摘要
本文对主流并网双馈风力发电系统的稳定性进行了研究。利用两相同步速旋转坐标轴系下DFIG风力发电系统数学模型在其稳态工作点处线性化得到DFIG风力发电系统的小信号模型。主要观测与系统机械振荡相关的物理量,以此评断系统稳定特性。利用MATLABSimulink建立仿真模型,通过研究并网DFIG风力发电系统的小信号稳定性,可为相关控制策略的提供理论依据,进一步提高风力发电系统及并联电网的稳定性。
The stability of mainstream grid-connected doubly-fed wind power generation system is studied in this paper. Firstly, the small signal model of DFIG wind power generation system is obtained by linearizing the mathematical model of DFIG wind power generation system in two-phase synchronous rotating coordinate system at its steady working point. The main objective of this paper is to observe the physical quantities related to the mechanical oscillation of the system and to judge the stability characteristics of the system. The simulation model is established by using MATLAB Simulink. By studying the small signal stability of grid-connected DFIG wind power generation system, it can provide theoretical basis for relevant control strategies and further improve the stability of wind power generation system and parallel power grid.
作者
朱国平
匡洪海
张瀚超
王建辉
Zhu Guoping;Kuang Honghai;Zhang Hanchao;Wang Jianhui(School of electrical and information engineering, Hunan University of Technology,Zhuzhou Hunan,412000)
出处
《电子测试》
2019年第7期40-42,共3页
Electronic Test
关键词
风力发电
双馈感应发电机
稳定性
小信号分析
wind power generation
doubly fed induction generator
stability
small signal analysis
