Relay protection intelligent substation system on-line total environment simulation platform

Abstract

The invention discloses an online full-environment simulation platform for a relay protection intelligent substation system, which relates to the technical field of intelligent power grids and receives a real-time model and real-time operation data of an actual relay protection intelligent substation system. First simulation protection device data, second simulation protection device data and actual protection device data which run on the simulation substation, the actual substation and the simulation protection server are received, so that a basis for carrying out actual relay protection intelligent substation system whole environment simulation is established, and a test simulation server and a training simulation server are utilized to carry out simulation on the whole environment of the actual relay protection intelligent substation system. On the premise that operation of the actual relay protection intelligent substation is not affected, operation of the actual relay protection intelligent substation system is simulated online, all-weather on-duty requirements of operation and maintenance personnel are met, all-environment simulation training can be provided for the operation and maintenance personnel, and emergency disposal skills of the operation and maintenance personnel are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of smart grids, and more specifically, to an online full-environment simulation platform for a relay protection smart substation system. Background Art

[0002] With the development of "digital grid", the power system is becoming more and more intelligent and networked. As an important data source for building "digital grid", the relay protection intelligent substation system must first have good operation safety and reliability, and require 24-hour uninterrupted operation, reduce the impact of new functions and new version upgrades on the main station operation time, and meet the needs of operation and maintenance personnel on duty around the clock.

[0003] In addition, as the complexity of the power system continues to increase, the power grid has put forward higher standards for the emergency response and fault handling capabilities of operation and maintenance personnel, requiring operation and maintenance personnel to perform regular duty and be familiar with the relevant skills required for duty, including the steps, process methods of business operations such as access substation debugging, remote control, daily operation and maintenance, as well as emergency handling skills in situations such as power grid failures, protection alarms, system operation abnormalities, and network abnormalities.

[0004] At present, the improvement of emergency response skills of relay protection professionals at the dispatching end mainly relies on training. The current training mainly adopts learning procedures and other materials and is carried out in an offline form. This method is difficult to systematically reflect the problems and phenomena in the fault and abnormal process. Trainees lack practical operation and handling experience, the training effect is poor, and the experience and skills of operation and maintenance personnel are difficult to improve. There are also some online simulation systems for existing dispatcher training, but these online simulation systems are mainly for dispatcher applications, focusing on power system frequency regulation and grid stability simulation. The training content is mainly related to primary side monitoring operations and maintenance of grid stability. It does not take into account the typical operation and maintenance business and operation business scenarios. Therefore, it cannot meet the needs of secondary side remote operation and maintenance training simulation. Summary of the invention

[0005] In order to solve the problem of how to improve the emergency response skills of operation and maintenance personnel of a relay protection intelligent substation system, the present invention proposes an online full-environment simulation platform for a relay protection intelligent substation system, which simulates the operation of an actual relay protection intelligent substation system online to meet the 24 / 7 duty needs of operation and maintenance personnel, and can provide full-environment simulation training for operation and maintenance personnel to improve their emergency response skills.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0007] The present application proposes an online full-environment simulation platform for a relay protection intelligent substation system, including: a data synchronization server, a test simulation server, a training simulation server, a simulation protection server, a database server, a workstation, a simulation substation switch, an actual substation switch, a simulation substation, an actual substation and an actual protection device, wherein the simulation protection server includes a first simulation protection server and a second simulation protection server, and the actual protection device includes a first actual protection device and a second actual protection device;

[0008] Among them, the data synchronization server, the test simulation server, the training simulation server, the simulation protection server, the database server, the workstation, one end of the simulation substation switch, and one end of the actual substation switch are all connected to the data bus, the other end of the simulation switch is connected to one end of the simulation substation, and the other end of the simulation substation is respectively connected to the first simulation protection server and the first actual protection device, and the first simulation protection server is deployed and operated with multiple first simulation protection devices to simulate the operation of the first actual protection device; the other end of the actual substation switch is connected to one end of the actual substation, and the other end of the actual substation is respectively connected to the second simulation protection server and the second actual protection device, and the second simulation protection server is deployed and operated with multiple second simulation protection devices to simulate the operation of the second actual protection device;

[0009] The data synchronization server is connected to the actual relay protection intelligent substation system, receives the real-time model and real-time operation data of the actual relay protection intelligent substation system, receives the first simulation protection device data, the second simulation protection device data and the actual protection device data running on the simulation substation, the actual substation and the simulation protection server, and stores them in the database server; the test simulation server runs a test program corresponding to the actual relay protection intelligent substation system function to provide functional testing services; the training simulation server runs a training simulation program to provide relay protection simulation training services, and the workstation is used to deploy the operating system of the relay protection simulation training service.

[0010] Preferably, the platform also includes a general business server, which is used to provide a basic platform for simulating the operation of an actual relay protection intelligent substation system. The general business server is also used to process general business, including: resource monitoring, network communication management, data acquisition, protocol conversion, file monitoring, process management, thread management, message bus, service bus, historical library management, real-time library management, log management and graphic model management.

[0011] Preferably, the platform further comprises a display device, and the display device is used to display the application results of the relay protection training simulation and the test simulation.

[0012] Preferably, the data synchronization server has an actual relay protection intelligent substation system model and section data that are consistent with the actual relay protection intelligent substation system, parses and transmits the data message monitored by the actual relay protection intelligent substation system to the database server, synchronizes the actual relay protection intelligent substation system model to the general business server, and creates or updates the disk file monitored by the actual relay protection intelligent substation system to the general business server.

[0013] Preferably, an upgrade package test program is also run on the test simulation server to test whether the upgrade package of the actual relay protection smart substation system is qualified.

[0014] Preferably, when relay protection simulation training is carried out, the trainer and the trainees call the training simulation program online on the workstation, and the trainer sets the upper and lower limits of the number of plants and stations included in the training simulation scenario of the trainees, the open simulation application functions, and the simulation process, and the trainer can browse and compile detailed steps of each simulation application; the trainer compiles, sets and manages historical lesson plans for the training plan; the trainer sets the start, pause, resume, playback and event insertion of the training; the trainer can browse the trainees' training abnormal events, fault handling results, training completion notifications, and personal simulation exercise notifications; the trainer gives an evaluation of the trainees' training situation.

[0015] Preferably, when relay protection simulation training is carried out, the trainer and the trainee call the training simulation program online on the workstation, and the trainee loads the simulation scenario on the workstation, the simulation scenario includes a real-time teaching plan scenario and a historical teaching plan scenario, the real-time teaching plan scenario is used for the trainee to complete the training plan specified by the trainer, and the historical teaching plan scenario is used for the trainee's daily skills training; the training simulation conducted by the trainee includes operation and maintenance operation simulation, power grid fault handling simulation and remote control operation simulation.

[0016] Preferably, the workstation will remind the trainees of abnormal operations, errors, temporary plans, commands and alarm pop-up windows, and will also send the trainees' analysis results and operation result information to the trainers, and send the commands and events sent by the trainers to the trainees.

[0017] Preferably, after the relay protection simulation training is completed, the training simulation server stores the entire training simulation operation process to the database server.

[0018] Preferably, the simulation substation collects, processes and forwards the information of the first actual protection device, and at the same time receives control instructions from the general business server and forwards them to the first actual protection device; the first simulation protection server supports the first simulation protection device to simulate the operation of the first actual protection device, and the second simulation protection server supports the second simulation protection device to simulate the operation of the second actual protection device.

[0019] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0020] The present invention proposes an online full-environment simulation platform for a relay protection intelligent substation system. The platform receives a real-time model and real-time operation data of an actual relay protection intelligent substation system, receives first simulation protection device data, second simulation protection device data, and actual protection device data running on a simulation substation, an actual substation, and a simulation protection server, thereby establishing a basis for full-environment simulation of an actual relay protection intelligent substation system. By using a test simulation server and a training simulation server, the operation of the actual relay protection intelligent substation system can be simulated online without affecting the operation of the actual relay protection intelligent substation, thereby meeting the round-the-clock duty needs of operation and maintenance personnel, and providing full-environment simulation training for the operation and maintenance personnel to improve their emergency response skills. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural connection diagram of an online full-environment simulation platform for a relay protection intelligent substation system proposed in an embodiment of the present invention;

[0022] Figure 2 Another structural connection diagram of the online full-environment simulation platform of the relay protection intelligent substation system proposed in the embodiment of the present invention;

[0023] Figure 3 A third structural connection diagram of the online full-environment simulation platform for the relay protection intelligent substation system proposed in the embodiment of the present invention is shown. DETAILED DESCRIPTION

[0024] The drawings are for illustrative purposes only and should not be construed as limiting the present patent;

[0025] In order to better illustrate the present embodiment, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0026] It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Example 1

[0029] like Figure 1 As shown, this embodiment proposes an online full-environment simulation platform for relay protection intelligent substation system, see Figure 1 The structure shown includes: a data synchronization server, a test simulation server, a training simulation server, a simulation protection server, a database server, a workstation, a simulation substation switch, an actual substation switch, a simulation substation, an actual substation and an actual protection device, the simulation protection server includes a first simulation protection server and a second simulation protection server, and the actual protection device includes a first actual protection device and a second actual protection device;

[0030] See also Figure 1 , wherein the data synchronization server, the test simulation server, the training simulation server, the simulation protection server, the database server, the workstation, one end of the simulation substation switch, and one end of the actual substation switch are all connected to the data bus, the other end of the simulation switch is connected to one end of the simulation substation, and the other end of the simulation substation is respectively connected to the first simulation protection server and the first actual protection device. A plurality of first simulation protection devices A are deployed and run on the first simulation protection server to simulate the operation of the first actual protection device; in this embodiment, see Figure 1 There are two simulation substations and two first simulation protection servers, and multiple first simulation protection devices A are deployed and run on the two first simulation protection servers respectively.

[0031] In this embodiment, there is one actual substation, the other end of the actual substation switch is connected to one end of the actual substation, and the other end of the actual substation is respectively connected to the second simulation protection server and the second actual protection device. Multiple second simulation protection devices are deployed and run on the second simulation protection server to simulate the operation of the second actual protection device.

[0032] like Figure 1As shown, the data synchronization server is connected to the actual relay protection intelligent substation system, receives the real-time model and real-time operation data of the actual relay protection intelligent substation system, in this embodiment, the real-time operation data includes the call result, burst data, etc., receives the first simulation protection device data, the second simulation protection device data and the actual protection device data running on the simulation substation, the actual substation and the simulation protection server, and stores them in the database server. The data mentioned here is the mirror information consistent with the actual relay protection intelligent substation system, which can be realized by the mirroring technology to ensure the integrity and controllability of data synchronization. The mirroring technology mainly includes data mirroring and port mirroring. Data mirroring belongs to a kind of cluster technology, which is to mirror the hard disks of two servers built on the same local area network through software or other special network devices. The master / slave servers monitor each other's operating status through the heartbeat monitoring line respectively. When the master server stops due to a fault, the slave server will take over the application of the master server in a very short time. This technology is widely used in data backup, system testing and other aspects of large-scale IT information systems. Port mirroring is to copy the messages of the designated port or the messages that meet the designated rules to the destination port. This technology is widely used in the field of switches, message analysis and monitoring to achieve network supervision and troubleshooting. At present, there is no precedent for related research or application based on the full mirror environment for relay protection smart substation systems in China.

[0033] In this embodiment, data synchronization also involves data analysis, comparison and cleaning, and further updating of the data. The update principle is:

[0034] (1) When synchronizing data in real time from the relay protection intelligent substation system, only the real-time plant and equipment model status is updated, and it is prohibited to affect the relevant plants and stations in the simulation training state;

[0035] (2) Subsequent simulation training data information only updates the status of the simulation training state plant and equipment model, and is prohibited from affecting the real-time state related plant.

[0036] The test simulation server runs a test program corresponding to the actual relay protection intelligent substation system function to provide functional testing services; the training simulation server runs a training simulation program to provide relay protection simulation training services, and the workstation is used to deploy the operating system of the relay protection simulation training service.

[0037] In this embodiment, the real-time model and real-time operation data of the actual relay protection smart substation system received by the data synchronization server provide model and data source support for training simulation and simulation of the actual relay protection smart substation system.

[0038] The simulation substation collects, processes and forwards the information of the first actual protection device, and at the same time receives control instructions from the general business server and forwards them to the first actual protection device; the first simulation protection server supports the first simulation protection device to simulate the operation of the first actual protection device, and the second simulation protection server supports the second simulation protection device to simulate the operation of the second actual protection device.

[0039] In this embodiment, an upgrade package test program is also run on the test simulation server to test whether the upgrade package of the actual relay protection intelligent substation system is qualified.

[0040] The test simulation server functions include substation simulation, protection device simulation, master station application simulation, test verification and master station remote operation and maintenance;

[0041] Combined with the simulation data of simulated substations or actual substations, simulated protection devices or actual protection devices, a test simulation platform for relay protection intelligent substation systems is built to realize simulation verification of upgrades, function pre-tests, etc. of actual relay protection intelligent substation systems, improve the reliability and stability of the actual relay protection intelligent substation system, reduce the operational risks of the actual relay protection intelligent substation system due to function expansion and upgrades, complete remote operation and maintenance of master stations across manufacturers and dispatching levels, realize remote upgrades and updates, and improve the upgrade and operation efficiency of master stations.

[0042] The online full-environment simulation platform of the relay protection intelligent substation system proposed in this embodiment supports the access of the simulation substation to the simulation and actual protection devices, realizes the collection, processing and forwarding of the protection device information, and can receive various control commands from the simulation master station and forward them to the protection device to realize the operation control of the protection. The simulation substation can simulate the actual substation at the station end, adopt the Southern Power Grid 103 protocol and the Southern Power Grid master-substation 61850 protocol for the master station communication, and adopt the network 103 protocol and IEC61850 protocol for the device communication.

[0043] The online full-environment simulation platform of the relay protection intelligent substation system proposed in this embodiment supports the simulation protection device to simulate the actual protection device, and can be connected to the actual substation or the simulation substation. Preferably, the network 103 protocol and IEC61850 protocol are used to communicate with the substation.

[0044] The online full-environment simulation platform of the relay protection intelligent substation system proposed in this embodiment realizes full-function simulation of the actual relay protection intelligent substation system, forms a high-fidelity full mirror image of the master station, supports the upper master station to establish a remote connection with the lower master station based on the mirror, and guides operation and maintenance operations.

[0045] The online full-environment simulation platform proposed in this embodiment can provide full-environment simulation training for operation and maintenance personnel. Specifically, when relay protection simulation training is carried out, the trainer and the trainee call the training simulation program online on the workstation. The trainer sets the upper and lower limits of the number of plants and stations included in the training simulation scene of the trainee, the simulation application function opening, and the simulation process, and the trainer can browse and compile the detailed steps of each simulation application; the trainer compiles, sets and manages the historical teaching plan for the training plan; the trainer sets the start, pause, resume, playback and event insertion of the training; the trainer can browse the abnormal training events, fault handling results, training completion notifications, and personal simulation exercise notifications of the trainee; the trainer gives an evaluation of the training situation of the trainee.

[0046] Similarly, the trainees load simulation scenarios on the workstation, and the simulation scenarios include real-time teaching plan scenarios and historical teaching plan scenarios. The real-time teaching plan scenarios are used by the trainees to complete the training plans specified by the trainers, and the historical teaching plan scenarios are used for the daily skills training of the trainees; the training simulations conducted by the trainees include operation and maintenance simulation, power grid fault handling simulation and remote control operation simulation.

[0047] In addition, the workstation will remind the trainees of abnormal operations, errors, temporary plans, commands and alarm pop-up windows. It will also send the trainees' analysis results and operation result information to the trainers, and send the commands and events sent by the trainers to the trainees.

[0048] When the trainer and the trainee carry out relay protection simulation training, they first log in to the workstation, automatically complete the registration in the registration management center, and record the unique identity ID to ensure the subscription and accurate distribution of various subsequent messages. All login, query and application operations of the online full-environment simulation platform proposed in this embodiment require corresponding permissions to be performed, as follows:

[0049] (1) All simulation functions of the platform can set corresponding access rights for different users, ensuring to the greatest extent possible that key parts are not accessed by unauthorized users.

[0050] (2) The key operations performed by the user must be recorded. The record content includes user name, execution operation, execution time, execution machine, etc., and a query and retrieval function for the operation records must be provided.

[0051] (3) User levels should be classified and customized as follows:

[0052] Ordinary users are only authorized to access and browse the relevant applications of the simulation test master station without affecting the safe and stable operation;

[0053] Teacher Group - has all the rights of ordinary users and also has the rights of teachers, such as making plans, editing lesson plans, controlling the training process, etc.

[0054] Trainee group - has all the rights of ordinary users and also has the rights of trainees, such as executing training plans, different simulation training operations, etc.

[0055] System Administrator - The user with the highest authority, in addition to having all the above personnel permissions, can also authorize various types of personnel.

[0056] Security Auditor - Conduct security audits on other users' operations, such as log audits, important event audits, etc.

[0057] (4) User login must be verified, and the platform has an automatic lock function if it is not operated for a long period of time.

[0058] After the relay protection simulation training is completed, the training simulation server stores the entire training simulation operation process to the database server.

[0059] Example 2

[0060] like Figure 2 As shown, this embodiment also proposes another online full-environment simulation platform for relay protection intelligent substation system. Compared with Example 1, in addition to data synchronization server, test simulation server, training simulation server, simulation protection server, database server, workstation, simulation substation switch, actual substation switch, simulation substation, actual substation and actual protection device, it also includes a general business server. In this embodiment, the general business server is used to provide a basic platform for simulating the operation of the actual relay protection intelligent substation system. The general business server is also used to process general business, including: resource monitoring, network communication management, data acquisition, protocol conversion, file monitoring, process management, thread management, message bus, service bus, historical library management, real-time library management, log management and graphic model management.

[0061] As described in Example 1, the data synchronization server has an actual relay protection intelligent substation system model and section data that are consistent with the actual relay protection intelligent substation system. The data synchronization server parses and transmits the data message monitored by the actual relay protection intelligent substation system to the database server, synchronizes the actual relay protection intelligent substation system model to the general business server, and creates or updates the disk file monitored by the actual relay protection intelligent substation system to the general business server.

[0062] Example 3

[0063] like Figure 3As shown, this embodiment also proposes a third online full-environment simulation platform for relay protection intelligent substation system. Compared with Example 2, in addition to including a data synchronization server, a test simulation server, a training simulation server, a simulation protection server, a database server, a workstation, a simulation substation switch, an actual substation switch, a simulation substation, an actual substation, an actual protection device and a general business server, it also includes a display device, which is used to display the application results of relay protection training simulation and test simulation.

[0064] The terms used to describe the positional relationship in the accompanying drawings are only used for illustrative purposes and should not be construed as limiting this patent; it is clear that the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An online full-environment simulation platform for relay protection intelligent substation system, characterized in that: include: A data synchronization server, a test simulation server, a training simulation server, a simulation protection server, a database server, a workstation, a simulation substation switch, an actual substation switch, a simulation substation, an actual substation and an actual protection device, wherein the simulation protection server comprises a first simulation protection server and a second simulation protection server, and the actual protection device comprises a first actual protection device and a second actual protection device; Among them, the data synchronization server, the test simulation server, the training simulation server, the simulation protection server, the database server, the workstation, one end of the simulation substation switch, and one end of the actual substation switch are all connected to the data bus, the other end of the simulation switch is connected to one end of the simulation substation, and the other end of the simulation substation is respectively connected to the first simulation protection server and the first actual protection device, and the first simulation protection server is deployed and operated with multiple first simulation protection devices to simulate the operation of the first actual protection device; the other end of the actual substation switch is connected to one end of the actual substation, and the other end of the actual substation is respectively connected to the second simulation protection server and the second actual protection device, and the second simulation protection server is deployed and operated with multiple second simulation protection devices to simulate the operation of the second actual protection device; The data synchronization server is connected to the actual relay protection intelligent substation system, receives the real-time model and real-time operation data of the actual relay protection intelligent substation system, receives the first simulation protection device data, the second simulation protection device data and the actual protection device data running on the simulation substation, the actual substation and the simulation protection server, and stores them in the database server; the test simulation server runs a test program corresponding to the actual relay protection intelligent substation system function to provide functional testing services; the training simulation server runs a training simulation program to provide relay protection simulation training services, and the workstation is used to deploy the operating system of the relay protection simulation training service.

2. The online full-environment simulation platform for relay protection intelligent substation system according to claim 1 is characterized in that: The platform also includes a general business server, which is used to provide a basic platform for simulating the operation of an actual relay protection intelligent substation system. The general business server is also used to process general business, including: resource monitoring, network communication management, data acquisition, protocol conversion, file monitoring, process management, thread management, message bus, service bus, historical library management, real-time library management, log management and graphic model management.

3. The online full-environment simulation platform for relay protection intelligent substation system according to claim 2 is characterized in that: It also includes a display device, which is used to display the application results of relay protection training simulation and test simulation.

4. The online full-environment simulation platform for relay protection intelligent substation system according to claim 2 is characterized in that: The data synchronization server has an actual relay protection intelligent substation system model and section data that are consistent with the actual relay protection intelligent substation system. The data message monitored by the actual relay protection intelligent substation system is parsed and transmitted to the database server, the actual relay protection intelligent substation system model is synchronized to the general business server, and the disk file monitored by the actual relay protection intelligent substation system is created or updated to the general business server.

5. The online full-environment simulation platform for relay protection intelligent substation system according to claim 1 is characterized in that: The test simulation server also runs an upgrade package test program for testing whether the upgrade package of the actual relay protection intelligent substation system is qualified.

6. The online full-environment simulation platform for relay protection intelligent substation system according to claim 1 is characterized in that: When relay protection simulation training is carried out, the trainer and the trainees call the training simulation program online on the workstation. The trainer sets the upper and lower limits of the number of plants and stations included in the trainee's training simulation scenario, the open simulation application functions, and the simulation process, and the trainer can browse and compile detailed steps of each simulation application; the trainer compiles, sets and manages historical lesson plans for training; the trainer sets the start, pause, resume, playback and event insertion of training; the trainer can browse the trainee's training abnormal events, fault handling results, training completion notifications, and personal simulation exercise notifications; the trainer gives an evaluation of the trainee's training situation.

7. The online full-environment simulation platform for relay protection intelligent substation system according to claim 1 is characterized in that: When relay protection simulation training is carried out, the trainer and the trainee call the training simulation program online on the workstation, and the trainee loads the simulation scenario on the workstation. The simulation scenario includes a real-time teaching plan scenario and a historical teaching plan scenario. The real-time teaching plan scenario is used by the trainee to complete the training plan specified by the trainer, and the historical teaching plan scenario is used for the daily skills training of the trainee; The training simulations conducted by the trainees include operation and maintenance simulation, power grid fault handling simulation and remote control operation simulation.

8. The online full-environment simulation platform for relay protection intelligent substation system according to claim 6 or 7, characterized in that: The workstation will remind the trainees of abnormal operations, errors, temporary plans, commands and alarm pop-up windows, and will also send the trainees' analysis results and operation result information to the trainers, and send the commands and events sent by the trainers to the trainees.

9. The online full-environment simulation platform for relay protection intelligent substation system according to claim 8 is characterized in that: After the relay protection simulation training is completed, the training simulation server stores the entire training simulation operation process to the database server.

10. The online full-environment simulation platform for relay protection intelligent substation system according to claim 1 is characterized in that: The simulation substation collects, processes and forwards information of the first actual protection device, and at the same time receives control instructions from the general service server and forwards them to the first actual protection device; The first simulation protection server supports the first simulation protection device to simulate the operation of the first actual protection device, and the second simulation protection server supports the second simulation protection device to simulate the operation of the second actual protection device.

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