摘要
提出了STATCOM装置的k/n(G)可靠性模型及其基本分析方法。利用k/n(G)可靠性模型定量描述了主电路拓扑结构的多重化冗余设计所取得的可靠性效益。采用文献提供的IGCT、GTO和IGBT器件可靠性参数,定量计算了某实际应用的50MVA STATCOM装置可靠性指标,并对STATCOM装置结构的优化设计进行了分析;探讨了考虑元件故障率变化的STATCOM动态k/n(G)可靠性模型的基本分析方法。
The reliability level of STATCOM devices is an key issue concerned by all of designers, manufacturers and operators. An k-out-of-n： G system model of STATCOM and the basic analysis method for it are proposed in this paper. The k-out-of-n： G system can be used to quantify the reliability benefit of redundancy units in main circuit of STATCOM. Utilizing the basic relability indices of IGCT, GTO and IGBT provided by literatures, the reliability value and MTTF of an practical 50 MVA STATCOM device are evaluated. And the optimal amount of redundant units is analyzed basing on the indices obtained in forenamed study. Finally the dynamic model is proposed to evaluate the reliability of the k-out-of-n： G system when component failure induces higher failure rates in survivors.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2007年第13期12-17,共6页
Proceedings of the CSEE
基金
国家重点基础研究发展规划973项目(2004CB217907)。~~
关键词
静止同步补偿器
装置可靠性
K/N(G)系统
独立同分布元件
优化可靠性设计
static synchronous compensator
devicereliability
k-out-of-n： G system
independent and identicallydistributed component
optimal reliability design
