【摘要】 基于能量耗散理论和开关磁阻电机原理,提出了一种开关磁阻直线电机(LSRM)的非线性控制器。因电气时间常数远小于机械时间常数,LSRM可视为两时间尺度系统,并可分解为反馈连接的电气和机械两个无源子系统。分别对两个子系统进行无源性控制器设计,因反馈连接的无源子系统仍然保证无源性,从而保证整个系统的全局稳定性,试验结果表明该方法具有优良的性能和鲁棒性,并易于实现。更多还原

【Abstract】 By using the energy dissipation theory and the property of the switched reluctance motor,this paper presents a nonlinear controller for the linear switched reluctance motors (LSRM). Based on the fact that the electrical time constant is much smaller than the mechanical time constant,the whole LSRM driving system is treated as a two-time-scale system and can be decomposed into two subsystems (electrical and mechanical) that are negative feedback interconnection. The controllers are designed for two subsystems respectively to ensure that they are passive. In view of the fact that the system made of two passive subsystem connected through negative feedback is still passive. Therefore,the stability of LSRM driving system is ensured in large scale. This control strategy possesses a simple structure and can be implemented easily. The experimental results show that the proposed control is effective and roboust for the position control of LSRM.更多还原