| 基于改进MRAS观测器无速度传感器感应电机转速估计方法 |
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| 引用本文： | 王高林,于泳,陈伟,徐殿国.基于改进MRAS观测器无速度传感器感应电机转速估计方法[J].电气传动,2009,39(1). |
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| 作者姓名： | 王高林 于泳 陈伟 徐殿国 |
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| 作者单位： | 哈尔滨工业大学,电气工程及自动化学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 为了提高无速度传感器感应电机矢量控制系统的低速性能,提出了一种改进的转速估计方法.由于转速自适应观测器是一个具有非线性并且较复杂的模型,将两相静止坐标系中的观测器输出误差系统变换到转子磁场旋转坐标系中,通过推导出的单输入单输出误差系统来得到满足观测器稳定性条件.同时对定子电阻进行在线辨识以提高系统的鲁棒性,采用了一种改进的定子电阻自适应率.通过11 kW感应电机无速度传感器转子磁场定向矢量控制实验平台验证了所提出方案的有效性.
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| 关 键 词： | 感应电机 模型参考自适应系统 转速估计 定子电阻辨识 |
Improved Speed Estimation Method Based on MRAS Observer for Sensorless Induction Motor |
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| WANG Gao-lin,YU Yong,CHEN Wei,XU Dian-guo.Improved Speed Estimation Method Based on MRAS Observer for Sensorless Induction Motor[J].Electric Drive,2009,39(1). |
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| Authors: | WANG Gao-lin YU Yong CHEN Wei XU Dian-guo |
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| Affiliation: | School of Electrical Engineering & Automation;Harbin Institute of Technology;Harbin 150001;Heilongjiang;China |
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| Abstract: | An improved speed estimation method was proposed to improve the performance of sensorless vector controlled induction motor drives.The observer error system is translated into synchronous reference frame to avoid the nonlinear and complicated dynamics of the estimator.And the stability conditions can be achieved through the single-input and single-output error system.To improved robustness of the observer,the stator resistance is identified synchronously based on an improved adaptive mechanism.The feasibili... |
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| Keywords: | induction motor model reference adaptive system speed estimator stator resistance identification |
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