电工技术学报2017，Vol.32Issue(z1)：186-195,10.DOI:10.19595/j.cnki.1000-6753.tces.L70134
中压大容量三重化三电平直流变换器冗余容错控制
Redundant and Fault Tolerant Control of a Medium-Voltage High-Power Three-Phase Three-Level DC-DC Converter
摘要
Abstract
The three-phase three-level DC-DC converter is very suitable for high input voltage and high output current power conversion applications. Its characteristics of multi-module interleaved-parallel combination can significantly improve the reliability of the operation. To highlight the advantage, we should execute the redundancy and fault tolerance. This paper firstly analyzed the impact of the interleaved angle on the redundancy and fault tolerance, the best value of the interleaved angle was calculated. Then a novel method to achieve redundancy and fault tolerance was proposed based on the voltage-current double-closed-loop proportional-integral (PI) control plus regulating the interleaved angle. This method was implemented in a distributed control system based on ring net communication, which guaranteed the equality and current balance among all modules, and realized the redundant and fault tolerant operation of the converter. The proposed method is validated by experimental results of a MW-level prototype.关键词
三重化三电平直流变换器/冗余容错/交错角/分布式控制系统Key words
Three-phase three-level DC-DC converter/redundancy and fault tolerance/interleaved angle/distributed control system分类
信息技术与安全科学引用本文复制引用
杨国润,肖飞,范学鑫,王瑞田,刘计龙..中压大容量三重化三电平直流变换器冗余容错控制[J].电工技术学报,2017,32(z1):186-195,10.基金项目
国家重点基础研究发展计划(973计划)(2015CB251004)、国家自然科学基金(51477180,51477179)和新世纪优秀人才支持计划(NCET-11-0871)资助项目. （973计划）
