基于Hamilton系统的风力发电双PWM变流器控制研究  

Research on double-PWM converter control of wind energy based on Hamilton system

作　　者：吴忠强[1] 马宝明[1] 孔启翔[1] 

机构地区：[1]燕山大学工业计算机控制工程河北省重点实验室,河北秦皇岛066004

出　　处：《电力系统保护与控制》2012年第17期19-23,29,共6页Power System Protection and Control

基　　金：河北省自然科学基金(F2012203088)~~

摘　　要：针对双馈风力发电机并网控制中转子侧功率的双向传输问题,采用三相电压型双PWM变流器通过调节占空比来实现电流控制。基于哈密顿(Hamilton)系统理论,设计耗散反馈Hamilton控制器来实现稳定控制。考虑到系统存在不确定性和外部干扰,设计模糊自适应干扰抑制器来提高系统的鲁棒性。仿真表明:采用耗散反馈Hamilton控制器和模糊自适应干扰抑制器的双PWM变流器,能够使变流器输出期望值,并且有效抑制不确定外部干扰,可以满足双馈风力发电机并网控制的要求。Aiming at the problem on grid-connected control of double-fed wind power generator in which rotor-side power is transmitted to double-side, the three-phase voltage source dual-PWM converter is used to achieve current control by adjusting duty ratio. Dissipative feedback controller is designed to get stable control based on Hamilton system theory. Considering the uncertainties of the system and external interference, fuzzy adaptive interference suppressor is designed to improve robustness of system. Simulation shows that using dissipative feedback Hamilton controller and fuzzy adaptive interference suppressor, the output expected of dual-PWM converter can be achieved, the uncertainty and external interference can be restrained effectively, and the requirement of grid-connected control of double-fed wind power generator can be realized.

关 键 词：双PWM 哈密顿系统 耗散反馈 模糊自适应 

分 类 号：TM46[电气工程—电器] TM614