基于改进前馈统一潮流控制器功率协调控制

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英文篇名：Improved feed forward power coordinate control strategy for unified power flow controller 作者：许云飞 ; 张海宁 ; 钟诚 ; 李颖超 ; 刘红杨 英文作者：Xu Yunfei;Zhang Haining;Zhong Cheng;Li Yingchao;Liu Hongyang;State Grid Economic Research Institute of East Inner Mongolia Electric Power Company Limited;College of Electrical Engineering,Northeast Electric Power University; 关键词：交流柔性输电系统 ; 统一潮流控制器 ; 协调控制 ; 改进前馈 ; 过电压 英文关键词：flexible AC transmission systems;;unified power flow controller;;coordinate control;;improved feed forward;;over voltage 中文刊名：DZJY 英文刊名：Application of Electronic Technique 机构：国家电网蒙古东部电力有限公司经济技术研究院;东北电力大学电气工程学院; 出版日期：2019-02-06 出版单位：电子技术应用 年：2019 期：v.45;No.488 基金：国家重点研发计划项目(2016YFB0900601);; 国家电网公司科技项目(经研计2017(39));; 吉林省教育厅科技项目(JJKH20180444KJ) 语种：中文; 页：DZJY201902011 页数：5 CN：02 ISSN：11-2305/TN 分类号：46-50

摘要

统一潮流控制器(Unified power flow Controller,UPFC)是目前最先进的柔性交流输电系统技术。分析UPFC工作在潮流控制时的有功/无功功率平衡,提出一种改进实时功率协调控制方法,通过在UPFC并联侧变流器的有功、无功控制环路中增加改进实时前馈电流,减小动态过程中不平衡功率引起的过电压。基于RT-LAB的硬件在环仿真结果表明,相比现有常规协调控制方法,所提方法减小了潮流控制和系统故障时送端电压和直流电容电压的过电压,提高了系统故障后恢复速度。
        Unified power flow controller(UPFC) is the most advance flexible ac transmission system(FACTS). Active/reactive power bal-ance for UPFC is analyzed in this paper when it is working in power flow control mode, and an improved real time power coordi-nate control strategy is proposed in paper. In the parallel converter control loops, an improved real-time dynamic feed forward method is added to reduce over voltage caused by imbalance power. The results of hardware-in-loop simulation based RT-LAB platform show that this new coordinate control strategy,comparing with the conventional one, can decrease excessive voltage excursions of the send terminal ac voltage and DC-link voltage and improve the control performance during power flow changing or system occurring fault.

引文

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