摘要
针对微网中的虚拟同步发电机(VSG)技术,首先提出了适用于孤岛微电网的VSG控制策略,并对其进行了详细的分析和介绍;其次,针对不同容量VSG并联,考虑并联系统投切负载时系统动态特性,提出了一种基于惯性时间常数匹配和阻抗匹配的参数设计方法,使得VSG并联系统在投切负载过程中有功和无功功率具有良好的动态特性;最后,Matlab/Simulink仿真结果和小功率实验结果验证了所提控制策略和参数设计方法是正确有效的。
Aiming at the technology of virtual synchronous generator(VSG)in microgrid,the VSG control strategy suitable for island microgrid was put forward firstly,and its detailed analysis and introduction was made.Secondly,considering the dynamic characteristics of parallel system when switching on and off loads for different capacities of VSG in parallel,a parameter design method based on inertial time constant matching and impedance matching was proposed to make the active and reactive power of VSG parallel system have good dynamic characteristics in the process of switching load.Finally,Matlab/Simulink simulation results and low power experimental results verify the correctness and effectiveness of the control strategy and parameter design method proposed in this paper.
作者
施荣
王涛
李宁
陈宁
SHI Rong;WANG Tao;LI Ning;CHEN Ning(State Grid Shaanxi Electric Power Company Economic Research Institute,Xi'an 710065,Shaanxi,China;North China Electric Power Research Institute Co.,Ltd.,Xi'an Branch,Xi'an 710065,Shaanxi,China;School of Automation and Information Engineering,Xi’an University of Technology,Xi’an 710048,Shaanxi,China;China Electric Power Research Institute Nanjing Branch,Nanjing 210013,Jiangsu,China)
出处
《电气传动》
2021年第6期44-50,共7页
Electric Drive
基金
国家自然科学基金(51507140)
国家留学基金委国际清洁能源拔尖人才项目([2018]5046)
电气绝缘与电力设备国家重点实验室开放基金(EIPE 17209)
陕西省自然科学基础研究计划(2018JM5041)
广东省清洁能源技术重点实验室开放基金(2014 B030301022)
江苏省智能配电网协同创新中心开放基金(XTCX201703)。
关键词
微电网
虚拟同步机
不同容量
参数设计
microgrid
virtual synchronous generator(VSG)
different capacity
parameter design
