基于G1-独立性权数法的热带海岛环境真空断路器状态评估

目的 提高热带海岛环境下真空断路器状态评估方法的全面性和准确性,为高温、高湿、高辐照、高盐雾气候环境下真空断路器的差异化运维和状态检修提供有效的数据基础.方法 统计分析热带海岛地区电力设备的缺陷类型和原因,构建断路器的环境状态评价指标,实现真空断路器的综合评价指标体系的拓展.采用序关系分析法(G1)和独立性权数法组合赋权,实现断路器运行状态的综合评估.结果 通过实例分析验证了此真空断路器评估方法的可行性,G1-独立性权数法综合考虑了专家主观经验及指标数据客观规律,能够降低指标间重复性信息对断路器评估结果的不利影响.结论 G1-独立性权数法有效计及了真空断路器所处的环境状态,综合考虑了主观经验和客观规律,能够减小指标间重复信息所导致的指标权重误差,保证了热带海岛环境下真空断路器评估结果的客观性和准确性.

State Evaluation of Vacuum Circuit Breakers in Tropical Island Environment Based on G1-independence Weight Method

In order to improve the comprehensiveness and accuracy of the vacuum circuit breaker condition assessment method in tropical islands, the paper provides an effective data basis for the differentiated operation and condition maintenance of vacuum circuit breakers under high temperature, high humidity, high radiation, and high salt spray climates. The paper analyzes the types and causes of defects in power equipment in tropical islands. The evaluation index of the environmental state of the switch is proposed, and the comprehensive evaluation index system of the outdoor vacuum circuit is expanded. The order relation analysis method (G1) and the independence weight method are used to carry out combined weighting to realize the comprehensive evaluation of the operating state of the circuit breakers. The feasibility of the proposed vacuum circuit breaker evaluation method is verified through case analysis. The G1-independence weight method comprehensively considers the subjective experience of experts and the objective law of index data, which can reduce the adverse effect of repetitive information between indexes on the evaluation results of circuit breakers. The proposed state evaluation method effectively takes into account the environmental state of the vacuum circuit breaker, comprehensively considers subjective experience and objective laws, can reduce the index weight error caused by the repeated information between the indicators, and ensures the vacuum circuit breaker in the tropical island environment, the objectivity and accuracy of the evaluation results of the device.