| 一种新型模型参考自适应滑模速度辨识方法 |
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| 引用本文： | 李国华,王继强.一种新型模型参考自适应滑模速度辨识方法[J].电气传动,2011(9):10-13. |
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| 作者姓名： | 李国华 王继强 |
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| 作者单位： | 辽宁工程技术大学电气与控制工程学院 |
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| 基金项目： | 辽宁省重点实验室项目(2008S108) |
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| 摘 要： | 提出了一种新型的模型参考自适应滑模速度辨识方法,用于异步电动机转速的精确辨识.该方法的结构主要包括参考模型、可调模型和滑模控制器3部分,首先利用参考模型和可调模型分别计算电机的转子磁链,然后将两者误差送入滑模控制器中计算电动机的转速.其中,参考模型采用了一种结构简单的改进电压磁链模型,有效解决了传统电压模型固有的直流偏...
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| 关 键 词： | 模型参考自适应系统 滑模控制 速度辨识 异步电动机 改进电压模型 |
New Method of Speed Identification Based on Model Reference Adaptive Sliding Mode Control |
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| LI Guo-hua,WANG Ji-qiang.New Method of Speed Identification Based on Model Reference Adaptive Sliding Mode Control[J].Electric Drive,2011(9):10-13. |
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| Authors: | LI Guo-hua WANG Ji-qiang |
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| Affiliation: | (Faculty of Electrical and Control Engineering,Liaoning Technical University,Huludao 125105,Liaoning,China) |
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| Abstract: | A new method of speed observation based on MRAS sliding mode control was presented in order to obtain high precision speed observation for asynchronous motors.It consists of three parts:the reference model,the adjustable model and the sliding mode controller.The sliding mode controller uses the estimated rotor flux difference of the reference model and the adjustable model to calculate the speed of motor.In the method,the reference model uses a modified voltage model,an effective model to solve the inherent DC offset voltage error and integral error of the initial value problem to achieve an accurate flux and speed observation.The simulation results verify that the method has a fast response and high accuracy.Besides,it is robust to the variation of motor parameters. |
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| Keywords: | model reference adaptive system sliding mode control speed identification asynchronous motor modified voltage model |
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