双馈风力发电系统功率控制的相关问题研究

针对目前在风电系统最大风能捕获控制策略中应用较为广泛的功率控制方法,本文首先分析了当前此法中有关反馈量的选取所存在的误区,并通过仿真验证了理论分析结果。在此基础上,结合双馈风电系统的慢动态模型,通过对其功率控制的稳定性分析,给出了系统的闭环稳定性条件,结果表明,闭环系统的稳定性取决于控制器的参数以及系统的工作点。

Study on the Power Control of Doubly Fed Induction Generator-Based Wind Power System

For the conventional power control strategy used in wind power system for maximum power point tracking(MPPT),this paper firstly points out the existing problem in selecting the feedback signal,and then verifies the analysis results by MATLAB/Simulink simulations.Based on the analysis result and using the slow dynamic model,the stability analysis for power control of doubly fed induction generator(DFIG) based wind power system is performed.Finally,the closedloop stability condition of the system is presented...