基于鲁棒观测器的变漏磁永磁电机无位置传感器控制研究  

Research on Sensorless Control of a Variable Leakage Flux Permanent Magnet Synchronous Motor Based on Robust Estimator

作　　者：王其轩 朱孝勇[1] 张丽 徐磊[1] 张超[1] WANG Qixuan;ZHU Xiaoyong;ZHANG Li;XU Lei;ZHANG Chao(School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu Province,China)

机构地区：[1]江苏大学电气信息工程学院,江苏省镇江市212013

出　　处：《中国电机工程学报》2022年第17期6480-6490,共11页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51937006,51907079)。

摘　　要：对于变漏磁永磁电机无位置传感器控制系统,由于新型漏磁支路设计带来的电感参数失配和反电势谐波问题,导致其无位置传感器驱动系统的观测精度和稳定性降低。针对上述的问题,该文提出一种新型自适应解耦鲁棒观测器。首先,通过有效磁链简化变漏磁永磁电机数学模型并削弱电感参数变化对系统的影响。其次,利用鲁棒和梯度下降算法设计位置观测器,提高观测器对变漏磁永磁电机电感参数变化的鲁棒性,同时消除新型的漏磁支路设计带来的特定次谐波的影响,有效提高该类电机无位置传感器控制系统的估计精度及稳定性。最后,通过实验验证所提控制系统的有效性。Variable leakage flux permanent magnet synchronous motor(VLF-PMSM) suffers from the deteriorated performance in sensorless control system due to its characteristics of the inductance parameter mismatch and back electromotive force harmonics caused by novel leakage flux branches. To overcome the problem mentioned above, an adaptive decoupling robust position estimator was proposed for the VLF-PMSM sensorless control system. First, the proposed method simplified the VLF-PMSM mathematical model and reduced the effect of inductance parameter variations according to the active flux concept. Then, the robust and gradient descent algorithm was utilized to maintain the robustness to inductance parameter variations and eliminate the specific order harmonics caused by the novel leakage flux branches.Meanwhile, the accuracy and stability were enhanced. Finally,the feasibility of the proposed estimated system was verified.

关 键 词：变漏磁永磁电机 无位置传感器控制 参数鲁棒控制 谐波抑制 

分 类 号：TM351[电气工程—电机]