【摘要】 提出了一种新的异步电机非线性控制策略。首先根据给定的速度和磁链幅值,应用系统无源化控制(PBC)方法获得电流的参考值,以达到跟踪转速和磁链的目的;然后应用自抗扰控制器(ADRC)设计电流控制器得到最终所需的输入电压,使电机的电流收敛于参考值。仿真试验验证了该控制策略优良的调速性能,对电阻的变化具有较强的鲁棒性。更多还原

【Abstract】 A new nonlinear control strategy for asynchronous motor was proposed. According to the given speed and flux value, the current reference was obtained by passivity-based control (PBC) to achieve speed and flux tracking objective. Then the current controller was designed using active disturbance rejection controller (ADRC). The motor current was driven to its reference value by ADRC. Simulation results showed that the scheme gives perfect speed control performance with enhanced robustness.更多还原