基于滑模模型参考自适应观测器的无速度传感器三相永磁同步电机模型预测转矩控制
发布时间：2018-10-30 08:05
【摘要】：针对三相永磁同步电机(PMSM)驱动系统,基于滑模变结构模型参考自适应(MRAS)技术,提出了一种新颖的无速度传感器模型预测转矩控制(MPTC)策略.采用滑模变结构模型参考自适应方法构造电机转速观测器,以改善速度估计精度并提高系统鲁棒性;利用模型预测转矩控制策略,以达到减小转矩和磁链纹波并提高系统控制性能的目的.仿真结果表明:就滑模MRAS观测器与MRAS观测器比较而言,基于前者的PMSM无速度传感器MPTC系统比基于后者的PMSM无速度传感器MPTC系统具有较强的鲁棒性和更好的动态性能;就MPTC与直接转矩控制(DTC)和磁场定向控制(FOC)比较而言,采用前者策略的无速度传感器电机驱动系统能够降低逆变器开关频率、减少相电流总谐波失真(THD),从而提高系统可靠性.
[Abstract]:Based on sliding mode variable structure model reference adaptive (MRAS) technology, a novel speed sensorless model predictive torque control (MPTC) strategy is proposed for three-phase permanent magnet synchronous motor (PMSM) (PMSM) drive system. The sliding mode variable structure model reference adaptive method is used to construct the motor speed observer to improve the accuracy of speed estimation and the robustness of the system. The model is used to predict the torque control strategy to reduce the torque and flux ripple and to improve the control performance of the system. The simulation results show that compared with the MRAS observer, the sliding mode MRAS observer has better robustness and better dynamic performance than the PMSM sensorless MPTC system based on the former. Compared with direct torque control (DTC) and field-oriented control (FOC), the speed sensorless motor drive system using the former strategy can reduce the switching frequency of the inverter and reduce the total harmonic distortion of the phase current (THD),. In order to improve the reliability of the system.
【作者单位】： 兰州交通大学自动化与电气工程学院;悉尼科技大学工程与信息技术学院;
【基金】：国家自然科学基金项目(61463025)资助~~
【分类号】：TP212;TM341
本文编号：2299428
[Abstract]:Based on sliding mode variable structure model reference adaptive (MRAS) technology, a novel speed sensorless model predictive torque control (MPTC) strategy is proposed for three-phase permanent magnet synchronous motor (PMSM) (PMSM) drive system. The sliding mode variable structure model reference adaptive method is used to construct the motor speed observer to improve the accuracy of speed estimation and the robustness of the system. The model is used to predict the torque control strategy to reduce the torque and flux ripple and to improve the control performance of the system. The simulation results show that compared with the MRAS observer, the sliding mode MRAS observer has better robustness and better dynamic performance than the PMSM sensorless MPTC system based on the former. Compared with direct torque control (DTC) and field-oriented control (FOC), the speed sensorless motor drive system using the former strategy can reduce the switching frequency of the inverter and reduce the total harmonic distortion of the phase current (THD),. In order to improve the reliability of the system.
【作者单位】： 兰州交通大学自动化与电气工程学院;悉尼科技大学工程与信息技术学院;
【基金】：国家自然科学基金项目(61463025)资助~~
【分类号】：TP212;TM341
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