内嵌式永磁同步电机改进型解耦控制

发布时间：2018-05-20 19:57

本文选题：内嵌式永磁同步电机 + 弱磁控制　；参考：《电工技术学报》2015年01期

【摘要】：内嵌式永磁同步电机(IPMSM)具有好的转矩性能和宽的调速范围,但其电流控制器需要精确的参数模型,由于饱和效应影响,电感参数会随运行条件不同发生改变,控制器受耦合影响,系统容易出现速度及转矩超调、扰动等现象。为了提高IPMSM恒转矩及恒功率区的控制性能,本文设计了一种改进型电流解耦控制器。控制器基于模型参考自适应法对参数进行在线检测,检测系统加入了前馈及闭环反馈,保证了参数检测的准确性及鲁棒性。这种解耦电流控制器结构简单、紧凑,有效改善了控制性能。实验和仿真结果表明,这种改进型控制器能有效准确的实时在线检测参数,同时使得整个系统响应速度快、无超调、系统转速稳定无扰动现象,能明显地提升系统性能。
[Abstract]:Embedded permanent magnet synchronous motor (IPMSM) has good torque performance and wide speed range, but its current controller needs precise parameter model. Due to saturation effect, inductance parameters will change with the operation conditions. The controller is affected by coupling, and the system is prone to overshoot and disturbance of speed and torque. In order to improve the control performance of IPMSM constant torque and constant power region, an improved current decoupling controller is designed in this paper. Based on the model reference adaptive method, the controller detects the parameters online, and the detection system adds feedforward and closed-loop feedback to ensure the accuracy and robustness of the parameters detection. The decoupling current controller is simple and compact, and improves the control performance effectively. The experimental and simulation results show that the improved controller can effectively and accurately detect the parameters on line in real time. At the same time, the system response speed is fast, there is no overshoot, the speed of the system is stable and without disturbance, and the performance of the system can be improved obviously.
【作者单位】：华中科技大学强电磁工程与新技术国家重点实验室;
【基金】：国家自然科学基金资助项目(50807019)
【分类号】：TM341

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