Typical test network with power distribution automation

Abstract

The invention provides a typical test network with power distribution automation, which comprises three transformer substation 10kV buses, three 10kV outgoing lines, three transformer substation 10kV outgoing line switches, 14 power distribution section switches and three power distribution interconnection switches, wherein the components are combined into four network states such as a multi-power-supply latticed power supply network which comprises a looped network and a radiation circuit, a network which is provided with a faulted power supply and transfers the power through other power supplies, a network which is provided with a faulted circuit and transfers the power through the other power supplies, a network which is provided with a faulted radiation circuit and only needs failure isolation and the like by utilizing the on and off of the switches. The network provided by the invention can simulate four conditions which usually occur in the engineering such as partial communication interruption, power distribution terminal misinformation or failure information omission, switch operation failure, switch operation refuse and the like and can be used for verifying the failure positioning practice functions of a power distribution automation system. The network provided by the invention has the advantages that the number of the needed power supplies and switches is appropriate; and the structure is concise and practical, and is suitable for the establishment of a test network based on real equipment.

Description

technical field [0001] The invention belongs to the field of distribution automation, and more specifically relates to a typical test network of distribution automation. Background technique [0002] 1. Principles of fault location and network reconstruction [0003] The basic principle of distribution network fault location and network reconfiguration is that when a permanent fault occurs in the feeder ring network, the protection action of the outlet switch of the substation (the primary device uses a load switch) or the line section switch (the primary device uses a circuit breaker) trips and The failure of reclosing causes the feeder to lose power; the intelligent terminal at each distribution switch on the ring network uploads the information of whether there is a fault current flow, and the master station / substation system locates the fault section on the basis of network topology analysis and data collection , the criterion is to traverse all the line sections on the...

AI Technical Summary

Problems solved by technology

[0006] At present, domestic related research still focuses on fault location and network reconfiguration algorithms, and the networks used are relatively complex and difficult to engineer; in engineering applications, distribution automation systems of various manufacturers usually use dual power loops with multiple nodes network as the research object, focusing on functional development for specific networks combined with engineering applications

There are still few researches on general-purpose typical test networks in China, and typical test networks based on real equipment have not been reported

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