Reliability Model of MMC Considering Periodic Preventive Maintenance

被引：65
作者：
Wang, Biyang [1 ,2 ]
Wang, Xifan [1 ,2 ]
Bie, Zhaohong [1 ,2 ]
Judge, Paul D. [3 ]
Wang, Xiuli [1 ,2 ]
Green, T. C. [3 ]
机构：
[1] Xi An Jiao Tong Univ, Dept Elect Engn, Xian 710049, Peoples R China
[2] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China
[3] Imperial Coll London, Dept Elect & Elect Engn, London SW7 2AZ, England
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 2017年 / 32卷 / 03期
基金：
英国工程与自然科学研究理事会; 中国国家自然科学基金;
关键词：
HVDC; maintenance; MMC; reliability; MODULAR MULTILEVEL CONVERTER; DC CAPACITOR VOLTAGE;
D O I：
10.1109/TPWRD.2016.2602888
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Periodic preventive maintenance (PPM) is a significant measure to ensure reliable operation of the modular multilevel converter (MMC), but to date has always been neglected in the reliability evaluation. A mathematical reliability model of MMC considering PPM is proposed in this paper. The model is derived rigorously by the reliability function and finally described by the indices equivalent failure rate and the forced outage rate. Two operation modes related to redundant submodules are considered and described by the standby model and k-out-of-n model, respectively. Employing this model, we can analyze the sensitivity of reliability to redundancy and maintenance interval and provide some reliability indices for planning, which is especially valuable for the offshore cases. The necessity of the considered PPM and the effectiveness of the proposed model are verified by case studies. A method to include PPM in reliability modeling is provided.
引用
收藏
页码：1535 / 1544
页数：10
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