储能变流器用新型电流跟踪控制方法研究  

Research on a New Current Tracking Control Method for Power Control System

作　　者：蔚泉清 田刚领 张柳丽 牛哲荟 YU Quan-qing;TIAN Gang-ling;ZHANG Liu-li;NIU Zhe-hui(Ping Gao Group Co.,Ltd.,Pingdingshan 467001,China)

机构地区：[1]平高集团有限公司

出　　处：《电力电子技术》2019年第11期27-29,共3页Power Electronics

基　　金：国家重点研发项目(2018YFB090500)~~

摘　　要：针对并网大功率储能变流器(PCS),提出一种新型电流跟踪控制方法。该方法能够在保证变流器开关频率恒定的前提下实现并网电流与指令电流零误差跟踪。该方法控制电路结构简单,算法容易实现,能够实现大功率PCS控制的全数字化,提高大功率PCS的稳定性、可靠性和可维护性。这里介绍了该控制策略的原理和实现方法,在PSCAD仿真平台上搭建了仿真模型,对该控制方法进行了仿真研究,最后搭建直流母线500 V的低压实验平台进行了该方法的实验研究,结果验证了理论分析的正确性和该算法的可行性。A new current tracking control method for grid-connected high power control system(PCS) is presented.This method can realize zero error tracking of grid-connected current and command current on the premise that the switching frequency of converter is constant.The control circuit of this method is simple and the algorithm is easy to realize.It can realize the full digitization of the control of high PCS and improve the stability,reliability and maintainability of high PCS.The principle and implementation method of the control strategy is introduced,a simulation model on the PSCAD simulation platform is built,carries out simulation research on the control method,and finally builds a low-voltage test platform for 500 V DC bus.The experimental results verify the correctness of the theoretical analysis and the feasibility of the algorithm.

关 键 词：储能变流器 电流跟踪控制 指令电流 

分 类 号：TM46[电气工程—电器]