| 引用本文: | 杨墨缘,欧阳森,张真,王凤学,王天霖.考虑多任务剖面及其非工作故障延续性的直流断路器可靠性模型[J].电力自动化设备,2022,42(12): |
| YANG Moyuan,OUYANG Sen,ZHANG Zhen,WANG Fengxue,WANG Tianlin.Reliability model of DC circuit breaker considering multi mission profiles and its non-operating fault continuity[J].Electric Power Automation Equipment,2022,42(12): |
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| 摘要: |
| 直流断路器(DCCB)具有分、合闸状态及分、合闸过程多任务剖面，且不同任务剖面工作组件的差异性可能造成某任务剖面的非工作故障延续到下一任务剖面而造成其工作故障。针对现有研究未考虑多任务剖面及其非工作故障延续性对DCCB可靠性建模的影响的问题，提出一种考虑多任务剖面及其非工作故障延续性的DCCB可靠性模型。首先分析DCCB拓扑结构及工作原理，根据保护区状态对DCCB进行任务剖面划分，并对不同任务剖面间的非工作故障延续性进行分析。然后通过可靠性预计法建立各任务剖面可靠性模型。之后基于马尔可夫过程建立考虑多任务剖面及其非工作故障延续性的DCCB可靠性解析模型。最后通过仿真算例，计算了DCCB的不同任务剖面可靠性及其综合可靠性，分析了关键子模块冗余配置对DCCB可靠性的影响，并与传统模型进行对比，验证了所提模型的合理性。 |
| 关键词: 多任务剖面 非工作故障延续性 直流断路器 可靠性预计法 马尔可夫过程 可靠性模型 |
| DOI：10.16081/j.epae.202204033 |
| 分类号:TM561 |
| 基金项目:国家自然科学基金资助项目(51677073)；中央高校基本科研业务费重大产学研合作扶持专项(x2dlD2201280)；中国南方电网公司科技项目(GDKJXM20173253) |
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| Reliability model of DC circuit breaker considering multi mission profiles and its non-operating fault continuity |
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YANG Moyuan1, OUYANG Sen1, ZHANG Zhen1, WANG Fengxue1, WANG Tianlin2
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1.School of Electric Power, South China University of Technology, Guangzhou 510640, China;2.Power System Planning Research Center of Guangdong Power Grid Co.,Ltd.,Guangzhou 510030, China
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| Abstract: |
| DCCB(Direct Current Circuit Breaker) has multi mission profiles of opening and closing states and opening and closing processes, and the difference of operating components in different mission profiles may cause non-operating fault of one mission profile to continue to the next mission profile, resulting in its operating fault. Aiming at the problem that the existing research does not consider the influence of multi mission profiles and their non-operating fault continuity on DCCB reliability modeling, a DCCB reliability model considering multi mission profiles and their non-operating fault continuity is proposed. Firstly, the topology and working principle of DCCB are analyzed. According to the status of the protection area, the DCCB is divided into mission profiles, and the continuity of non-operating faults among different mission profiles is analyzed. Then the reliability model of each mission profile is established by reliability prediction method. Based on Markov process, an analytical model of DCCB reliability considering multi mission profiles and non-operating fault continuity is established. Finally, the reliability of different mission profiles of DCCB and their comprehensive reliability are calculated by a simulation example, and the influence of redundancy configuration of key submodules on the reliability of DCCB is analyzed. Compared with the traditional model, the results verify the rationality of the proposed model. |
| Key words: multi mission profiles non-operating fault continuity direct current circuit breaker reliability prediction method Markov process reliability model |
