基于自适应虚拟阻抗的储能电站多机并联黑启动控制策略  

Multi machine parallel black start control strategy for energy storage power plants based on adaptive virtual impedance

作　　者：谢冰 孙广宇 杨斌 刘志力 王晓东[2] 刘颖明[2] Xie Bing;Sun Guangyu;Yang Bin;Liu Zhili;Wang Xiaodong;Liu Yingming(Electric Power Research Institute of State Grid Liaoning Electric Power Co.,Ltd.,Shenyang 110006,China;School of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]国网辽宁省电力有限公司电力科学研究院,辽宁沈阳110006 [2]沈阳工业大学电气工程学院,辽宁沈阳110870

出　　处：《可再生能源》2025年第2期243-251,共9页Renewable Energy Resources

基　　金：国网辽宁省电力有限公司科技技术项目(2023YF-87)。

摘　　要：在输电线路中,受线路阻抗影响,储能电站系统难以按照容量合理分配储能电站系统功率。为了更好地促进黑启动的稳定运行,文章提出了一种基于改进虚拟同步控制(Virtual Synchronous Generator,VSG)的储能电站电池发电功率分配方案。该方案首先引入虚拟阻抗,消除了由线路阻抗引发的母线电压波动,以提高储能电站系统功率分配精准度;然后,针对储能电站内多储能单元并联时,由于线路阻抗的影响造成各储能单元功率分配不均问题,分析了多个储能装置并联时的功率传输和环流特性,使得黑启动系统不断完善;最后,通过Matlab/Simulink实验平台和半仿真实验平台进行实验分析,验证所提策略的有效性,能够提高系统运行稳定性及经济性。In transmission lines,due to the influence of line impedance,it is difficult for energy storage power station systems to allocate power reasonably according to capacity.In order to better promote the stable operation of black start,this article proposes a battery power distribution scheme for energy storage power plants based on improved Virtual Synchronous Generator(VSG).This scheme first introduces virtual impedance to eliminate bus voltage fluctuations caused by line impedance,in order to improve the accuracy of power allocation in energy storage power station systems;Then,in response to the problem of uneven power distribution among multiple energy storage units in parallel in an energy storage power station due to the influence of line impedance,the power transmission and circulating characteristics of multiple energy storage devices in parallel were analyzed to continuously improve the black start system.Finally,experimental analysis was conducted using Matlab/Simulink and semi simulation platforms to verify the effectiveness of the proposed strategy,which can improve the stability and economy of system operation.

关 键 词：储能电站 VSG控制 虚拟阻抗 功率分配 黑启动 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程] TM615[电气工程—电力系统及自动化]