[1]纪斌,王立永.基于模块化多电平换流器的无功补偿控制策略研究[J].电力电容器与无功补偿,2020,41(5):46-53.[doi:10.14044/j.1674-1757.pcrpc.2020.05.009]
 JI Bin,WANG Liyong.Research on Reactive Power Compensation Control Strategy Based on Modular Multilevel Converter[J].Power Capacitors & Reactive Power Compensation,2020,41(5):46-53.[doi:10.14044/j.1674-1757.pcrpc.2020.05.009]
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基于模块化多电平换流器的无功补偿控制策略研究()
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《电力电容器与无功补偿》[ISSN:1674-1757/CN:61-1468/TM]

卷:
41卷
期数:
2020年第5期
页码:
46-53
栏目:
无功补偿与滤波
出版日期:
2020-10-30

文章信息/Info

Title:
Research on Reactive Power Compensation Control Strategy Based on Modular Multilevel Converter
作者:
纪斌王立永
国网北京市电力公司发展策划部,北京100031
Author(s):
JI BinWANG Liyong
Department of Development Planning,State Grid Beijing Electric Power Company, Beijing 100031,China
关键词:
模块化多电平换流器(MMC)无功补偿解耦控制反馈调节电压稳定定电压控制
Keywords:
modular multilevel converter(MMC)reactive power compensationdecoupling control feedback regulationvoltagestabilityconstantvoltagecontrol
DOI:
10.14044/j.1674-1757.pcrpc.2020.05.009
文献标志码:
A
摘要:
针对模块化多电平换流器在配电网无功补偿中的应用,文中研究了模块化多电平换流器 的无功补偿控制策略,实现了电网的无功补偿和电压平衡控制。基于MMC 的基本工作原理,建立 了MMC 的等效数学模型。提出电流内环和功率外环的无功补偿控制方法,以及电流内环有功与无 功解耦控制方法,实现了故障情况下的正序和负序分量解耦控制。功率外环在传统定电压PI 控制 的基础上,增加了电压反馈调节控制器并提出k 参数控制策略,进一步提高MMC 的线性工作区。 最后,利用Simulink 仿真的方式对文中所提出的控制策略进行仿真分析。结果表明,在电网对称运 行与不对称运行条件下,该策略均可实现对系统的无功补偿和电压稳定控制,且研究内容为实现模 块化多电平换流器在电力系统无功补偿方面的应用提供了参考。
Abstract:
Asfortheapplicationofcompensationmodularmulti?levelconverterinthereactivepowercompen? sationofdistributionnetwork,inthispaperthecontrolstrategyofreactivepowercompensationofmodularmulti ?level converter is studied and the reactive power compensation and voltage balance control of power grid are achieved. On the basis of basic working principle of MMC,the equivalent mathematical model is set up. The reactive power compensation control strategy of current inner loop and power outer loop as well as active and reactive decoupling control method of current inner loop are proposed so to achieve the decoupling control of positivesequenceandnegativesequencecomponentsincaseoffault.Basedonthetraditionalconstantvoltage PI control,a voltage feedback controller is added to the power outer loopand a k?parameter control strategy is proposed to further improve the linear working area of MMC. Finally,the control strategy proposed in this paper is simulated by Simulink. It is shown by the resultthat the control strategy,in case of symmetric and asymmetric operation mode of power network,can achieve reactive compensation and voltage stability control of the system. Moreover,the content of the study this paper provides reference for the application of modular multilevelconverterinreactivepowercompensationofpowersystem.

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备注/Memo

备注/Memo:
收稿日期:2020?02?14
基金项目:国家电网公司科技项目(52020418002D)。
作者简介: 纪斌(1977—),男,高级工程师,从事电力系统及其自动 化、输变电工程应用等工作。 王立永(1973—),男,高级工程师,从事电力系统规划、 计划分析,电力系统安全稳定分析,电力系统经济运营分析 等工作。
更新日期/Last Update: 2020-10-30