JP2009240096A - Power system simulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power system simulator which can perform realistic simulation, considering a wide range of states of a power system, and can be used for training involving a plurality of power supply control places. <P>SOLUTION: The power system simulator 1 includes a plurality of computers 2α-2δ which can communicate with each other, each computer including a storage means 4α-4δ which can store equipment data 12α-12δ which indicate the state of equipment belonging to a power system model. The power system simulator 1 also includes control means 10α-10δ. The storage means 4α-4δ store equipment data 12α-12δ relating to equipment belonging to a different segment of the power system model as equipment-under-administration data. The control means 10α-10δ obtain other equipment data 12α-12δ than the equipment-under-administration data from other computers 2α-2δ having the equipment data 12α-12δ and store the data as equipment-out-of-administration data, and calculate and update the equipment-under-administration data using the equipment-under-administration data or equipment-out-of-administration data. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a power system simulator that simulates a power system model for training and the like assuming the occurrence of a power outage related to power system monitoring and control.

  As a conventional power system simulator, one described in Patent Document 1 below is known. In this electric power system simulator, simulation data such as recovery from an accident is possible by using accident data related to simulation and displaying an accident simulation operation state on a display. Here, the accident data is configured based on monitoring data relating to transformers, buses, etc. belonging to the jurisdiction of the power system at a predetermined power supply control station.

Japanese Patent No. 4018392

  In such a power system simulator, the accident data related to the simulation is configured based on monitoring data that covers only within the jurisdiction of a certain power supply control station. It is not possible to perform a realistic simulation considering the influence from the external system status. Therefore, even if such a power system simulator is used for training, training assuming a large-scale blackout involving a plurality of power supply control stations cannot be performed.

  Also, in such a power system simulator, it is conceivable to input a change expected from the external system status to the simulator in order to perform a simulation in consideration of the influence from the external system status. However, it is difficult to predict the state of the external system and its changes in detail and reflect this, resulting in a relatively unrealistic simulation. Even if such a simulation is used for training, it is not effective in training under a simulation that lacks realism, and it puts a burden on the trainer (teacher, trainer) who predicts and inputs external changes. End up.

  Therefore, the inventions described in claims 1 and 2 are capable of realistic simulation in consideration of the situation of a wide range of power systems, and have a realistic feeling assuming a large-scale power outage involving a plurality of power supply control stations. The purpose is to provide a power system simulator that can be used for monitoring control and information transmission training.

  In order to achieve the above object, the invention described in claim 1 includes a plurality of computers that can communicate with each other, and each of the computers has communication means for performing the communication and states of devices belonging to the power system model. Storage means capable of storing the device data to be represented, and control means for controlling these means, wherein each of the storage means stores the device data relating to devices belonging to different categories of the power system model. And each control means obtains the device data other than the jurisdiction device data possessed by the storage means to be controlled from the other computer having the device data via the communication means to be controlled. And stored in the storage means as out-of-jurisdiction device data, and stored in the storage means to be controlled or out of the jurisdiction Using vessel data, is characterized in that the updating by calculating the jurisdiction device data.

  In order to achieve the above object, the invention described in claim 2 includes a computer capable of communicating with another computer, and the computer represents a communication means for performing the communication and a state of a device belonging to the power system model. Storage means capable of storing device data, and control means for controlling these means, wherein the storage means stores the device data relating to devices belonging to any category of the power system model as jurisdiction device data The control unit obtains the device data other than the jurisdiction device data included in the storage unit from the other computer having the device data via the communication unit, and obtains the device data as non-jurisdiction device data. Using the jurisdiction device data or the non-jurisdiction device data stored in the storage means and stored in the storage means, the jurisdiction device Is characterized in that the updating by calculating the over data.

  In order to achieve the object of further improving the efficiency of the simulation without losing accuracy, in addition to the above object, the invention described in claim 3 is the above invention, wherein a part of the device data outside the jurisdiction is It represents a combined state of a plurality of devices.

  According to a fourth aspect of the present invention, in addition to the above object, in order to achieve the object of realizing efficient communication while maintaining accuracy, in the above invention, the control means includes the device outside the jurisdiction. Only when the data is updated, the device data outside the jurisdiction is acquired from the other computer.

  According to the present invention, a power system model is shared by a plurality of computers to perform calculations related to simulation, and information on other computers necessary for the calculation is referred to by communication. Therefore, it is possible to execute realistic simulation considering the situation of a wider range of power system with better efficiency than simulation by a single computer, and large scale involving multiple power supply control stations. There is an effect that training assuming a power failure can be realized at the place of installation of each computer without being gathered in one place.

  Hereinafter, an example of an embodiment according to the present invention will be described with reference to the drawings as appropriate. In addition, the form of this invention is not limited to these examples.

[Configuration of power system simulator]
FIG. 1 is a block diagram of a power system simulator (hereinafter referred to as “simulator”) 1, and the simulator 1 includes four computers 2α to 2δ that can communicate with each other. In the simulator 1, the computers 2α to 2δ are connected to each other via the Internet N so as to communicate with each other. Each of the computers 2α to 2δ or a part of them may be connected to a dedicated line or the like.

  The computer 2α is installed in the power supply control station α, and includes a storage unit 4α, a display unit 6α, an input unit 8α, a communication unit 9α, and a control unit 10α that controls them. Examples of the storage unit 4α include a hard disk, a memory, and various recording media. Examples of the display means 6α include one or more displays and projectors. Examples of the input means 8α include a keyboard and a pointing device. An example of the communication means 9α is a modem. An example of the control means 10α is a CPU.

  In addition to the simulation program 11α executed by the control means 10α, the storage means 4α stores device data 12α described in detail later. The control means 10α can perform communication over the Internet N by controlling the communication means 9α. The computers 2β to 2δ are the same as the computer 2α except for the installation location. Hereinafter, the reference numerals of the respective parts are appropriately denoted as 4β or the like.

[Power system model or equipment data]
A power system model handled by the simulator 1 is shown in FIG. The power system model is configured by appropriately connecting a plurality of substations (electrical stations) having circuit breakers, transformers, and the like with transmission lines. The voltage class is 500 kilovolt (kV) · 275 kV · 154 kV · 77 kV in order from the upper system. In FIG. 2, the substation is labeled with a sign such as <A change>, and the circuit breaker is synthesized with codes (A to D) and serial numbers corresponding to the subordinate code and voltage class from the upper to the lower. A code (A A 1 etc.) is attached. Further, although the power transmission line is not labeled, hereinafter, the voltage class code and the substation codes at both ends are combined and referred to as a BF line (corresponding to the power transmission line between BF).

  Note that in the original power system, various devices and the like have a multiplex configuration, but in this model, a single configuration is used in order to perform simplification with little influence on accuracy. Similarly, a generator is connected everywhere in the original power system, but in this model, electricity is supplied from a generator connected to the highest voltage class (500 kV).

  FIG. 3 shows the jurisdiction of each power supply control station in the power system model of FIG. Each power supply control station is allowed to operate only the devices belonging to its own jurisdiction in principle in light of the reality.

  The power supply control station α is higher than the power supply control stations β to δ, and mainly the devices related to the voltage class of 500 kV and 275 kV (<A change>, <B change> to <C change> to <F> (Equipment related to each part). On the other hand, the power supply control station β is in charge of the downstream with respect to the power supply control station α, and has jurisdiction over equipment related to a voltage class of 77 kV (equipment related to a part of <C change>). On the other hand, the power supply control station γ is in charge of the downstream with respect to the power supply control station α, and mainly includes devices related to the voltage class of 154 kV and 77 kV (<D change> to <E change>, and downstream < G change> and <H change> and further downstream <J change> equipment). The power supply control station δ is in charge of the downstream with respect to the power supply control station α, and is mainly a device related to a voltage class of 154 kV and 77 kV (part of <F change> and <I change> downstream thereof or further downstream. (Equipment related to <K change>).

  Note that beyond the jurisdiction, <I change> is also located downstream of <E change>, and <K change> is also located downstream of <H change>. Although not exceeding the jurisdiction, <C change> and <D change> are located downstream of <A change>, and <E change> and <F change> are located downstream of <B change>. Furthermore, <J change> is located downstream of <G change> and <H change>. In addition, the <D change> and <E change> are connected by the DE line.

  FIG. 4 is a schematic diagram relating to the device data 12α relating to the state of the device stored in the storage unit 4α of the computer 2α in the power supply control station α. The device data 12α represents the state of the device belonging to the jurisdiction (one of the categories of the power system model) (jurisdiction device data), and represents the state of the device belonging to the adjacent voltage class (154 kV) on the downstream side. (Out of jurisdiction device data). The device data 12α is whether the circuit breaker is in the open state, voltage, frequency, power flow (active / reactive power), system fluctuation, etc., and voltage, frequency, etc. for the transformer as well. Similarly, voltage and frequency. In addition, the load (demand) of equipment belonging to a class lower than the adjacent voltage class (77 kV) is integrated for each substation and included in the equipment data 12α (outside jurisdiction equipment data). Hereinafter, the load in <C change> is set to CL, and the others are similarly set to GL. If the above is reversed, the device data 12α does not have individual data for each device belonging to a non-adjacent voltage class.

  FIG. 5 is a schematic diagram relating to the device data 12β relating to the state of the device stored in the storage unit 4β of the computer 2β in the power supply control station β. The device data 12β also represents the status of devices belonging to the jurisdiction (another category of the power system model) (jurisdiction device data) and the status of devices belonging to the adjacent voltage class (upstream, 275 kV). (Device data outside the jurisdiction). However, the equipment on the upstream side is outside the jurisdiction, but is located at the power supply control station β (transformer / breaker C 2) and the most downstream of the power supply control station α (the connection part with the power supply control station α). In the device data 12β (device data outside the jurisdiction). The further upstream portion is assumed to be an infinite bus and included in the device data 12β (device data outside the jurisdiction). It can be said that the device data 12β does not have data relating to individual devices on the upstream side or the downstream side that are not adjacent to each other.

  FIG. 6 is a schematic diagram relating to the device data 12γ relating to the state of the device stored in the storage unit 4γ of the computer 2γ in the power supply control station γ. Even in the device data 12γ, the state (equipment device data) representing the state of the device belonging to the jurisdiction (other category of the power system model) and the adjacent voltage class (upstream is 275 kV, downstream is 154 kV / 77 kV) It represents the status of the device to which it belongs (device data outside the jurisdiction). The upstream side is the same as the power supply control station β, and in the <D change>, D 1, D 2 and A 2 are also targeted, and in the <E change>, E 1, E 2 and B 1 are also targeted. On the other hand, on the downstream side, it is the same as the power supply control station α, and in particular also targets <I change> equipment downstream of <E change> (except for the most downstream Id 2 to Id 4). Combine downstream loads with I-L, and also target <K variation> devices downstream of <H variation> (excluding the most downstream Kd3 to Kd5) and downstream loads to K -L. The upstream side of the non-adjacent IU 2 is included in the device data 12γ as an infinite bus. In addition, the device data 12γ does not have individual data regarding non-adjacent upstream or downstream devices.

  FIG. 7 is a schematic diagram regarding the device data 12δ relating to the state of the device stored in the storage unit 4δ of the computer 2δ in the power supply control station δ. The device data 12δ is the same as the device data 12γ. In particular, an <E change> device upstream of <I change> is a target, and a virtual circuit breaker * I1 is placed in place of a non-adjacent <E change> upstream <A change>, and a bus above it. Is included in the device data 12δ (device data outside the jurisdiction) as infinity. Also, <H change> equipment (excluding non-adjacent H 1) upstream of <K change> is targeted, and the load below H 1 is set to HL. Note that the device data 12δ does not have individual data relating to upstream or downstream devices that are not adjacent to each other.

[Operation in single mode]
An operation example in the case where the simulator 1 is used for independent training at the power supply control station α or the like (single mode) will be described below. Here, the single training generally refers to the power supply control station α, and with respect to the power system model of FIG. 2, under the guidance of the trainer, simulates that a certain device has failed in the computer 2α, Trainees (trainees and students) operate any device for the purpose of avoiding power outages, etc., and based on this operation, cause the computer 2α to simulate changes in the state of devices belonging to the power system, etc. The operation or simulation is repeated, but the same applies to the power supply control stations β to δ. In addition, it is preferable that the simulator 1 can be operated in the single mode from the viewpoint of utilizing the computer 2α, but the simulator 1 may be changed so as not to operate in the single mode (to be dedicated to the joint mode described later). There is no problem.

  First, when the control unit 10α of the computer 2α starts executing the portion related to the single mode of the simulation program 11α by a predetermined input to the input unit 8α corresponding to the trainer for the power supply control station α, the initial state of each device is set. The initial value of the device data 12α is set by being read from the storage unit 4α and displayed on the trainer display unit 6α according to the arrangement of the power system model.

  Then, the trainer refers to the display unit 6α, selects one or a plurality of failed devices by the input unit 8α, and instructs the start of training in the single mode. Thereby, the control unit 10α sequentially calculates the device data 12α related to the failed device and its adjacent device (device adjacent to the device whose state has changed), etc., and updates the device data 12α in the storage unit 4α. In response to this change, the contents of the display means 6α are updated, and the trainee performs switching selection of the circuit breaker or the like via its display means 6α or input means 8α in response to this change. For example, one or more trainees cut the circuit breaker determined by themselves or together in order to prevent an abnormal high voltage from being transmitted downstream.

  In reality, the traini selectable devices are limited to those within the jurisdiction of the power supply control station α, and the trainee display means 6α has device data 12α within the jurisdiction (arranged in accordance with the power system model). Is displayed. The equipment data 12α related to the equipment outside the jurisdiction is input according to the situation by the trainer predicting a change due to an operation at another power supply control station including the temporary load CL. The control means 10α sequentially calculates the device data 12α on the basis of changes caused by the operation of the equipment related to the trainee and the input of the trainer, updates the contents of the trainer and trainee display means 6α, and further obtains the final result ( The above is repeated as appropriate for the appearance of return completion or occurrence of permanent failure.

  A plurality of trainee display means 6α and input means 8α may be arranged for each trainee or may be shared for any trainee. Further, the computer may be separated between the trainer and the trainee, or the computers may be separated individually or in any combination with respect to a plurality of trainees. Further, there may be a plurality of trainers. In this case, the computer and the like are the same as those when there are a plurality of trainees.

  Next, the power supply control station β can be simulated or trained in the single mode in the same manner as the power supply control station α. In particular, the trainer operates the equipment A A1 and C A1 outside the jurisdiction. Further, the upstream side of A A1 (provisional device data 12β) is not changed while assuming an infinite bus.

  Subsequently, the power supply control station γ can be simulated or trained in the single mode as well as the power supply control stations α and β. In particular, in addition to Ai 2 and B B1, the upstream of Iu 2 is also fixed as an infinite bus, and the trainer operates temporary loads IL and KL.

  Further, the power supply control station δ can be simulated or trained in the single mode as well as the power supply control stations α to γ. In particular, the trainer also operates the temporary circuit breaker * I1, and the upstream of the circuit breaker * I1 is assumed to be an infinite bus.

  In this way, in the simulator 1, simulation or training can be performed individually in the computers 2α to 2δ of the power supply control stations α to δ. In the simulator 1, as will be described below, the power supply control stations α to δ can jointly perform simulation or training.

[Operation in joint mode]
An operation example when the simulator 1 is used for joint training in the power supply control stations α to δ (joint mode) will be described below. Here, generally speaking, in the joint training, the computers 2α to 2δ of the power supply control stations α to δ communicate with each other appropriately with respect to the device data 12α to 12δ, and the received device data 12α to 12δ and the like. It is performed by performing the calculation based on each. In addition, although the operation | movement of the simulator 1 about the case where all the electric power feeding control stations (alpha)-(delta) participate is demonstrated below, even if it combines together in the arbitrary combinations which concern on the part, the simulator 1 can operate | move similarly ( If the device data related to the non-participating power supply control station is insufficient, the trainer of the participating power supply control station may input the insufficient device data according to the situation according to the single mode).

  The configuration of the computer at the power supply control stations α to δ is as described in the operation in the single mode. Each trainer of the power supply control stations α to δ inputs predetermined inputs to the computers 2α to 2δ through the input means 8α to 8δ in order to perform joint training. Then, the control means 10α to 10δ of the computers 2α to 2δ start executing the portion related to the congruent mode in the simulation programs 11α to 11δ. In addition, each command of each simulation program 11 (alpha) -11 (delta) may be shared in part by single mode and joint mode, and may be isolate | separated by each mode.

  Each of the control means 10α to 10δ first performs initial setting of the device data 12α to 12δ for the devices other than the temporary device data 12α to 12δ. Further, the control means 10α to 10δ have the initial values of the device data 12α to 12δ (including provisional ones) of other power supply control stations α to δ related to devices outside the jurisdiction with respect to the other computers 2α to 2δ. Request transmission. Note that initial values relating to devices outside the jurisdiction may be stored in advance in the storage means 4α to 4δ, and these may be read and initialized.

  Specifically, the control unit 10α requests the computer 2β to transmit the initial value of the device data 12β of the circuit breaker C 2 through the communication unit 9α and the Internet N, and sends a temporary load CL. A transmission request is made for the initial value of the corresponding device data 12β (load value passing through C5) of C5. Similarly, the control means 10α is connected to the computer 2γ by D, 3, D2, D1, E3, E3, E1, E2, G1, G2, A transmission request is made for the initial value of the device data 12γ of H 1 and H 2 and the initial value of the device data 12γ of G 2 and H 3 related to the load. Further, the control means 10α similarly applies to the computer 2δ the initial value of the equipment data 12γ of F 2, F 2, F 1, 1 U 1, 1 U 2, I 3 and the load I A transmission request is made for the initial value of the device data 12γ of D2.

  On the other hand, the control means 10β similarly requests the computer 2α to transmit the initial value of the device data 12β for A 1 and C 1 and the initial value of the device data 12α related to the <C variation> bus. For the device data 12β to 12δ (voltage, frequency, etc.) in the vicinity of the jurisdiction boundary, basically, the data calculated by the higher-level computer 2α is acquired by communication.

  Further, the control means 10γ provides the computer 2α with the initial values of the device data 12α of A B2, B B1, D B1, D B2, E B1, E B2, <D change>, < Request transmission of the initial value of the device data 12α related to the E-change> bus. In addition, the control means 10γ has an initial value of the device data 12δ of IU1, IU2, IU3, IE2, IE1, KE1, KE2 or a temporary value for the computer 2δ. The initial values of the device data 12δ (total value) of I, 2, I3, and I4 corresponding to the load IL, and K and 3, K4,4 corresponding to the temporary load GL A transmission request is made for the initial value of the device data 12 δ (total value) of K 5.

  Further, the control means 10δ gives the computer 2α the initial value of the device data 12α of B 1, B 2, D 2, E 1, E 2, and F 1 and the <F variation> bus. A request for transmission of the initial value of the device data 12α is made. In addition, the control means 10δ is the initial value of the device data 12γ of E E 3, E U 3, E U 1, E U 2, H U 1, H U 2, H E 3, H E 2 with respect to the computer 2γ. Or the initial value of the device data 12γ (total value) of I, 2, I3, and I4 corresponding to the temporary load HL, and the device data 12γ of H1 corresponding to the load GL. Send a request for the initial value of. In the joint mode, the device data 12δ related to the temporary circuit breaker * a1 is not used.

  Further, a part of the transmission request will be described again from a different point of view. It can be said that the device data 12δ of Ie 1 related to the computer 2δ is received by the computer 2γ. Hereinafter, device data that is a target of a transmission request by another computer is referred to as requested data. For example, the device data 12α of B 1, E 1, and E 2 related to the computer 2α is requested data for both the computer 2γ and the computer 2δ, and is referred to by the computer 2γ and the computer 2δ through communication. It is supposed to be. Further, the device data 12δ of IU1, IU2, and IU3 related to the computer 2δ is requested data regarding both the computer 2α and the computer 2γ. The requested data corresponds to device data outside the jurisdiction of the request source.

  When the control means 10α to 10δ receive transmission requests from the other computers 2α to 2δ from the Internet N via the communication means 9α to 9δ, the control means 10α to 10δ request the requested device data 12α to 12γ accordingly. Reply to the original. The control units 10α to 10δ that have received this reply store the device data 12α to 12γ in their storage units 4α to 4δ according to the power system model. It should be noted that receipt confirmation for receiving a reply or the like can be appropriately made by a communication partner or a predetermined computer, and so on.

  Next, each of the control means 10α to 10δ displays the initially set device data 12α to 12δ on the display means 6α to 6δ. This display is performed for all the device data 12α to 12δ including those outside the jurisdiction in the trainer display means 6α of the power supply control station α, and is performed for the devices within the jurisdiction in the trainee display means 6α. The display is similarly performed at the control stations β to δ. In addition, the display content of each trainer can be changed as appropriate, for example, only the devices within the jurisdiction are displayed on the display means 6α to 6δ.

  Subsequently, the trainer of the power supply control station α performs input relating to the occurrence of failure (input for selecting any one or plural pieces of device data 12α to 12δ and specifying an abnormal value, etc.) via the input unit 8α, and the control unit 10α stores the device data 12α of the input in the storage unit 4α and transmits the device data 12α to 12δ related to the input to the computers 2β to 2δ. Upon receiving the transmission, the computers 2β to 2δ store the device data 12α to 12δ in the storage units 4β to 4δ. The trainer at the power supply control station α inputs an input corresponding to the start of training (simulation) to the input means 8α of the computer 2α. Note that the input relating to the occurrence of the failure (input of the initial conditions of the simulation) and the input of starting the training may be performed by the trainer of the power supply control station β alone or jointly with other trainers.

  When there is an input for starting training, the control means 10α to 10δ of the computers 2α to 2δ sequentially perform calculations related to the device data 12α to 12δ within the jurisdiction in the same manner as in the single mode, and display means 6α to 6δ. Update the contents of. When the requested data is changed by calculation, the control means 10α to 10δ transmit the changed device data 12α to 12δ to the requesting (reference source) computers 2α to 2δ. Here, the requested data is transmitted without going through a process such as transmission of a request signal from the request source.

  On the other hand, when receiving the requested data of the other computers 2α to 2δ, the control means 10α to 10δ update the storage as corresponding device data 12α to 12δ (device data outside the jurisdiction). Then, the control means 10α to 10δ, in the calculation related to the device data 12α to 12δ (jurisdiction device data) within the jurisdiction, request the device data 12α to 12δ (device data outside the jurisdiction, requested by other computers 2α to 2δ). If any of the data is required, refer to it accordingly.

  The control means 10α to 10δ accept inputs related to device selection / operation by the trainees of the power supply control stations α to δ in parallel with the calculation of the device data 12α to 12δ. This input is made in the same manner as in the single mode. When such an input is made, the corresponding device data 12α to 12δ is changed based on the contents, and reflected in each calculation of the device data 12α to 12δ and the display of the display means 6α to 6δ. Of course, if the requested data is changed in this operation, it is transmitted to the reference source.

  Note that the input states of each of the computers 2α to 2δ (a state of selecting and / or operating a device and / or a state of selecting and operating) are transmitted to the other computers 2α to 2δ through communication, and the other computers 2α to 2δ are communicated. The display means 6α to 6δ may be displayed. Also, the input of device selection / operation by the trainee may be accepted, and the input state of the other computers 2α to 2δ may be displayed only by the trainer display means 6α to 6δ or together with the trainee display means 6α to 6δ. May be.

  Each of the control means 10α to 10δ sequentially performs operations on the device data 12α to 12δ in this way, updates the contents of the display means 6α to 6δ of the trainer and trainee, and further obtains a final result (return completion). The above is repeated as appropriate for the purpose of occurrence of a permanent failure or the like.

[Example of simulation in joint mode]
Two examples of the outline of a specific simulation scenario related to the power system model using the joint mode of the simulator 1 will be described.

  FIG. 8 shows one of them (a case of AD line, high-speed reclosing, and success). First, as an initial condition setting, an input is made to turn off only the device data 12α, 12γ, and 12δ related to the circuit breakers E, I, I, J, and K2, and the AD line. The device data 12α is input with the content of the one-phase ground fault as the content. Then, the calculation of the device data 12α to 12δ starts at the moment when the simulation start is input (actual event, time 0: 00: 000).

  The control means 10α calculates from the initial conditions that a voltage drop occurs at the 275 kV bus at the substation (excluding <F change>) within the jurisdiction (calculation of the device data 12α in the computer 2α, time 0:00: 000), the voltage drop of the 275 kV bus of <C change> is transmitted to the computer 2β, and the voltage drop of the 275 kV bus of <D change> is sent to the computer 2γ. When the control means 10β receives the voltage drop of the 275 kV bus of <C change>, based on this, the control means 10β sequentially calculates that the voltage drop successively affects the devices in the jurisdiction (calculation of the device data 12β in the computer 2β, At time 0: 00: 000), the requested data is appropriately transmitted to the computer 2α. When the control means 10γ receives from the computer 2α about the voltage drop of the 275 kV bus of <D change>, the control means 10γ calculates the voltage drop in the equipment in the jurisdiction (calculation of the device data 12γ in the computer 2γ, time 0: 00: 000) Then, the requested data is appropriately transmitted to the computers 2α and 2δ. Since the control means 10δ does not change any device data 12δ, the device data 12δ is not calculated. The input of the AD line 1 phase ground fault is also included in the content of the fact that the ground fault is momentary, so that the control means 10α can recover the voltage instantaneously after the voltage drop (instantaneous voltage drop). The calculation is continued based on this, and the other control means 10β and 10γ continue the calculation in the same manner.

  Based on such calculation, the display contents of the display means 6α to 6δ are updated. When the calculation is continued, the computer 2α simulates the automatic disconnection of the circuit breaker A 2 of <A change> and the automatic disconnection of the circuit breaker D 1 of <D change> ( Time 0: 00: 050). When the calculation is further continued, the automatic connection of the circuit breaker A 2 of <A change> is simulated, and the automatic connection of the circuit breaker D 1 of <D change> is simulated (time 0:00: 350). In this example, automatic operation of the devices in the computers 2β to 2δ does not occur.

  FIG. 9 shows the other case (the case of training related to the EH line, failure stop, re-transmission, and failure). First, as an initial setting, the trainer at the power supply control station α performs disconnection of the same circuit breaker as in the above example, and input that a three-phase short-circuit fault has occurred in the EH line. The device data 12α corresponding to these inputs is sent from the computer 2α to the computers 2γ and 2δ and stored as device data 12γ and 12δ. At this stage, the off state is also reflected in the trainee display means 6α to 6δ, but the failure input is reflected only in the trainer display means 6α to 6δ. At the moment when the training start is input, the failure input is reflected in the trainee display means 6α to 6δ (actual event, time 0: 00: 000), and the calculation of the device data 12α to 12δ is started.

  Each of the control means 10α to 10δ advances the calculation for the device data 12α to 12δ within the jurisdiction based on the initial conditions (time 0: 00: 000). In particular, the computer 2β calculates the voltage change of the <C change> 275 kV bus, and the computer 2δ calculates the voltage change of the <F change> 275 kV bus.

  Further, the control means 10γ calculates the automatic disconnection of E-U1 and H-U1 at time 0: 00: 840 and transmits them to the computers 2α and 2δ. Next, the control means 10γ calculates the occurrence of power failure <H change> or the decrease in load HL caused by this, and transmits it to the computers 2α and 2δ, and the control means 10δ computes occurrence of power failure <K change>. To the computers 2α and 2γ. The control means 10α advances the calculation based on the decrease in the load HL, the control means 10γ advances the calculation based on the <H change> blackout, etc., and the control means 10δ calculates based on the <K change> blackout etc. Proceed.

  Subsequently, at time 1: 00: 840, the control means 10γ calculates an automatic connection between E U 1 and H U 1 and transmits it to the computers 2α and 2δ. Next, the control means 10γ calculates the 154 kV bus voltage change of the EH line three-phase short-circuit failure or the <E change> and transmits it to the computers 2α and 2δ, and further advances the calculation, thereby controlling the control means 10α. Calculates the 275 kV bus voltage change of <C change> and <F change> in response to the reception of the device data 12γ related to the permanent failure, and transmits it to the computers 2β and 2δ, and also changes the 154 kV bus voltage of <E change> The calculation is further advanced in response to reception of. The control means 10β advances the calculation in response to the reception of the <C change> 275 kV bus voltage change, and the control means 10 δ advances the calculation in response to the reception of the <F change> 275 kV bus voltage change.

  Further, the control means 10γ calculates the automatic disconnection of E U 1 and H U 1 at time 1: 01: 680 and transmits them to the computers 2α and 2δ. Depending on the state of the power system model as described above, the trainee at the γ power supply control station has established a recovery policy. Here, the load of <K change> is recovered from the adjacent system (EIK line). Select the device and input the operation.

  Further, according to the above situation, the trainee of the power supply control station δ performs input related to the disconnection of the circuit breaker Kd 1 and inputs related to connection of the Kd 2. The control means 10δ calculates the device data 12δ such as each circuit breaker and the load KL according to these inputs, and transmits it to the computer 2γ. In response to this, the control means 10γ calculates the load IL etc. and transmits it to the computer 2α, and the control means 10α advances the calculation of the equipment data 12α within the jurisdiction based on the increment of the load IL. Note that <K change> is restored by the above operation of the circuit breakers Kd1 and Kd2 made by the trainee of the power supply control station δ, but <K change> load is transmitted, so this effect is further calculated. Is advanced.

[effect]
The power system simulator 1 described above includes a plurality of computers 2α to 2δ that can communicate with each other, and each of the computers 2α to 2δ indicates the communication means 9α to 9δ that perform the communication and the states of the devices that belong to the power system model. Storage means 4α to 4δ capable of storing device data 12α to 12δ representing, and control means 10α to 10δ for controlling these means. Each of the storage means 4α to 4δ is divided into different sections of the power system model. The device data 12α to 12δ related to the device to which the device belongs is stored as jurisdiction device data, and each of the control means 10α to 10δ has the device data 12α other than the jurisdiction device data included in the storage means 4α to 4δ to be controlled. About the communication means 9α to 9δ to be controlled from the other computers 2α to 2δ having the device data 12α to 12δ. Is obtained and stored in the storage means 4α to 4δ as out-of-jurisdiction device data, and the jurisdiction device data or the out-of-jurisdiction device data stored in the storage means 4α to 4δ to be controlled is used. Calculate and update. Therefore, each trainer of the power supply control stations α to δ can input the data corresponding to the device data related to the other power supply control stations α to δ in a flexible manner, and covers a wide range of power systems covered by the power supply control stations α to δ. Therefore, it is possible to perform a realistic simulation in consideration of the above situation, and it can be used for training assuming a large-scale blackout involving a plurality of power supply control stations α to δ. Furthermore, each control means 10α to 10δ only needs to update the jurisdiction device data, and the update of the non-jurisdiction device data may be left to other control means 10α to 10δ, so that the processing is distributed and the processing speed and efficiency are improved. It is good. In addition, since the updated out-of-jurisdiction device data is used in the calculation of the jurisdiction device data, it is possible to accurately simulate a wide range of power system models.

  In addition, the computer 2α is communicable with the other computers 2β to 2δ (the same applies to the computers 2β to 2δ), and the computer 2α indicates the communication means 9α that performs the communication and the state of the devices belonging to the power system model. Storage means 4α capable of storing the device data 12α to be represented, and control means 10α for controlling these means. The storage means 4α is provided in an arbitrary section of the power system model (within the jurisdiction of the power supply control station α). The device data 12α relating to the device to which it belongs is stored as jurisdiction device data, and the control means 10α has the device data 12α for the device data 12α other than the jurisdiction device data possessed by the storage means 4α. Acquired from the other computers 2β to 2δ via the communication means 9α and stored in the storage means 4α as out-of-jurisdiction equipment data. While, using the jurisdiction device data to the jurisdiction equipment data stored in the storage means 4.alpha., Updated by calculating the jurisdiction device data. Therefore, realistic simulation considering the situation of a wide range of power system is possible, and it can be used for training assuming large-scale power outages involving multiple power supply control stations α to δ, and the processing is distributed. Therefore, the processing speed and efficiency are good, and a wide range of power system models can be simulated accurately.

  Furthermore, a part of the non-jurisdiction device data represents a state in which a plurality of devices are integrated, such as collecting loads of a plurality of circuit breakers, or combining the highest level system into an infinite bus. Therefore, while maintaining the accuracy of the simulation, the information amount of the non-jurisdiction device data can be reduced, and the storage amount in each storage means 4α to 4δ or the communication amount and the calculation amount can be reduced, and the efficiency is improved. .

  In addition, the control means 10α to 10δ receive the non-jurisdiction device data transmitted only from the other control means 10α to 10δ at the time of update, and only when the non-jurisdiction device data is updated. Non-jurisdiction device data is acquired from the other computers 2α to 2δ. Therefore, it is possible to realize the communication of the minimum out-of-jurisdiction device data as long as the accuracy can be maintained, and the efficiency can be further improved.

  The power system simulator according to the present invention can be suitably used for device operation linkage training in the event of a device failure. It can also be applied to purposes such as immediately grasping and verifying each arbitrarily.

It is a block diagram of the electric power system simulator which concerns on this invention. It is a schematic diagram of the electric power system model which concerns on this invention. It is a figure which shows the jurisdiction of each electric power feeding control station in FIG. It is a schematic diagram regarding the equipment data 12α according to the present invention. It is a schematic diagram regarding the equipment data 12β according to the present invention. It is a schematic diagram regarding the equipment data 12γ according to the present invention. It is a schematic diagram regarding the apparatus data 12δ according to the present invention. 3 is a table showing an example of the outline of a specific simulation scenario related to FIG. 2. It is a table | surface which shows another example of the outline | summary of the concrete simulation scenario regarding FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric power system simulator 2 (alpha) -2delta Computer 4 (alpha) -4 (delta) Memory | storage means 6 (alpha) -6 (delta) Display means 8 (alpha) -8 (delta) Input means 9 (alpha) -9 (delta) Communication means 10 (alpha) -10 (delta) Control means 11 (alpha) -11 (delta) Simulation program 12 (alpha) -12 (delta) Equipment data

Claims (4)

With multiple computers that can communicate with each other,
Each of the computers includes a communication unit that performs the communication, a storage unit that can store device data representing a state of a device belonging to the power system model, and a control unit that controls these units.
Each of the storage means stores the device data relating to devices belonging to different categories of the power system model as jurisdiction device data,
Each of the control means is
The device data other than the jurisdiction device data possessed by the storage unit to be controlled is acquired from the other computer having the device data via the communication unit to be controlled, and stored in the storage unit as out-of-jurisdiction device data As well as
A power system simulator characterized by calculating and updating the jurisdiction device data using the jurisdiction device data or the non-jurisdiction device data stored in the storage means to be controlled. It has a computer that can communicate with other computers,
The computer includes a communication unit that performs the communication, a storage unit that can store device data representing a state of a device belonging to the power system model, and a control unit that controls these units.
The storage means stores the device data relating to a device belonging to an arbitrary category of the power system model as jurisdiction device data,
The control means includes
For the device data other than the jurisdiction device data possessed by the storage means, it is obtained from the other computer having the device data through the communication means, and is stored in the storage means as out-of-jurisdiction device data.
A power system simulator, wherein the jurisdiction device data or the non-jurisdiction device data stored in the storage means is used to calculate and update the jurisdiction device data. 3. The power system simulator according to claim 1, wherein a part of the device data outside the jurisdiction represents a state in which a plurality of devices are integrated. The power according to any one of claims 1 to 3, wherein the control means acquires the non-jurisdiction device data from the other computer only when the non-jurisdiction device data is updated. System simulator.

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