开关磁阻电机直接转矩模糊逻辑控制系统设计

本文提出了一个用于抑制转矩脉动的开关磁阻电动机直接转矩模糊逻辑控制系统模型 ,在系统的设计中同时采用了三种方法使转矩脉动最小化 :(1 )直接转矩线性控制 ,用以获得迅速的直接转矩响应 ;(2 )相电流调制优化算法 ,用以获得最佳的相电流波形 ,保证各相绕组瞬时转矩之和为一恒定值 ;(3 )模糊逻辑控制器 ,对各相电流进行进一步调制 ,用以获得转矩的动态稳定。同时文中还介绍了该智能控制器的设计方法 ,并通过数字仿真证实了该设计不仅有效地抑制了转矩的脉动 ,而且具有期望的瞬态响应特性

Design of Torque Ripple Minimization for Switched Reluctance Motor

The paper addresses a design for reducing torque ripple in switched reluctance motor (SRM) . In this design,there are three methods to be used to make torque ripple minimum. 1 ,A direct torque feedback lineariza- tion controller for the fast torque responses;2 ,An optimal algorithm for the phase current waveform to ensure that the sum of all phase torque is constant; 3 .A fuzzy logic controller for further modulating the phase current.Finally,it is shown by digital simulation that the method presented not only reduces the moment fluctuation significantly but also has expected characteristic of instan- taneous responses.