并网型异步风力发电机电力系统稳定器控制与仿真  

Power System Stabilizer Control and Simulation of Asynchronous Wind Generator Connected into Power Grid

作　　者：田中伟[1] 吴政球[1] 龚志敏[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《电机与控制应用》2013年第8期52-56,共5页Electric machines & control application

摘　　要：给出了异步风力发电机的数学模型,分析了异步风力发电机引入系统的振荡模式,在异步感应风力发电机的桨距角控制系统中引入电力系统稳定器(PSS)环节,来提高系统阻尼来加快平息振荡,对桨距角控制系统进行了相频特性分析,并用MATLAB对PSS参数进行了整定,用三种运行方式验证了参数整定的有效性和PSS抑制低频振荡的能力。仿真结果表明,整定后的PSS对低频振荡具有良好的抑制作用。A complete mathematical mode of asynchronous wind generator was given, and the oscillation mode which was introduced into the system by asynchronous wind generator was analyzed. On this basis, by means of leading power system stabilizer （PSS） to the pitch control system of asynchronous generator, the asynchronous generator could offer additional damping to quell the oscillation. The phase-frequency analysis was made in the pitch control system, and it used MATLAB to optimize the parameters of PSS. It verified the validity of the parameters and the ability of the power system stabilizer to suppress low-frequency oscillations in three modes. The simulation results illustrated that the PSS with the settings has good inhibitory action to low-frequency oscillations.

关 键 词：异步风力发电机 系统阻尼 相频特性 参数整定 电力系统稳定器 

分 类 号：TM301.2[电气工程—电机]