摘要
近年来,越来越多的风电场接入电网,由于风电本身的随机性和不可预测性给电网的稳定性带来了极大的挑战。为了研究由于风速的不确定性,风电场并网和切机对电网的静态电压稳定性的影响,基于DIGSILENT/Power Factory(DPF)仿真软件,搭建仿真系统模型,研究分析了风电场接入系统后对电网静态电压稳定性的影响。在此基础上对比分析加装静止无功补偿器(SVC)和并联电容器前后对电压的静态稳定欲度的影响。仿真曲线分析表明,风电场容量越大,其接入和退出时对系统影响也越大;加入无功补偿装置后能够有效地增大电压静态稳定欲度,提高风电并网的接入容量和风电的极限穿透功率。
In recent years, more and more wind farms were accessed to power grid. Due to the randomness and unpredictability of the wind power, a great of challenges are brought to the stability of power grid. In order to study the influence of uncertainty of the wind speed, wind power accessing and cutting machine on static voltage stability of power grid, based on DIGSILENT/Power Factory（DPF） simulation software, the simulation system model was built,and the impacts of grid-access wind farm on the static voltage stability of the grid were analyzed. On this basis, the static stability margins of respectively adding the static var compensator（SVC） and shunt capacitor were compared.According to the analysis of the curve simulation shows that the greater the capacity of the wind farm, the greater its impacts of access and exit on system; adding the reactive power compensation device can effectively increase the voltage static stability, improve wind power grid access capacity and wind power limit penetration power.
出处
《电源技术》
CAS
CSCD
北大核心
2015年第2期327-330,共4页
Chinese Journal of Power Sources
基金
国家自然科学基金资助项目(51267020)
科技部国家国际科技合作专项资助(2013DFG61520)
教育部高等学校博士学科点专项科研基金博导类资助课题(20126501110003)
