区域自治式后备保护分区方案

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Abstract A zoning scheme of regional autonomy back-up protection was proposed in this paper. Firstly, the zoning principles including the protection scope of main stations, the treatment method of boundary components, and the tactics coping with main stations failure were formulated. With these principles the protection system will possess the following characteristics. The first point is information need and communication delay are balanced to ensure information completeness and protection rapidity. Another is each component can be protected independently by at least one main station for the purpose of simplifying protection coordination strategies. The third is that faults are able to be decided accurately with the decision function failure in any main station so as to enhance the adaptability of the protection system. Based on those, the zoning methods were presented. The narrow sense adjacency matrix was defined to select main stations and divide the protection scope of each main station. Then the paper analyzed the operation logic of regional back-up protection and faults can be cleared reliably in various conditions. At the last, analysis results of the actual system verified the effectiveness of this zoning scheme.

Key words： Regional autonomy back-up protection zoning scheme boundary component narrow sense adjacency matrix operation logic

Received: 17 June 2011 Published: 27 November 2013

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