CN-122026619-A - Communication cooperative control method, system and medium for substation automation equipment

CN122026619ACN 122026619 ACN122026619 ACN 122026619ACN-122026619-A

Abstract

The application provides a communication cooperative control method, a system and a medium for substation automation equipment, and relates to the technical field of communication control, wherein the method comprises the steps of collecting control dependency relationship and real-time communication link state between equipment and establishing an equipment control association topological graph; the method comprises the steps of forming a communication-control coupling weight matrix according to the dependence intensity of each control edge and combining with the state of a real-time communication link, executing collaborative optimization calculation on a control information transmission path in a device control association topological graph, executing real-time scheduling parameter solving in a mode of minimizing control information transmission cost and keeping control action time sequence consistency, and executing communication collaborative control management of each automation device of a transformer substation. The application solves the technical problem of low communication efficiency caused by the contradiction between the dynamic fluctuation and the static configuration of the network state in the prior art, introduces the communication-control coupling weight matrix and the collaborative optimization calculation, and improves the communication efficiency of the substation automation equipment.

Inventors

CUI DEXIN
ZHANG HONGWANG
SUN FUYAO
CHEN JIANHUA

Assignees

南京弘特浩电气有限公司

Dates

Publication Date: 20260512
Application Date: 20260408

Claims (10)

1. The communication cooperative control method for the substation automation equipment is characterized by comprising the following steps of: Acquiring control dependency relations among devices of all automation devices of a transformer substation and real-time communication link states in a device communication network, and establishing a device control association topological graph according to the control dependency relations; according to the dependency intensity of each control edge in the equipment control association topological graph, calculating the communication-control coupling weight of each control edge by combining with the real-time communication link state to form a communication-control coupling weight matrix, wherein the communication-control coupling weight matrix is used for representing the influence of the communication state on the control coordination degree in the transmission process of different equipment control information; Based on the communication-control coupling weight matrix, executing collaborative optimization calculation on a control information transmission path in a device control association topological graph, and executing real-time scheduling parameter solving in a mode of minimizing control information transmission cost and keeping control action time sequence consistency, wherein the real-time scheduling parameters comprise control instruction sending time, communication cache scheduling sequence and device local execution triggering time; And executing communication cooperative control management of each automation device of the transformer substation according to the real-time scheduling parameters.
2. The communication cooperative control method for a substation automation device according to claim 1, wherein performing cooperative optimization calculation on a control information transfer path in a device control association topology based on the communication-control coupling weight matrix includes: Calculating the propagation cost contribution of each control information transmission path in the equipment control association topological graph according to the communication-control coupling weight matrix, and identifying the time sequence coupling relation among a plurality of control information propagation processes by combining the equipment control dependency relation; Constructing a propagation collaborative tabu set by utilizing the propagation cost contribution and the time sequence coupling relation, wherein the propagation collaborative tabu set is used for representing a control information propagation combination which can cause abnormal amplification of control information propagation cost or control action time sequence mismatch under the current communication link state condition; And in the process of executing the real-time scheduling parameter solving, executing iteration constraint by using the propagation cooperative tabu set so as to execute cooperative optimization calculation.
3. The communication cooperative control method for a substation automation device according to claim 2, wherein in performing a real-time scheduling parameter solving process, performing iterative constraint using the propagation cooperative tabu set, comprising: Under the constraint of a propagation synergy tabu set, constructing a control information propagation gradient field based on the propagation cost contribution and a time sequence coupling relation, wherein the control information propagation gradient indicates the cost reduction direction and the time sequence constraint satisfaction degree of the control information along each propagation path at each communication node; Based on the control information propagation gradient field, performing gradient driving iterative adjustment on the sending time of the real-time scheduling parameters at each communication node, the communication cache scheduling sequence and the equipment local execution triggering time, so that the real-time scheduling parameters dynamically evolve along the gradient direction in the propagation process, and meanwhile, avoiding propagation combinations marked in a propagation collaborative tabu set; in the iterative adjustment process, consistency of action time sequences of all control instructions and equipment control dependency relations is continuously evaluated, timing synchronization of the control actions under the condition that the state of a communication network is changed is ensured, and meanwhile propagation cost is minimized, so that collaborative optimization calculation is executed.
4. The communication cooperative control method for a substation automation device according to claim 3, further comprising, in performing the real-time scheduling parameter solving process: Identifying abnormal path segments by utilizing a dynamic identification channel, and reconstructing propagation path combinations under the condition of meeting tabu constraint; based on the reconstructed propagation path combination, the control information is utilized to propagate the gradient field to iteratively adjust the real-time scheduling parameters.
5. The communication cooperative control method for a substation automation device according to claim 4, wherein identifying the abnormal path segment using the dynamic identification channel comprises: Activating a consistency evaluation layer in the dynamic identification channel, calculating coupling influence factors of all control edges according to the communication-control cooperative weight matrix, and forming a path cost and time sequence consistency evaluation index by using the coupling influence factors, propagation cost contribution and equipment control dependency; And identifying abnormal path segments which cause abnormal amplification of the propagation cost of the control information or control action time sequence mismatch in the control association topological graph by utilizing the output of the consistency evaluation layer.
6. The communication cooperative control method for a substation automation device according to claim 4, wherein in the reconfigurable path segment set, a plurality of candidate propagation path combinations are generated by replacing alternative communication links, adjusting a node order, or combining branch paths, and a plurality of candidate propagation path combination screening is performed to reconstruct the propagation path combinations.
7. The communication cooperative control method for a substation automation device according to claim 1, wherein the real-time communication link state includes link delay, packet loss rate, and bandwidth occupation data.
8. The communication cooperative control method for a substation automation device according to claim 1, wherein establishing a device control association topology according to a control dependency relationship comprises: defining each automation device in the transformer substation as a node in the topological graph, and distributing corresponding node attributes for different types of devices; Establishing topological graph edges according to control dependency relations among all automatic devices, wherein each topological graph edge is connected with a device node with control dependency, and endowing each topological graph edge with a dependency strength weight, and the dependency strength weight is constructed by comprehensively calculating the triggering frequency of a control command, the influence degree of control and the response time of the device; and establishing a device control association topological graph according to the nodes and the topological graph edges in the topological graph.
9. A communication cooperative control system for a substation automation device, characterized by the steps for implementing the communication cooperative control method for a substation automation device according to any one of claims 1 to 8, the communication cooperative control system for a substation automation device comprising: The topology diagram construction module is used for acquiring control dependency relations among devices of all automation devices of the transformer substation and real-time communication link states in a device communication network, and building a device control association topology diagram according to the control dependency relations; The coupling quantization module is used for calculating communication-control coupling weights of all control edges according to the dependence intensity of all control edges in the equipment control association topological graph and combining with the real-time communication link state to form a communication-control coupling weight matrix, wherein the communication-control coupling weight matrix is used for representing the influence of the communication states on the control coordination degree in the transmission process of different equipment control information; The dynamic optimization module is used for executing collaborative optimization calculation on a control information transmission path in the equipment control association topological graph based on the communication-control coupling weight matrix, and executing real-time scheduling parameter solving in a mode of minimizing control information transmission cost and keeping control action time sequence consistency, wherein the real-time scheduling parameters comprise control instruction sending time, communication cache scheduling sequence and equipment local execution triggering time; and the execution control module is used for executing the communication cooperative control management of each automation device of the transformer substation according to the real-time scheduling parameters.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed, implements the steps of the communication cooperative control method for substation automation equipment according to any of claims 1 to 8.

Description

Communication cooperative control method, system and medium for substation automation equipment Technical Field The application relates to the technical field of communication control, in particular to a communication cooperative control method, a system and a medium for substation automation equipment. Background In the field of substation automation, peer-to-peer communication and information sharing between devices are typically achieved through static or semi-static configuration methods. However, the transformer substation communication network often faces dynamic fluctuation caused by burst flow, background data interference and the like in actual operation, static configuration is difficult to adapt to real-time change of network state, and the problems of uncertain control information transmission delay, increased jitter and the like are easily caused, so that the certainty and reliability of control instruction transmission are affected, the contradiction between network dynamics and configuration rigidity is formed, the communication efficiency is reduced, the time sequence mismatch of control actions depending on multi-information linkage is more likely to be caused, and the cooperative control efficiency and reliability of transformer substation automation equipment are affected. In summary, in the prior art, due to the contradiction between the dynamic fluctuation and the static configuration of the network state, the delay of the control information transmission is uncertain, and the communication efficiency of the substation automation equipment is further affected. Disclosure of Invention The application aims to provide a communication cooperative control method, a communication cooperative control system and a communication cooperative control medium for substation automation equipment, which are used for solving the technical problem that the communication efficiency of the substation automation equipment is further affected due to the uncertainty of time delay of control information transmission caused by the contradiction between dynamic fluctuation and static configuration of a network state in the prior art. In view of the above problems, the application provides a communication cooperative control method, a system and a medium for substation automation equipment. The communication cooperative control method for the substation automation equipment comprises the steps of collecting control dependency relations among equipment of the substation automation equipment and real-time communication link states in an equipment communication network, building an equipment control association topological graph according to the control dependency relations, calculating communication-control coupling weights of all control sides according to the dependency strength of all control sides in the equipment control association topological graph and combining the real-time communication link states to form a communication-control coupling weight matrix, wherein the communication-control coupling weight matrix is used for representing the influence of the communication states in the transmission process of control information of different equipment on the control cooperative degree, executing cooperative optimization calculation on the control information transmission paths in the equipment control association topological graph based on the communication-control coupling weight matrix, executing real-time scheduling parameter solving in a mode of minimizing the control information transmission cost and keeping control action time sequence consistency, and executing the real-time scheduling parameter solving according to the control instruction sending time, the communication scheduling sequence and the equipment self-control scheduling parameter executing the equipment control cooperative management according to the communication scheduling parameter of the substation automation equipment. Optionally, the real-time communication link state includes link delay, packet loss rate, and bandwidth occupancy data. The method comprises the steps of defining each piece of motorized equipment in a transformer substation as a node in a topological graph, distributing corresponding node attributes for different types of equipment, establishing topological graph edges according to control dependency relations among the pieces of automatic equipment, connecting equipment nodes with control dependencies by each piece of topological graph edge, giving each piece of topological graph edge a dependency strength weight, constructing the dependency strength weight by comprehensively calculating the triggering frequency of a control command, the control influence degree and the response time of the equipment, and establishing equipment control association topological graph according to the nodes in the topological graph and the topological graph edges. Optionally, according to the communication-control coupling weight matrix,