一种采用LC耦合的电气化铁道功率调节系统  

An LC-Coupled Electric Railway Static Power Conditioning System

作　　者：胡斯佳 张志文[1] 李勇[1] 罗隆福[1] 罗培[1] 

机构地区：[1]湖南大学电气与信息工程学院,长沙410082

出　　处：《电工技术学报》2016年第8期199-211,共13页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51477046;51377001);国家科技支撑计划(2013BAA01B01);湖南省战略性新兴产业科技攻关项目(2014GK1037);国家电网公司项目(5216A014007V)资助

摘　　要：针对电气化铁道异相供电系统中牵引网过分相及电能质量问题,采用铁路功率调节器(RPC)的单相供电方式是一种可行方案。然而,RPC较大的补偿容量使得该套系统有源部分成本高。为提高该方案的性价比和可靠性,提出一种适用于单相牵引供电系统的LC耦合型铁路功率调节器(LC-RPC)。在对LC-RPC端口特性进行分析的基础上,提出一种适用于电气化铁道随机波动负荷条件下LC耦合支路电抗的最小运行电压设计。与传统RPC系统进行了详细容量对比分析,结果表明LC-RPC具有显著节容优势。结合某牵引变电所的实测数据给出了系统的参数设计实例。最后,仿真和实验结果验证了LC-RPC补偿效果和节容能力的有效性。To improve power quality and overcome excessive neutral sections in traditional two-phase traction supply system, single-phase traction supply system adopting railway static power conditioner（RPC） is a feasible solution. However, relatively high power capacity limits its large scale industrial application. To enhance the cost-efficiency and reliability of the compensation system, a LC-coupled RPC（LC-RPC） is proposed in this paper. Based on the operating properties of LC-RPC, a minimum operating voltage design for LC-coupling branch is proposed, which is suitable for the fluctuating railway load. And then, a detailed capacity comparison between LC-RPC and RPC is discussed as well. The results indicate that the LC-RPC is better to decrease capability than RPC. Finally, based on the measured data of a traction substation, the effectiveness of LC-RPC and its ability of capacity decreasing have been verified.

关 键 词：LC耦合 铁路功率调节器 参数设计 容量分析 电能质量 

分 类 号：TM76[电气工程—电力系统及自动化]