并网运行的储能逆变器小信号稳定性分析Analysis on Stability of Small Signal for Grid-connected Energy Storage Inverter
周丹,赵波,张雪松,汪科
ZHOU Dan,ZHAO Bo,ZHANG Xuesong,WANG Ke
摘要(Abstract):
储能系统是目前平抑间歇式可再生能源功率波动的一种有效手段。推导了并网运行模式下储能逆变器的小信号数学模型,分析了主要控制参数对逆变器并联运行小信号稳定性的影响,并利用PSCAD搭建了并网运行的储能逆变器仿真模型,验证了逆变器控制参数对系统小信号稳定性的影响。
Energy storage system is an effective means for stabilizing power fluctuations of intermittent renewable energy. This article derives small signal mathematical model of energy storage inverter in grid-connected operation and analyzes the impact of main control parameters on small signal stability of inverter; furthermore,it uses PSCAD to build a simulation model of the operating grid-connected energy storage inverter, for the purposes of verifying the impact of inverter control parameter on small signal stability.
关键词(KeyWords):
储能系统;并联运行;小信号稳定性;控制参数
energy storage system;grid-connected operation;small signal stability;control parameter
基金项目(Foundation):
作者(Author):
周丹,赵波,张雪松,汪科
ZHOU Dan,ZHAO Bo,ZHANG Xuesong,WANG Ke
DOI: 10.19585/j.zjdl.2014.01.001