摘要
无刷双馈电机采用传统非线性比例积分微分控制器控制时,其速度和负载转矩动态响应性能不佳,自抗扰控制策略可加以改善。基于此,根据无刷双馈电机同步速旋转坐标系下的电压、磁链和转矩方程,采用模型参考自适应方法观测转子磁链在控制绕组中的分量;设计4个自抗扰控制器分别控制无刷双馈电机的控制绕组磁链、转速和定子电流,应用扩张状态观测器估算出系统的状态变量及其广义导数,实现电机的精确解耦。在MATLAB/Simulink环境下建立系统仿真模型并进行仿真分析,仿真结果表明,自抗扰控制策略可快速跟踪给定转速,受系统参数变化的影响较小,提高了系统的稳定性和鲁棒性。
When using traditional non-linear PID controller for brushless doubly-fed machine,its speed and dynamic response of load torque is not good enough and active disturbance rejection control strategy may be improved.On the basis of the a-bove problems and according to voltage,linkage and torque equation,model reference adaptive system was used to observe components of rotor linkage in control winding.Four adaptive disturbance rejection controller was designed to respectively control winding linkage,rotate speed and stator current of the brushless doubly-fed machine.In addition,extended state ob-server was used to estimate state variables of the system and its generalized derivatives for realizing precise coupling of the machine.Under Matlab/Simulink environment,simulation system of the system was established for simulation analysis and the result showed active disturbance rejection strategy was able to rapidly trace given rotate speed and may be affected little by parameter changes of the system which was able to improve stability and robustness of the system.
出处
《广东电力》
2014年第7期49-54,共6页
Guangdong Electric Power
基金
国家自然科学基金资助项目(51307025
513770265
5177050)
广东省高等学校科技创新项目(2013KJCX0059)
广东省自然科学基金资助项目(S2012040007895)
广东高校优秀青年创新人才培养计划项目资助(2012LYM-0052)
关键词
无刷双馈电机
自抗扰控制
扩张状态观测器
动态响应
鲁棒性
brushless doubly-fed machine
active disturbance rejection control
extended state observer
dynamic response
robustness
