风电并网容量与消纳模式对互联电网小干扰稳定性的影响

摘要

针对风电并网容量与消纳模式对互联电网小干扰稳定性的影响问题，基于完整的双馈风力发电机组模型，采用特征根分析和时域仿真分析方法，以两区域4机系统为例，分析了不同风机出力、不同消纳模式下系统振荡模式和动态响应曲线。结果表明，风电机组并网能够增强互联电力系统的阻尼比，风电机组处于本地消纳模式时有利于减小区域间的低频振荡。%Aiming at the impacts of wind power integration capacity and accommodation on small signal stabili-ty of interconnected power systems,based on the comprehensive model of the doubly fed induction generator (DFIG),detailed analysis of different wind turbine output and accommodation,the system oscillation mode and dynamic response curve under accomodation mode were carried out on a two-area four generators system by u-sing the eigenvalue analysis and dynamic time-domain simulation.Results showed that wind turbine generator accomodation could increase the damping of interconnected power system and decrease low frequency oscilla-tion in mode of accomodation on distance.