摘要
建立了开关磁阻电机(SRM)的动态非线性数学模型,采用转速环和电流环双环控制方式对开关磁阻电机的转速进行控制。针对SRM非线性的特点设计了复合模糊控制器,实现对开关磁阻电机转速良好的控制。复合模糊控制由常规的比例积分(PI)控制器和模糊型的PI控制器组成。瞬态时采用模糊型的PI控制器以提高系统的响应速度,稳态时采用常规的PI控制器以减小系统的稳态误差。基于本文所建立的模型对一台四相8/6结构的开关磁阻电机进行了仿真。仿真结果表明本文所提出的SRM驱动系统中的复合模糊控制器具有快速跟踪能力,稳态误差较小并且有很强的鲁棒性。
A dynamic mathematical model of switched reluctance motor is built. Double control loop that consists of speed loop and current loop is used to control the speed of SRM. Because of SRM dynamical nonlinearities, a hybrid fuzzy controller is presented. The developed hybrid fuzzy control law consists of a proportional integral （PI） controller at steady state to reduce the steady error and a PI type fuzzy logic controller at transient state to improve the system response speed. A 4-phase 8/6 structure prototype SRM is simulated using the proposed model. The simulation results show that the presented hybrid controller for SRM drive has fast tracking capability, less steady state error and is robust to load disturbance.
出处
《农业装备与车辆工程》
2013年第2期37-39,49,共4页
Agricultural Equipment & Vehicle Engineering
关键词
开关磁阻电机
转速控制
复合模糊控制器
switched reluctance motor
speed control
hybrid fuzzy controller
