PSAT应用于风电系统暂态稳定性研究  

Research on Transient Stability for Wind Power System Based on PSAT

作　　者：辛文成 姚森敬 陈浩敏 于力 席禹 XIN Wencheng;YAO Senjing;CHEN Haomin;YU Li;XI Yu(Digital Grid Research Institute,China Southern Power Grid,Guangzhou 510663,China)

机构地区：[1]南方电网数字电网研究院有限公司,广州510663

出　　处：《南方能源建设》2020年第4期41-47,共7页Southern Energy Construction

基　　金：南网数研院科技项目“智能电网重大关键技术研究与集成示范”(SYYKJXM20200005)。

摘　　要：[目的]为了研究各风电系统的暂态稳定特性及各风电机组的低电压穿越能力,同时讨论无功补偿容量的加入对各风电系统稳定性的影响。[方法]在PSAT平台上建立了风速、换流器和风力发电机的数学模型,并利用三机九节点包含风力机组的电力系统网络模型,在三相短路故障情况下用时域仿真法对这个网络进行了仿真。[结果]获得了直驱风电系统、双馈风电系统、恒速恒频风电系统在不同母线短路故障持续时间下的电压曲线或功角曲线。[结论]得出了不同机组类型,不同扰动类型,以及不同持续时间下,各风电系统稳定性不同的结论。[Introduction]The paper aims to study the transient stability of the wind power system and that how the injection of reactive power to the wind power system affects the stability.[Method]So we established the mathematic model of the wind power generator,the frequency converter,and a three-machine-nine-node power system model was constructed based on PSAT.We realized the the time simulation in condition of the three phase fault.[Result]Then we get the voltage and power angel figure of direct drive wind power system,double-fed wind power system and constant speed wind power system under different bus short circuit fault time.[Conclusion]It demonstrates that the wind power system has different stability based on different wind power generator,disturbance and duration.

关 键 词：电力系统仿真软件包 风力发电系统 暂态稳定性 低电压穿越 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程] TM712[电气工程—电力系统及自动化]