选取STATCOM最佳安装位置改善风电并网系统电压稳定性的研究  

Study on Improving Voltage Stability of Wind Farm Incorporated System in Terms of Optimal Placement of STATCOM

作　　者：李国庆[1] 赵萌姣 

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012

出　　处：《东北电力大学学报》2015年第1期46-51,共6页Journal of Northeast Electric Power University

基　　金：吉林省科技发展计划(20130206038GX);国家电网公司科技项目(2012515)

摘　　要：在风电并网系统中加装STATCOM,可有效改善风电对系统的电压稳定性造成的负面影响。从风速变化对风电系统造成的电压波动出发,综合考虑了风电并网后的有功出力和无功需求,研究出一种适用于风电接入地区的无功补偿点选择的方法,确定了STATCOM的最佳安装位置。并以风电接入IEEE9系统为例,利用该方法确定了STATCOM在该系统的安装位置,研究STATCOM对风电并网系统静态电压稳定性的改善作用。仿真结果表明,STATCOM装置能够有效的提高风电并网系统的静态电压稳定性和暂态电压稳定性。Application of STATCOM in wind farm incorporated system,can effectively reduce the negative im-pact the voltage stability of power system,which is caused by wind power. This paper starts from the fluctuation of the voltage system,which is caused by the wind speed changein wind farm,after wind farm connecting the system,considering the active power and reactive power demand,studies a method which is suitable for selec-ting reactive power compensation point of wind power field,determines the optimal location of STATCOM. Tak-ing wind farm as an example which is combined with the IEEE 9 bus system,the method is used to determine the placement of STATCOM in this system,studies the static voltage stability improvement of wind power incor-porated system. The results of simulation shows that STATCOM can effectively improve the static voltage stabil-ity and transient voltage stability of the wind farm incorporated system.

关 键 词：风电并网 STATCOM 无功补偿 无功裕度 电压稳定性 

分 类 号：TM715[电气工程—电力系统及自动化]