Improved Sliding Mode Control Strategy for Railway Static Power Conditioner in V/v Traction Power Supply System

被引：0
|
作者：
Yang P. [1 ]
Kang Y. [2 ]
Miao S. [2 ]
Zheng T. [1 ]
Wang J. [1 ]
Han J. [2 ]
机构：
[1] State Grid East Inner Mongolia Electric Power Company Limited Electric Power Research Institute, Hohhot
[2] State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan
来源：
Gaodianya Jishu/High Voltage Engineering | 2020年 / 46卷 / 06期
关键词：
Improved sliding mode control; Power quality; Railway static power conditioner; SS[!sub]6B[!/sub] electric locomotive; V/v traction power supply system;
D O I：
10.13336/j.1003-6520.hve.20200615044
中图分类号：
学科分类号：
摘要：
In view of the power quality problems such as negative sequence and harmonics in V/v traction power supply system, we put forward a control strategy of a railway static power conditioner compensating for reference current rapidly and accurately. The operation principle of SS6B electric locomotive is analyzed, and an equivalent simulation model which is suitable for power quality research is built. The generation mechanism of negative sequence and harmonic is revealed based on the V/v traction power supply system. The topology and compensation principle of the railway static power conditioner are analyzed, and the mathematical model for railway static power conditioner is established and the control equation of the compensation current is derived. Then the control strategy of railway static power conditioner based on improved sliding mode is proposed, which realizes the accurate tracking of the output current of static power conditioner and then improves the power quality of the V/v traction power supply system. The simulation model of SS6B electric locomotive is proved to be correct, and the proposed strategy is proved to be effective by the simulations in PSCAD/EMTDC. © 2020, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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页码：2218 / 2229
页数：11
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