基于扰动观测器的永磁同步电机预测电流控制  

Predictive Current Control for Permanent Magnet Synchronous Motor Based on Disturbance Observer

作　　者：易伯瑜[1,2] 康龙云[2] 冯自成[2] 黄志臻[2] Yi Boyu;Kang Longyun;Feng Zicheng;Huang Zhizhen(Shanghai Centem Automobile Electronics Company Limited Shanghai 210210 China;School of Electric Power South China University of Technology Guangzhou 510640 China)

机构地区：[1]上海央腾汽车电子有限公司,上海210210 [2]华南理工大学电力学院,广州510640

出　　处：《电工技术学报》2016年第18期37-45,共9页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目(61104181)

摘　　要：基于面贴式永磁同步电机(SMPMSM)离散数学模型,提出一种无差拍预测电流控制方法。为补偿模型误差以及电压型逆变器死区时间对电流控制精度的影响,设计两个并行的扰动观测器来实时估计模型不确定项及由死区时间和逆变器非线性所引起的扰动电压,并证明了其稳定性。实验结果表明,基于预测电流控制算法的电流环具有良好的动态性能,观测器通过补偿参数摄动及死区时间的影响,使算法具有很好的鲁棒性并抵制了电流谐波分量。Based on the discrete mathematical model of surface-mounted permanent magnetsynchronous motors (SMPMSM), a predictive current control (PCC) scheme using dead-beat algorithmis proposed. To compensate the loss of current control precision influenced by model error andvoltage-source inverter dead-time, two parallel disturbance observers are designed to estimate modeluncertainty and the disturbance voltage, and their stability is proved. Experimental results show that,PCC improves dynamic performance of current loop, and disturbance observers can compensate theadverse effects of parameter variations and dead-time to make PCC more robust and have low currentharmonics.

关 键 词：面贴式永磁同步电机 预测电流控制 死区时间 扰动观测器 

分 类 号：TM301.2[电气工程—电机]