新型同相供电系统的仿真研究  

Simulation Study on New Co-Phase Traction Power Supply System

作　　者：左晓薇[1] 王庆贤[1] 马泳娟[1] 

机构地区：[1]兰州交通大学自动化与电气工程学院,甘肃兰州730070

出　　处：《计算机仿真》2013年第3期152-156,共5页Computer Simulation

摘　　要：关于电力系统三相平衡优化问题,同相供电技术能解决三相负载不平衡问题,取消电分相环节,有利于未来重载、高速铁路的发展。将YN,d11变压器和综合潮流控制器结合,构建新型的同相供电系统。根据有功电分离法实时检测谐波及综合补偿电流,采用滞环比较电流控制方法,控制综合潮流控制器消除系统三相不平衡,滤除无功、谐波电流。在MATLAB环境下建立新型同相供电系统,通过仿真证实构建的系统结构、补偿电流方法和电流控制方法是正确的,能实现同相供电,方案可行。Co-phase power supply system can solve the three-phase load power imbalance and cancel neutral sec- tion insulator, which is helpful for the development of high-speed heavy railway. New co-phase power supply system was designed by combining YN, dl 1 transformer and the integrated power flow controller. Harmonic and instructions of compensation for the current can be detected in real time with active current separation method, and using hystere- sis comparison current control method can eliminate the three-phase imbalance and filter the reactive, harmonics cur- rents. Under MATLAB/simulink environment the new co-phase power supply system was created, and the simulation results prove that the system structure, the compensation current method and the current control method are correc- ted, which can achieve the co-phase power supply, ant this scheme is feasible.

关 键 词：同相供电系统 综合潮流控制器 有功电流分离法 滞环比较电流控制法 

分 类 号：TM743[电气工程—电力系统及自动化]