组合式虚拟同相柔性供电装置的直接功率控制  

Direct Power Control of Combined Virtual Co-phase Power Supply System

作　　者：杨皓 熊成林[1] 吴瑕杰[1] 黄路 雷海 宋智威 YANG Hao;XIONG Chenglin;WU Xiajie;HUANG Lu;LEI Hai;SONG Zhiwei(School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,Sichuan Province,China)

机构地区：[1]西南交通大学电气工程学院,四川省成都市610031

出　　处：《电网技术》2019年第4期1196-1201,共6页Power System Technology

基　　金：国家重点研发计划资助项目(2017YFB1200801-05);教育部中央高校基本科研业务费专项资金资助项目(2682017CX045)~~

摘　　要：虚拟同相柔性供电装置能够避免列车通过电分相时引发的速度损失以及因动态过程而产生的电压和电流冲击等暂态过程,因此具有重要的工程应用价值。以国家十三五重点研发计划—轨道交通高能效牵引供电与传动关键技术项目拟采用的组合式虚拟同相柔性供电装置为研究对象,分析该组合装置供电的中性段与牵引供电臂进行功率柔性切换的基本原理,建立数学模型,基于传统直接功率控制算法,提出一种适用于该组合装置的直接功率控制算法。该算法能够实现对组合式虚拟同相柔性供电装置的功率控制,实现负载功率在中性段与牵引供电臂之间的柔性切换,避免车网分离时拉弧现象的产生。Matlab/Simulink仿真结果验证了此控制算法的有效性和可行性。Virtual co-phase traction power supply system has important engineering application value because it can eliminate voltage/current shock and locomotive speed loss when it crosses neutral section. Taking the key national project of the 13 th Five-Year Plan-Combined Virtual In-phase Flexible Power Supply Equipment to be adopted in the Key Technology Project of High-efficiency Traction Power Supply and Transmission for Rail Transit as research object, the working principle of composite set of devices is analyzed.Based on direct power control theory, a direct power control algorithm for the composite set is proposed. The power control of the composite set can be achieved with this algorithm, and generation of electric arcs is avoided because flexible switching of locomotive power is realized between neutral section and traction power supply ratio. Matlab/Simlink simulation results verify correctness and effectiveness of this control mode.

关 键 词：电分相 地面过电分相 功率控制 

分 类 号：TM721[电气工程—电力系统及自动化]