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Sensorless Field Oriented Control based on improved MRAS speed observer for Permanent Magnet Synchronous Motor drive

机译:基于改进的MRAS速度观测器的永磁同步电机驱动器无传感器磁场定向控制

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Sensorless speed control of Permanent Magnet Synchronous Motor (PMSM) is still in development to eliminate the existing drawbacks such as speed ripples, torque ripples and slow response. This paper proposes Field Oriented Control (FOC) based on improved Model Reference Adaptive System (MRAS) to control the motor speed and minimize both the speed and torque ripples for the PMSM. The improved MRAS strategy is used for speed estimation. A regulator is added to the proposed MRAS to reduce the torque and speed ripples. Feed forward signal from reference speed has used with the PMSM dynamic equations to enhance the overall performance of the system. Cascaded Multi-Level Inverter (MLI), with special switching strategy and different DC sources, is used as PMSM drive. The switching and design of the cascaded MLI are based on getting more voltage levels with less number of components. The system is simulated using Matlab / Simulink package. The proposed controller success in minimizing the speed and torque ripples and provide faster system response. The simulation results of the proposed control system prove the capability of the controller for enhancing the performance of the system in both steady and dynamic states.
机译:永磁同步电动机(PMSM)的无传感器速度控制仍在开发中,以消除现有的缺点,例如速度波动,转矩波动和响应慢。本文提出了一种基于改进的模型参考自适应系统(MRAS)的磁场定向控制(FOC),以控制电动机速度并使PMSM的速度和转矩波动最小化。改进的MRAS策略用于速度估计。建议的MRAS中增加了一个调节器,以减少转矩和速度波动。来自参考速度的前馈信号已与PMSM动态方程式结合使用,以增强系统的整体性能。具有特殊开关策略和不同直流电源的级联多电平逆变器(MLI)用作PMSM驱动器。级联的MLI的切换和设计基于获得更多的电压电平和更少的组件数量。该系统是使用Matlab / Simulink软件包进行仿真的。拟议的控制器成功地将速度和转矩波动最小化,并提供了更快的系统响应。所提出的控制系统的仿真结果证明了控制器在稳态和动态状态下都具有增强系统性能的能力。

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