Power distribution network control application network topology automatic identifying method

Abstract

The present invention relates to the field of electric power automation. A method for controlling automatic identification of an application network topology by a power distribution network, the method comprising the following steps: 1. Statically configuring switch attributes; 2. A power distribution network intelligent terminal STU determines whether a query trigger condition is satisfied; 3. An inquirer sends a query command to start the query into an application network topology; 4. Replying to the query command; 5. Receiving the query command; 6. Checking the integrity of the switch attribute information; 7. Forming an application network topology. The method for controlling automatic identification of an application network topology by a power distribution network has few calculations and high speed, ensures the integrity and reliability of information, and is particularly suitable for distributed intelligent control of the power distribution network. The establishment of the application network topology is distributed to each power distribution network intelligent terminal STU, thus reducing heavy calculation, and being suitable for application having relatively few embedded system software and hardware resources.

Description

technical field [0001] The invention relates to an automatic identification method of distribution network control application network topology, which belongs to the field of electric power automation. In particular, it relates to an application-oriented distribution network control application network topology automatic identification method. Background technique [0002] The topology analysis of the power distribution network is based on the connection relationship of the distribution electrical components, and the entire network is regarded as a topological diagram combining lines and points, and then the topological link analysis of the entire network is performed according to the power supply nodes, switch nodes, etc. The distribution network is the basis for state estimation, power flow calculation, fault location, isolation and power restoration, network reconfiguration and other analysis. The structure of the power distribution network is huge and complex, and the n...

AI Technical Summary

Problems solved by technology

The structure of the power distribution network is huge and complex, and the network structure is often changed due to the opening and closing of switches in the fault load transfer operation

[0003] At present, the existing research in this field at home and abroad includes the relational table matrix representation, the network-based matrix representation, the node elimination method, the tree search representation, and the discrete processing method. These methods are all developed based on the master station system. The system has high requirements and slow speed, and cannot be applied in power distribution terminals, nor can it adapt to the real-time requirements of distributed intelligence for protection and control

[0004] Patent document 02116363.4 proposes a method for collecting network topology information of a communication network, which is used for collecting network topology information in the Internet Protocol and can identify the positional relationship of each device in the network. In the field of communication, since the positions of each device are relatively scattered and not Fixed, so less accurate

However, in the power distribution network, since the number and installation positions of the power distribution terminal equipment are relatively fixed, and the reliability requirements are particularly high, the method for collecting network topology information of a communication network published in this patent document is not applicable. in distribution network

Images