基于Hamilton模型的永磁同步风力发电系统中混沌运动的H_∞控制

任丽娜; 刘福才; 焦晓红; 李俊义

燕山大学西校区工业计算机控制工程河北省重点实验室,秦皇岛,066004

Hamiltonian model-based H_∞ control of chaos in permanent magnet synchronous generators for wind power systems

摘要: 针对永磁同步风力发电系统的混沌运动现象,提出了基于系统Hamilton模型的H_∞控制方案,使得系统脱离混沌,运行稳定.首先将永磁同步风力发电系统模型经过一系列状态变换,转化为类Lorenz经典数学模型,并验证了系统在一定参数区域内存在混沌现象.随后基于Hamilton系统充分利用系统物理结构和无需补偿＂无功力＂的优点,建立了混沌系统的Hamilton模型,并考虑了系统存在外扰情况下的H_∞控制方法.本文所设计的控制器不仅简单易实现而且反映了系统内部结构以及动态特性的信息.仿真实验证明了控制器的有效性.

关键词:

Abstract: Aiming at chaos in the wind turbine systems,the H∞control strategy is presented based on the Hamiltonian model,which makes systems disengage chaos and operate stably.Firstly,the permanent magnet synchronous generator of wind power system is transformed into a model which is similar to a Lorenz-like classical mathematic model through a series of transforms,and demonstrates existing chaos phenomena when its parameter values are in a certain range.Then,the Hamiltonian model of chaos system is established by taking full advantage of the physics structure of wind power system without the compensation of workless forces.Moreover,an H∞controller is investigated under the external disturbance.This controller is not only simple but also can reflect the interior structure and dynamic characteristics of system.The proposed strategy proves to be valid by simulations.

基于Hamilton模型的永磁同步风力发电系统中混沌运动的H_∞控制

燕山大学西校区工业计算机控制工程河北省重点实验室,秦皇岛,066004

关键词:

Hamiltonian model-based H_∞ control of chaos in permanent magnet synchronous generators for wind power systems

燕山大学西校区工业计算机控制工程河北省重点实验室,秦皇岛,066004

Keywords:

全文HTML

参考文献 (0)