电网技术2017，Vol.41Issue(12)：4022-4029,8.DOI:10.13335/j.1000-3673.pst.2017.0383
同相供电系统潮流控制器可靠性建模与冗余分析
Reliability Modeling and Redundancy Analysis of Power Flow Controller in Co-Phase Power Supply System
摘要
Abstract
Reliability evaluation and redundancy design of power flow controller, as core component in co-phase power supply system of electrified railway, are crucial to its safe operation. In this paper, effect of traction load randomness and impact resistance on junction temperature fluctuation of power components is analyzed. Power dissipation and thermal network model is adopted to calculate junction temperature of power electronic components. Combined with Coffin-Manson component failure model, calculation method of power module failure rate of power flow controller is given. Based on special topology of co-phase power supply device, influence of power module cascade series on failure rate of the components under different operation modes is studied. A k/n(G) dynamic reliability assessment model is built and evaluation process of power flow controller is proposed. Taking 5 MVA prototype used in a traction substation of Central-South Shanxi railway as example, power module redundancy is analyzed and number of redundant modules is optimized, providing necessary basis for engineering design and operation & maintenance of co-phase power supply device.关键词
同相供电/潮流控制器/结温/k/n(G)动态模型/冗余分析Key words
co-phase power supply/power flow controller/junction temperature/k/n(G) dynamic reliability model/redundancy analysis分类
信息技术与安全科学引用本文复制引用
陈民武,宋雅琳,刘琛,解绍锋,朱远帆..同相供电系统潮流控制器可靠性建模与冗余分析[J].电网技术,2017,41(12):4022-4029,8.基金项目
国家自然科学基金资助项目(51307143) （51307143）
中央高校基本科研业务费专题研究项目(2682015ZD03).Project Supported by National Natural Science Foundation of China (51307143) （2682015ZD03）
Project Supported by the Fundamental Research Funds for the Central Universities (2682015ZD03). （2682015ZD03）
