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| State Evaluation of Vacuum Circuit Breakers in Tropical Island Environment Based on G1-independence Weight Method |
| Received:March 10, 2021 Revised:May 09, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.11.008 |
| KeyWord:G1 method independence weight method tropical island vacuum circuit state evaluation |
| Author | Institution |
| ZHAO Hai-long |
Electric Power Research Institute of Hainan Power Grid Co., Ltd, Haikou , China;Laboratory of Tropical Smart Grid , Haikou , China |
| PANG Song-ling |
Electric Power Research Institute of Hainan Power Grid Co., Ltd, Haikou , China;Laboratory of Tropical Smart Grid , Haikou , China |
| HUO Mei-yi |
Electric Power Research Institute of Hainan Power Grid Co., Ltd, Haikou , China;Laboratory of Tropical Smart Grid , Haikou , China |
| HUANG Ting-cheng |
State Key Laboratory of Environmental Adaptability for Industrial Products, China National Electric Apparatus Research Institute Co., Ltd, Guangzhou , China |
| LI Zhi |
State Key Laboratory of Environmental Adaptability for Industrial Products, China National Electric Apparatus Research Institute Co., Ltd, Guangzhou , China |
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| Abstract: |
| 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. |
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