| 引用本文: | 陈家超,张勇军,黄国权,等.计及保护和断路器告警信息可信度的电网故障诊断优化模型[J].电力系统保护与控制,2021,49(4):28-36.[点击复制] |
| CHEN Jiachao,ZHANG Yongjun,HUANG Guoquan,et al.Optimal model of power grid fault diagnosis considering reliability of protection and circuit breaker alarm information[J].Power System Protection and Control,2021,49(4):28-36[点击复制] |
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| 摘要: |
| 为提高已有电网故障诊断解析模型的容错性与求解效率，提出了计及保护和断路器动作状态告警信息可信度的电网故障诊断优化模型。首先，基于保护及断路器自检信息对告警信息的可信度进行评估。其次，以保护和断路器的告警信息与期望动作状态差异最小、期望动作状态可信度最大为优化目标，构建故障诊断多目标优化模型。进一步线性化优化模型，基于加权和法和模糊隶属度函数求取最优解。最后，通过算例验证了该模型的高效性与通用性。该模型在告警信息存在错误时仍能对电网故障进行快速诊断，具有良好的应用前景。 |
| 关键词: 自检信息 告警信息 可信度 故障诊断 多目标优化 |
| DOI：DOI: 10.19783/j.cnki.pspc.200459 |
| 投稿时间：2020-06-25修订日期：2020-11-12 |
| 基金项目:广东省自然科学基金项目资助(2017A030313304) |
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| Optimal model of power grid fault diagnosis considering reliability of protection and circuit breaker alarm information |
| CHEN Jiachao,ZHANG Yongjun,HUANG Guoquan,HAO Jinbao,HUANG Tingcheng,HUANG Chunyan |
| (1. Research Center of Smart Energy Technology, School of Electric Power, South China University of Technology,
Guangzhou 510640, China; 2. Guangzhou Power Electric Technology Co., Ltd., Guangzhou 510670, China) |
| Abstract: |
| In order to improve the fault tolerance and solving efficiency of existing analytical models for power grid fault diagnosis, this paper proposes an optimization model for power grid fault diagnosis that takes into account the reliability of protection and circuit breaker action state alarm information. First, the reliability of alarm information is evaluated based on the protection and circuit breaker self-test information. Secondly, a multi-objective optimization model is constructed to minimize the difference between the warning information and the expected action state, and maximize the expected action state credibility of protection and circuit breaker. Thirdly, the optimization model is linearized and the optimal solution is obtained based on the weighted sum method and the fuzzy membership function. Finally, the examples verify the efficiency and versatility of the model. The model in this paper can quickly diagnose power grid faults when there are errors in the alarm information, and has good application prospects.
This work is supported by the Natural Science Foundation of Guangdong Province (No. 2017A030313304). |
| Key words: self-check information warning information trustworthiness fault diagnosis multi-objective optimization |
