摘要
为了解决高速铁路牵引供电系统负序不平衡问题,本文提出了一种电气化铁路混合式电能质量补偿系统,该系统包括铁路功率调节器(RPC)和基于磁控电抗器(MCR)的静止无功补偿器(MSVC)。针对传统补偿方式下RPC需要较大补偿容量的问题,本文提出了RPC和MSVC协同补偿的补偿方案。分析了混合补偿系统在基波域和谐波域的电气模型,得出了负序补偿策略和谐波抑制策略,同时在国家标准的裕度下对安装容量进行了优化,进一步减小了安装容量。根据补偿原理提出了V/V牵引变下的负序和谐波补偿电流检测方法以及RPC和MSVC的控制策略,并分析了补偿装置投入使用后整个系统的谐振特性。最后,通过仿真分析表明了本文所提出理论的正确性和有效性。
To compensate negative sequence current in high-speed railway power supply system, a novel compensation strategy based on railway power conditioner（RPC） and magnetic controlled reactor（MCR） based magnetic static var compensator（MSVC） is proposed in this paper. As the traditional RPC compensation needs a big capacity, a combination of RPC and MSVC is put forward. The electrical models based on fundamental and harmonic domain are analyzed. Furthermore, this paper comes up with the principle of negative current compensation and harmonic current suppression. The optimum capacity is analyzed based on the margin of national standards. The control strategy is proposed and the resonant characteristic of the system is analyzed. The simulation results confirm the correctness of the proposed method.
出处
《电工技术学报》
EI
CSCD
北大核心
2013年第12期60-69,共10页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(50807041)
武汉市科技攻关计划(2013060501010164)
武汉市青年科技晨光计划(2013070104010010)资助项目
