基于新型扰动观测器的永磁同步电机滑模控制  

Sliding Mode Control for Permanent Magnet Synchronous Motor Based on Novel Disturbance Observer

作　　者：白天明[1] 

机构地区：[1]辽宁机电职业技术学院,辽宁丹东118001

出　　处：《电机与控制应用》2016年第9期20-24,共5页Electric machines & control application

摘　　要：为了提高永磁同步电机(PMSM)调速系统的控制性能,提出了一种基于新型扰动观测器的滑模速度控制器。建立了包含参数不确定性及负载扰动的PMSM数学模型。为了减少扰动量的影响,设计了一种新型扰动观测器,并以此得到的观测值作为前馈量补偿到滑模控制器的输入端。仿真及试验结果表明,与传统PI控制器相比,该算法提高了系统的鲁棒性和动态响应速度。A siding mode control（SMC） strategy with a novel disturbance observer was proposed for permanent magnet synchronous motor （PMSM）. The mathematical model of PMSM composed of parameters uncertainty and disturbance was established, in order to estimate the disturbance caused by model parameters variation and load change, a novel disturbance observer was employed, and then this estimated value was used to construct a feed- forward compensation which was added to SMC input. All results showed that the arithmetic has the advantages of faster response, less stabilization error compared to traditional PI controller.

关 键 词：永磁同步电机 PI控制 滑模控制 扰动观测器 

分 类 号：TM351[电气工程—电机]