Centralized control station simulation system and sequential control simulation method

Abstract

A sequential control simulation method and system of a centralized control station simulation system comprises the following steps: establishing a primary wiring diagram and an interval diagram through the simulation system, and collecting data information; establishing an equipment switch disconnecting link association table; associating equipment of the simulation system with a switch and a disconnecting link associated with the equipment, and establishing an index; decomposing the operation state of the equipment according to the association of the equipment, the switch and the disconnecting link to obtain the operation state of the switch; based on a switch operation state, establishing an indexed equipment switch disconnecting link association table, and modeling a scheduling instruction ticket; on the basis of the obtained scheduling instruction ticket model, the simulation system automatically generates an operation instruction ticket according to the initial state and the target state according to the equipment state recorded by the equipment switch disconnecting link association table with the established index; analyzing the operation instruction ticket according to a time sequence to form an event set, and inserting a to-be-executed event list of the simulation system; and the simulation system carries out analysis according to the time sequence and feeds back corresponding states including operation success or operation failure, and one-key sequential control is completed.

Description

Technical Field

[0001] The invention belongs to the field of electric power simulation training, and relates to a one-key sequential control simulation method of a centralized control station simulation system and a system thereof. Background Art

[0002] The substation centralized control system brings together various operating data of multiple substations for operating status monitoring, realizing centralized monitoring of main equipment, auxiliary equipment, and fire-fighting equipment in the substation. Equipment monitoring distinguishes between normal operating signals, accident signals, and abnormal signals, and has functions such as data over-limit alarms and accident signal push, thereby improving the intensity of substation operation and maintenance monitoring, the sophistication of equipment management, the degree of production informatization, and the strength of team building.

[0003] One-button sequential control is an operation method in the substation centralized control system. It uses a programmed control module to describe traditional operation tickets and operation procedures, combined with anti-misoperation locking logic, and automatically controls electrical primary and secondary equipment through the automation system server, measurement and control devices, and communication devices. It transforms the traditional manual switching operation mode into an automatic mode with automatic generation of operation tickets, one-button start of operation steps, automatic identification of equipment status, and sequential execution of operation processes.

[0004] The substation centralized control station simulation training system uses digital simulation to achieve the simulation of integrated monitoring of the main and auxiliary equipment of the substation, as well as the simulation of the work contact between the substation centralized control station and the power grid dispatch, switching operation and emergency handling of faults, so as to improve the equipment control, active warning and emergency handling capabilities of the substation centralized control station operation and maintenance personnel. One-button sequential control is the basic operating method of the centralized control station system, and the substation centralized control station simulation training system simulates sequential control.

[0005] With the continuous development of power systems, the number of substations continues to increase, and traditional manual operation and management methods can no longer meet the needs of modern power systems. Therefore, a centralized control station simulation system is needed to simulate the sequential control operation of substations to improve operational efficiency and safety. However, the existing centralized control station simulation system has some problems in simulating sequential control operations, such as the simulation operation process is not realistic, the operation result feedback is not timely, etc. Therefore, a new method and system for sequential control simulation operation in a centralized control station simulation system is needed. Summary of the invention

[0006] In order to solve the deficiencies in the prior art, the present invention provides a method and system for sequential control simulation operation in a centralized control station simulation system, which are used to simulate the sequential control operation process of a substation and improve operation efficiency and safety.

[0007] The present invention adopts the following technical solution.

[0008] A sequential control simulation method for a centralized control station simulation system, characterized in that the method comprises:

[0009] Step 1: Establish a primary wiring diagram and interval diagram through the simulation system, and collect data information, including equipment wiring mode and type, operating status, and corresponding switch and knife switch status at different times;

[0010] Step 2: Based on the data information obtained in step 1, establish a device standard state library, that is, a device switch knife switch association table, and the device standard state library includes a switch knife switch model library;

[0011] Step 3, based on the device switch knife switch association table obtained in step 2, establish the topological relationship between the device and the switch and knife switch, and associate each device of the simulation system and the switch and knife switch associated with the device through the topological analysis module of the simulation training system, and establish an index to obtain the device switch knife switch association table after the index is established;

[0012] Step 4, based on the indexed device switch knife switch association table obtained in step 3, according to the association between the device and the switch and knife switch, the operating state of the switch is obtained by decomposing the device operating state;

[0013] Step 5, based on the switch operation status obtained in step 4 and the device switch knife switch association table after indexing in step 3, the dispatch instruction ticket is modeled to obtain a dispatch instruction ticket model;

[0014] Step 6: Based on the dispatch instruction ticket model established in step 5, the simulation system automatically generates a set of operation instruction tickets according to the equipment status recorded in the equipment switch knife switch association table indexed in step 3;

[0015] Step 7, based on the operation instruction ticket obtained in step 6, the switch and knife switch states corresponding to different moments obtained in step 1 are parsed to form an event set including operation events and inspection events, and inserted into the list of pending events of the simulation system;

[0016] Step 8, based on the event set obtained in step 7, the simulation system analyzes the switch and knife switch states corresponding to different moments obtained in step 1 and feeds back the corresponding states including successful operation or failed operation, completing one-button sequential control.

[0017] Preferably, step 2 comprises:

[0018] The equipment switch knife switch association table includes the model domain and its corresponding instance;

[0019] The equipment switch knife switch association table names the switches in sequence through Brk+numbers, and through Disc+two-digit letters, the first digit is the switch number, and the second digit is the knife switch numbered in sequence.

[0020] Preferably, step 3 comprises:

[0021] Through micro-topology and macro-topology, a topological search is performed on the connection points and the disconnection and connection states of the devices to establish topological relationships. Each device in the simulation system and its associated switches and circuit breakers are indexed according to the set naming method.

[0022] Preferably, step 4 comprises:

[0023] The state of the device including the running state, the hot standby state and the cold standby state is decomposed into the states of the corresponding switches including the running state, the hot standby state and the cold standby state.

[0024] Preferably, step 5 comprises:

[0025] Step 5.1, extracting and arranging features from the equipment switch states decomposed in step 4 to form the operation type of the dispatch instruction ticket;

[0026] Step 5.2, according to the equipment switch knife switch association table indexed in step 3, extract and sort the current switch knife switch opening and closing states from the existing switch knife switch model library of the simulation system to form the pre-operation state of the dispatch instruction ticket;

[0027] Step 5.3, based on the operation type obtained in step 5.1, perform corresponding operations, extract the on / off states of the target switch from the switch model library of the simulation system from the instance name recorded in the device switch association table indexed in step 3, and sort them out to form the post-operation state of the dispatch instruction ticket;

[0028] Step 5.4, based on steps 5.1-5.3, the state changes of the switch are recorded and decomposed into the formed operation steps to form the operation ticket content of the dispatch instruction ticket.

[0029] Preferably, step 7 comprises:

[0030] Through the rehearsal mode of the simulation system, the event execution is simulated to determine whether the event can be rehearsed successfully.

[0031] The second aspect of the present invention discloses a sequential control simulation system of a centralized control station simulation system, and a sequential control simulation method for running the above-mentioned centralized control station simulation system includes: an information acquisition module, an equipment standard state library module, a topology analysis module, a state decomposition module, a dispatch instruction ticket modeling module, an operation instruction generation module, and an instruction parsing feedback module;

[0032] Information collection module, used to collect data information of primary wiring diagram and interval diagram;

[0033] The equipment standard state library establishment module is connected with the information acquisition module, and establishes the equipment standard state library, i.e., the equipment switch knife switch association table, based on the data obtained by the information acquisition module;

[0034] The topology analysis module is connected to the equipment standard state library module, and is used to associate each device of the simulation system and the switches and switches associated with the devices, and to establish an index to obtain the equipment switch and switch association table after the index is established;

[0035] A state decomposition module, connected to the topology analysis module, for decomposing the state of the device into the states of the corresponding switches;

[0036] The dispatch order ticket modeling module is connected with the state decomposition module and the topology analysis module to model the dispatch order ticket and obtain the dispatch order ticket model;

[0037] The operation instruction generation module is connected with the dispatch instruction ticket modeling module and the topology analysis module, and is used to automatically generate a set of operation instruction tickets according to the initial state and target state of the equipment;

[0038] The instruction parsing feedback module is connected to the operation instruction generation module and the information collection module, and is used to form an event set including operation events and inspection events, and insert it into the list of pending events of the simulation system; after parsing, it feedbacks the corresponding status including operation success or operation failure.

[0039] Preferably, the topology analysis module includes a micro-topology unit and a macro-topology unit;

[0040] The micro-topology unit is connected to the equipment standard state library module. The micro-topology performs a topological search on all actual connection points of the equipment. During the search, the on / off state of the switch is obtained based on the equipment standard state library module, and a logical calculation node is formed at the same time.

[0041] The macro-topology unit is connected to the micro-topology unit. The computing node obtained based on the micro-topology is the minimum unit node. A macro-topology search is performed on the lines, transformer windings and other equipment in the network to form a computing island and obtain the index relationship of the switch in the entire actual network.

[0042] Preferably, the dispatch instruction ticket modeling module includes an operation type building unit, a pre-operation state building unit, a post-operation state building unit, and an operation content building unit;

[0043] The operation type building unit is connected with the state decomposition module to form the operation type of the dispatch instruction ticket;

[0044] The pre-operation state construction unit is connected to the topology analysis module and is used to form the pre-operation state of the dispatch instruction ticket;

[0045] The post-operation state building unit is connected with the operation type building unit and the topology analysis module to form the post-operation state of the dispatch instruction ticket;

[0046] The operation content construction unit is connected with the operation type construction unit, the pre-operation state construction unit, and the post-operation state construction unit to form the operation ticket content of the dispatch instruction ticket.

[0047] The beneficial effect of the present invention is that, compared with the prior art, it realizes the simulation of one-button sequential control for the first time in the field of substation simulation, and can transform the manual switching operation mode in the traditional substation simulation system into an automatic mode of automatic generation of operation tickets, one-button start of operation steps, automatic identification of equipment status and sequential execution of operation processes, which simplifies the operation steps, greatly shortens the operation time, reduces the demand for on-site operators, avoids omissions or missing items in operation, improves the automation level of operation, automatically verifies the correctness of operation by computer, reduces the possibility of human error, reduces the accident rate of power grid, and improves the safety of operation. In addition, in emergency situations, one-button sequential control can respond quickly and improve the efficiency of emergency handling. The addition of this function makes the function of the substation simulation system more complete, more consistent with the on-site operation and maintenance monitoring environment, helps operation and maintenance personnel to learn substation operation and maintenance knowledge in person, and improves the teaching quality of substation system simulation training. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is the primary wiring diagram of the 110kV simulated substation power grid;

[0049] Figure 2 It is a universal template for 110kV line bay diagram;

[0050] Figure 3 It is a one-button sequential control simulation flow chart;

[0051] Figure 4 It is the operation ticket preview flow chart;

[0052] Figure 5 It is a general template for main transformer bay diagram; DETAILED DESCRIPTION

[0053] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the present invention.

[0054] The present invention adopts the following technical solution.

[0055] A first aspect of the present invention provides a sequential control simulation method for a centralized control station simulation system, which specifically comprises the following steps:

[0056] Step 1: Establish a simulation system Figure 1 The primary wiring diagram shown and Figure 2 The interval diagram shown collects data information, including the equipment wiring mode and type, the operating status of the wiring mode and equipment type, and the corresponding switch and knife switch status at different times;

[0057] The switch knife gates include all the line switches, switches on each side of the main transformer, bus switches, etc. in the primary wiring diagram, as well as the line side knife gates, the transformer side knife gates, the bus side knife gates, etc.;

[0058] The wiring methods include single busbar wiring, double busbar wiring, 3 / 2 wiring, 4 / 3 wiring, double circuit breaker wiring, unit wiring, bridge wiring, polygonal wiring, etc.

[0059] Step 2: Based on the equipment wiring mode and type, the operating status of the wiring mode and equipment type, and the corresponding switch and knife switch status obtained in step 1, establish an equipment standard state library, that is, an equipment switch and knife switch association table, and the equipment standard state library includes a switch and knife switch model library; the equipment switch and knife switch association table includes a model domain and its corresponding instance, wherein:

[0060] The model domain includes: all line switches in the primary wiring diagram, switches on each side of the main transformer, bus switches, etc., as well as line-side switches, switches on each side of the transformer, switches on the bus side, etc.

[0061] The naming rules of the equipment switch knife switch association table include that switches are named in sequence using Brk+numbers, and knife switches are named in sequence using Disc+two-digit letters, the first digit is the switch number, and the second digit is numbered in sequence according to the knife switch sequence;

[0062] The operating status of the equipment in the model domain is jointly determined by the on / off status of the switch. The table is organized according to the method of the switch and its corresponding switch to obtain the relationship between the model domain and its corresponding instance, that is, the corresponding relationship between the naming of the switch and the switch in the instance wiring diagram, as shown in Table I.

[0063] Table Ⅰ Equipment switch knife switch association table

[0064]

[0065]

[0066] Step 3, based on the device switch knife switch association table obtained in step 2, establish the topological relationship between the device and the switch and knife switch, through topological analysis, associate each device of the simulation system and the switch and knife switch associated with the device, and establish an index, based on the set naming, form an index table, and obtain the device switch knife switch association table after indexing;

[0067] The topological analysis includes: micro-topology and macro-topological analysis; the working principle of establishing the topological relationship by topological search of the connection points and the opening and closing states of the devices. Specifically, the topological search is performed on all the actual connection points of the devices through micro-topology, and the opening and closing states of the switches are obtained during the search process, and logical computing nodes are formed at the same time; and the computing nodes are used as the smallest unit nodes to perform macro-topological search on the lines, transformer windings and other equipment in the network to form computing islands. At this point, the index relationship of the switches in the entire actual network is determined. The topological analysis module of the simulation system indexes each device and its associated switches and switches in the simulation system according to the above naming method / rules.

[0068] Step 4, based on the indexed device switch knife switch association table obtained in step 3, according to the association relationship between the device and the switch and knife switch, the device status including the running status, hot standby status, and cold standby status is decomposed into the corresponding switch status including the running status, hot standby status, and cold standby status;

[0069] Step 5: Based on the switch operation status obtained in step 4 and the device switch knife switch association table indexed in step 3, the dispatch instruction ticket is modeled, including type, i.e., operation type; value_pre, i.e., pre-operation status; value, i.e., post-operation status; and content, i.e., operation ticket content.

[0070] Specifically, the modeling process includes:

[0071] 5.1. Extract and organize the features from the switch states decomposed in step 4 to form the operation type of the dispatch instruction ticket;

[0072] 5.2. According to the equipment switch association table indexed in step 3, the current switch opening and closing states are extracted and sorted from the switch model library of the simulation system to form the pre-operation state of the dispatch instruction ticket;

[0073] 5.3. Based on the operation type obtained in step 5.1, perform corresponding operations, extract the on / off state of the target switch from the switch model library of the simulation system from the instance name recorded in the device switch association table indexed in step 3, and sort them out to form the post-operation state of the dispatch instruction ticket;

[0074] 5.4. Based on steps 5.1-5.3, record the status changes of all the switches involved and decompose and organize the resulting operation steps to form the operation ticket content of the dispatching instruction ticket;

[0075] Step 6: Based on the dispatch instruction ticket model established in step 5, the simulation system automatically generates a set of operation instruction tickets according to the equipment status recorded in the equipment switch knife switch association table indexed in step 3, the initial state, and the target state;

[0076] One-button sequential control simulation flow chart is as follows Figure 3 The 110kV Ebei branch line in Example 1 has an original state of operation and a target state of cold standby, and needs to retrieve an operation ticket "110kV Ebei branch line switches from operation to cold standby".

[0077] Call through Figure 5 Collect data information, establish indexes, and obtain the equipment switch knife switch association table. The single-mother wiring mode line switches from operation to cold standby state. brk1: 151 switch, disc1: 1516 knife switch, disc2: 1511 knife switch, disc3 is null, and the others are null.

[0078] Step 7, based on the operation instruction ticket obtained in step 6, a set of event sets including operation events and inspection events are formed by parsing the states of the switches and switches corresponding to different times, and the event sets are inserted into the list of events to be executed of the simulation system;

[0079] Operation events, such as remote control operations, etc.; inspection events, such as checking the separation and connection status, telemetry values, etc.;

[0080] The basic principle for switching a single-mother wiring line from operation to cold standby state is to first separate the brk1 switch, disc1 switch, disc2 switch and the corresponding inspection steps in sequence.

[0081] Decompose the operation ticket and decompose the 110kV Ebei branch line from operation to cold standby into two steps: 110kV Ebei branch line from operation to hot standby and 110kV Ebei branch line from hot standby to cold standby.

[0082] Then the event set is formed:

[0083] [Pull open the 110kV Ebeiling branch line 151 switch]

[0084] [Check that the 110kV Ebeiling branch line 151 switch is in the open position]

[0085] [Check that the green light of switch 151 of 110kV Ebeiling branch line is on]

[0086] [Check that the 110kV Ebeiling branch line 151 switch has no voltage and no current]

[0087] [Open the 1516 switch of the 110kV Ebeiling branch line]

[0088] [Check that the 1516 switch of the 110kV Ebeiling branch line is in the open position]

[0089] [Check that the green light of 1516 switch of 110kV Ebeiling branch line is on]

[0090] [Open the 1511 switch of the 110kV Ebeiling branch line]

[0091] [Check that the 110kV Ebeiling branch line 1511 switch is in the open position]

[0092] [Check that the green light of 1511 switch of 110kV Ebeiling branch line is on] There is a preview mode in the simulation training system, such as Figure 4 ,During rehearsal, the event execution can be simulated, and the real-time library data will not be ,directly updated. Knowledge is deduced through the system memory to ,confirm whether the event can be rehearsed successfully.

[0093] Step 8: The simulation system analyzes the states of the switches and circuit breakers at different times and feeds back the corresponding states including successful operation or failed operation, thereby completing one-button sequential control.

[0094] When executing the operation ticket, the events are simulated and executed in the simulation system according to the time sequence. The check event is to confirm whether the operation is successful. If the check target value is not successful, the system will display the operation failed. One-key sequence control aborts.

[0095] Embodiment 2 of the present invention provides a sequential control simulation system of a centralized control station simulation system, and runs a sequential control simulation method of a centralized control station simulation system, wherein the system comprises: an information acquisition module, an equipment standard state library module, a topology analysis module, a state decomposition module, a dispatch instruction ticket modeling module, an operation instruction generation module, and an instruction parsing feedback module;

[0096] The information acquisition module establishes a primary wiring diagram and interval diagram based on the simulation system, and collects data information, including the equipment wiring mode and type, the operation status of the wiring mode and equipment type, and the corresponding switch and knife switch status at different times;

[0097] The equipment standard state library establishment module is connected to the information acquisition module, and is used to establish the equipment standard state library, i.e., the equipment switch and knife switch association table, based on the equipment wiring mode and type, the wiring mode and the operating state of the equipment type, and the corresponding switch and knife switch states obtained by the information acquisition module. The equipment standard state library includes a switch and knife switch model library;

[0098] The topology analysis module is connected with the equipment standard state library module, and based on the equipment switch knife switch association table obtained by the equipment standard state library module, the topological relationship between the equipment and the switch knife switch is established, and each equipment of the simulation system and the switch knife switch associated with the equipment are associated, and an index is established. Based on the set naming, an index table is formed to obtain the equipment switch knife switch association table after the index is established;

[0099] A topology analysis module, specifically including a micro-topology unit and a macro-topology unit;

[0100] The micro-topology unit is connected to the equipment standard state library module. The micro-topology performs a topological search on all actual connection points of the equipment. During the search, the on / off state of the switch is obtained based on the equipment standard state library module, and a logical calculation node is formed at the same time.

[0101] The macro-topology unit is connected to the micro-topology unit. The computing node obtained based on the micro-topology is the minimum unit node. The macro-topology search is performed on the lines, transformer windings and other equipment in the network to form a computing island and obtain the index relationship of the switch in the entire actual network.

[0102] The state decomposition module is connected to the topology analysis module, and based on the indexed device switch and knife switch association table obtained by the topology analysis module, according to the association relationship between the device and the switch and knife switch, the device state including the running state, the hot standby state, and the cold standby state is decomposed into the corresponding switch state including the running state, the hot standby state, and the cold standby state;

[0103] The dispatching instruction ticket modeling module is connected with the state decomposition module and the topology analysis module. Based on the switch operation state obtained by the state decomposition module and the indexed equipment switch knife switch association table obtained by the topology analysis module, the dispatching instruction ticket is modeled, including the operation type, the state before the operation, the state after the operation, and the operation ticket content, to obtain the dispatching instruction ticket model;

[0104] The dispatch instruction ticket modeling module includes an operation type building unit, a pre-operation state building unit, a post-operation state building unit, and an operation content building unit;

[0105] The operation type construction unit is connected to the state decomposition module, and based on the switch state obtained by the state decomposition module, the features are extracted and sorted to form the operation type of the dispatch instruction ticket;

[0106] The pre-operation state construction unit is connected with the topology analysis module, and the indexed equipment switch association table is established based on the topology analysis module. The current switch opening and closing states are extracted and sorted from the switch model library of the simulation system to form the pre-operation state of the dispatch instruction ticket.

[0107] The post-operation state construction unit is connected with the operation type construction unit and the topology analysis module. Based on the operation type obtained by the operation type construction unit, after performing the corresponding operation, the instance name of the indexed device switch knife association table is established through the topology analysis module, and the opening and closing states of the target switch knife are extracted and sorted from the switch knife model library of the simulation system to form the post-operation state of the dispatch instruction ticket;

[0108] The operation content construction unit is connected with the operation type construction unit, the pre-operation state construction unit and the post-operation state construction unit to record and decompose the state changes of the switch knife switch to form the operation steps to form the operation ticket content of the dispatch instruction ticket.

[0109] The operation instruction generation module is connected with the dispatch instruction ticket modeling module and the topology analysis module. Based on the dispatch instruction ticket model obtained by the dispatch instruction ticket modeling module and the device status recorded in the indexed device switch knife switch association table obtained by the topology analysis module, a set of operation instruction tickets is automatically generated according to the initial state and the target state.

[0110] The instruction parsing feedback module is connected to the operation instruction generation module and the information collection module. Based on the operation instruction ticket obtained by the operation instruction generation module, it is parsed according to the timing obtained by the information collection module to form an event set including operation events and inspection events, which are inserted into the list of pending events of the simulation system. After parsing, the corresponding status including operation success or operation failure is fed back.

[0111] The beneficial effect of the present invention is that, compared with the prior art, for the first time, one-button sequential control simulation is realized in the field of substation simulation, and the manual switching operation mode in the traditional substation simulation system can be transformed into an automatic mode of automatic generation of operation tickets, one-button start of operation steps, automatic identification of equipment status and sequential execution of operation processes, which simplifies the operation steps, greatly shortens the operation time, reduces the demand for on-site operators, avoids omissions or missing items in operation, improves the automation level of operation, automatically verifies the correctness of operation by computer, reduces the possibility of human error, reduces the accident rate of power grid, and improves the safety of operation. In addition, in emergency situations, one-button sequential control can respond quickly and improve the efficiency of emergency handling. The addition of this function makes the function of the substation simulation system more complete, more consistent with the on-site operation and maintenance monitoring environment, helps operation and maintenance personnel to learn substation operation and maintenance knowledge in person, and improves the teaching quality of substation system simulation training.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A sequential control simulation method for a centralized control station simulation system, characterized in that: The steps include: Step 1: Establish a primary wiring diagram and interval diagram through the simulation system, and collect data information, including equipment wiring mode and type, operating status, and corresponding switch and knife switch status at different times; Step 2: Based on the data information collected in step 1, establish a device standard state library, the device standard state library is a device switch knife switch association table, and the device standard state library includes a switch knife switch model library; Step 3, based on the device switch knife switch association table obtained in step 2, establish the topological relationship between the device and the switch and knife switch, associate each device of the simulation system and the switch and knife switch associated with the device through topological analysis, and establish an index to obtain the device switch knife switch association table after the index is established; Step 4, based on the equipment switch knife switch association table obtained in step 3, according to the association between the equipment and the switch and knife switch, the operating state of the switch is obtained by decomposing the equipment operating state; Step 5, based on the switch operation status obtained in step 4 and the equipment switch knife switch association table obtained in step 3, the dispatch instruction ticket is modeled to obtain a dispatch instruction ticket model; Step 6: Based on the dispatch instruction ticket model established in step 5, the simulation system automatically generates a set of operation instruction tickets according to the equipment status recorded in the equipment switch knife switch association table indexed in step 3; Step 7, based on the operation instruction ticket obtained in step 6, the switch and knife switch states corresponding to different moments obtained in step 1 are parsed to form an event set including operation events and inspection events, and inserted into the list of pending events of the simulation system; Step 8, based on the event set obtained in step 7, the simulation system analyzes the switch and knife switch states corresponding to different moments obtained in step 1 and feeds back the corresponding states including successful operation or failed operation, completing one-button sequential control.

2. The sequential control simulation method of a centralized control station simulation system according to claim 1, characterized in that: Step 2 includes: The equipment switch knife switch association table includes the model domain and its corresponding instance; The equipment switch knife switch association table names the switches in sequence through Brk+numbers, and through Disc+two-digit letters, the first digit is the switch number, and the second digit is the knife switch numbered in sequence.

3. The sequential control simulation method of a centralized control station simulation system according to claim 1, characterized in that: Step 3 includes: Through micro-topology and macro-topology, a topological search is performed on the connection points and the disconnection and connection states of the devices to establish topological relationships. Each device in the simulation system and its associated switches and circuit breakers are indexed according to the set naming method.

4. The sequential control simulation method of a centralized control station simulation system according to claim 1, characterized in that: Step 4 includes: The state of the device including the running state, the hot standby state and the cold standby state is decomposed into the states of the corresponding switches including the running state, the hot standby state and the cold standby state.

5. The sequential control simulation method of a centralized control station simulation system according to claim 1, characterized in that: Step 5 includes: Step 5.1, extracting and arranging features from the equipment switch states decomposed in step 4 to form the operation type of the dispatch instruction ticket; Step 5.2, according to the equipment switch knife switch association table indexed in step 3, extract and sort the current switch knife switch opening and closing states from the existing switch knife switch model library of the simulation system to form the pre-operation state of the dispatch instruction ticket; Step 5.3, based on the operation type obtained in step 5.1, perform corresponding operations, extract the on / off states of the target switch from the switch model library of the simulation system from the instance name recorded in the device switch association table indexed in step 3, and sort them out to form the post-operation state of the dispatch instruction ticket; Step 5.4, based on steps 5.1-5.3, the state changes of the switch are recorded and decomposed into the formed operation steps to form the operation ticket content of the dispatch instruction ticket.

6. The sequential control simulation method of a centralized control station simulation system according to claim 1, characterized in that: Step 7 includes: Through the rehearsal mode of the simulation system, the event execution is simulated to determine whether the event can be rehearsed successfully.

7. A centralized control station simulation system, running a sequential control simulation method of a centralized control station simulation system as claimed in any one of claims 1 to 6, characterized in that: include: Information collection module, equipment standard status library module, topology analysis module, status decomposition module, dispatch instruction ticket modeling module, operation instruction generation module, instruction parsing feedback module; Information collection module, used to collect data information of primary wiring diagram and interval diagram; The equipment standard state library establishment module is connected with the information acquisition module, and establishes the equipment standard state library, i.e., the equipment switch knife switch association table, based on the data obtained by the information acquisition module; The topology analysis module is connected to the equipment standard state library module, and is used to associate each device of the simulation system and the switches and switches associated with the devices, and to establish an index to obtain the equipment switch and switch association table after the index is established; A state decomposition module, connected to the topology analysis module, for decomposing the state of the device into the states of the corresponding switches; The dispatch order ticket modeling module is connected with the state decomposition module and the topology analysis module to model the dispatch order ticket and obtain the dispatch order ticket model; The operation instruction generation module is connected with the dispatch instruction ticket modeling module and the topology analysis module, and is used to automatically generate a set of operation instruction tickets according to the initial state and target state of the equipment; The instruction parsing feedback module is connected to the operation instruction generation module and the information collection module, and is used to form an event set including operation events and inspection events, and insert it into the list of pending events of the simulation system; after parsing, it feedbacks the corresponding status including operation success or operation failure.

8. The sequential control simulation system of the centralized control station simulation system according to claim 7, characterized in that: Topology analysis module, including micro-topology unit and macro-topology unit; The micro-topology unit is connected to the device standard state library module to perform topological search on all actual connection points of the device and form logical computing nodes.

9. The sequential control simulation system of the centralized control station simulation system according to claim 8, characterized in that: The macro-topology unit is connected to the micro-topology unit. The computing node obtained based on the micro-topology is the minimum unit node. A macro-topology search is performed on the lines, transformer windings and other equipment in the network to form a computing island and obtain the index relationship of the switch in the entire actual network.

10. The sequential control simulation system of the centralized control station simulation system according to claim 7, characterized in that: The dispatch instruction ticket modeling module includes an operation type building unit, a pre-operation state building unit, a post-operation state building unit, and an operation content building unit; The operation type building unit is connected with the state decomposition module to form the operation type of the dispatch instruction ticket; The pre-operation state construction unit is connected to the topology analysis module and is used to form the pre-operation state of the dispatch instruction ticket; The post-operation state building unit is connected with the operation type building unit and the topology analysis module to form the post-operation state of the dispatch instruction ticket; The operation content construction unit is connected with the operation type construction unit, the pre-operation state construction unit, and the post-operation state construction unit to form the operation ticket content of the dispatch instruction ticket.

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