| 基于滑模变结构MRAS的PMSM速度辨识 |
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| 引用本文： | 刘军,汪全虎,陈敏祥. 基于滑模变结构MRAS的PMSM速度辨识[J]. 轻工机械, 2014, 32(5): 47-50 |
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| 作者姓名： | 刘军 汪全虎 陈敏祥 |
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| 作者单位： | 浙江大学电气工程学院,浙江杭州,310027 |
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| 摘 要： | 提出了一种永磁同步电机无速度传感器速度辨识的方法。在模型参考自适应的基础上,加入了滑模变结构控制,构成了滑模变结构的模型参考自适应速度辨识器。并针对滑模变结构控制特有的抖振引入了Sigmoid函数进行改善。在MATLAB/Simulink中对整个永磁同步电机无速度传感器矢量控制系统进行了仿真分析,验证了滑模变结构MRAS速度辨识器的可行性,发现其具有更好的鲁棒性和动态性能。
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| 关 键 词： | 永磁同步电机(PMSM) 无速度传感器 滑模变结构MRAS Sigmoid函数 |
Research of Speed Identification for PMSM Based on Sliding Mode Variable Structure MRAS |
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| LIU Jun,WANG Quanhu,CHEN Minxiang. Research of Speed Identification for PMSM Based on Sliding Mode Variable Structure MRAS[J]. Light Industry Machinery, 2014, 32(5): 47-50 |
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| Authors: | LIU Jun WANG Quanhu CHEN Minxiang |
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| Affiliation: | ( College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China) |
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| Abstract: | This paper proposes a method of speed identification in the sensorless vector control of PMSM.The sliding mode variable structure MRAS speed observer was constituted of model reference adaptive system and sliding mode variable structure control.The sigmoid function was introduced to eliminate the common dithering of sliding mode control.The simulation of the sensorless vector control of PMSM in MATLAB/Simulink proves that the speed observer can work effectively and has stronger robustness and better dynamic performance. |
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| Keywords: | permanent magnet synchronous motor speed sensorless sliding mode variable structure MRAS sigmoid function |
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