the amount of fuel indicated in the remaining fuel information. The generator monitoring apparatus according to any one of claims 1 to 4, wherein the generator monitoring apparatus is obtained on the basis of any of the above. A generator monitoring method for a generator monitoring device, comprising:
For a plurality of generators capable of supplying power to the power load, a remaining fuel information acquisition step of acquiring remaining fuel information indicating the amount of remaining fuel of each generator;
A required fuel information acquisition step for acquiring required fuel information indicating the relationship between the generated power and fuel consumption of each generator;
An operation continuation time acquisition step for acquiring, based on the remaining fuel information and the necessary fuel information, an operation continuation time that indicates a time during which the plurality of generators can supply power to a specified power load;
A generator monitoring method comprising: On the computer,
For a plurality of generators capable of supplying power to the power load, a remaining fuel information acquisition step of acquiring remaining fuel information indicating the amount of remaining fuel of each generator;
A required fuel information acquisition step for acquiring required fuel information indicating the relationship between the generated power and fuel consumption of each generator;
An operation continuation time acquisition step for acquiring, based on the remaining fuel information and the necessary fuel information, an operation continuation time that indicates a time during which the plurality of generators can supply power to a specified power load;
A program for running

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