含双馈风机接入的电力系统送端稳定性分析  

Analysis on stability characteristics of power system with doubly fed induction generators access

作　　者：孙黎[1] 林继巍 王曦 于汉清 刘庸 SUN Li;LIN Jiwei;WANG Xi;YU Hanqing;LIU Yong(State Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology,Ministry of Education(School of Electrical Engineering,Northeast Electric Power University),Jilin 132012,China;Electric Power Research Institute of Sichuan Power Company of State Grid Corporation of China,Chengdu 610000,China)

机构地区：[1]现代电力系统仿真控制与绿色电能新技术教育部重点实验室(东北电力大学电气工程学院),吉林吉林132012 [2]国网四川省电力公司电力科学研究院,四川成都610000

出　　处：《电气应用》2023年第11期34-42,I0008,共10页Electrotechnical Application

基　　金：国家电网有限公司总部管理科技项目资助(5100-202226021A-1-1-ZN)。

摘　　要：近年来,大规模新能源集中接入电网,对送端电力系统稳定性产生重要影响。针对含双馈风电机组接入的送端电力系统功角稳定问题展开研究,通过搭建两区仿真系统建立数学模型,基于风电机组的等效外特性和等面积定则确定双馈风电机组并网对系统暂态功角稳定性分析的理论方法,并从风电渗透率及风机接入位置两个方面剖析了影响功角稳定性的因素。最后,以极限切除时间和极限切除角为评价指标,通过仿真算例验证了理论分析的准确性。In recent years,large-scale new energy is intensively connected to the power grid,which has an important impact on the stability of the transmission power system.The power angle stability of the transmission power system with doubly-fed wind turbine access is studied.By building a two-zone simulation system and establishing a mathematical model,the theoretical method for analyzing the transient power angle stability of the grid-connected system of doubly-fed wind turbine is determined based on the equivalent external characteristics and the equal area rule of the wind turbine.The factors affecting the stability of power angle are analyzed from two aspects of wind power permeability and fan access position.Finally,the accuracy of the theoretical analysis is verified by a simulation example with the limit excision time and limit excision angle as evaluation indexes.

关 键 词：风电 功角稳定 渗透率 接入位置 等效外特性 

分 类 号：TM614[电气工程—电力系统及自动化] TM712