| 一种基于MRAS的异步电机速度辨识方法 | |
| 陈伟 ; 瞿文龙 ; 陆海峰 ; CHEN Wei ; QU Wen-long ; LU Hai-feng | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 速度辨识 模型参考自适应 微分跟踪器 异步电机 speed identification model reference adaptive system tracking-differentiator induction motor TM343 |
| 其他题名 | A speed identification method for induction motor based on MRAS |
| 中文摘要 | 本文提出了一种在静止坐标系下实现的模型参考自适应系统,以辨识异步电机的转速。该方法的参考模型和可调模型分别由电机定子侧和转子侧的方程构成。参考模型中不含定子电阻,并且避免了纯积分运算,因而在宽速度范围内具有较好的鲁棒性。可调模型包含电机转速的信息和一个电流模型转子磁链观测器。当电机转速的估计值收敛于转速的真实值时,观测的转子磁链也收敛于其真实值,可将其用于直接磁场定向控制中。另外,为避免对定子电流的纯微分,本文应用微分跟踪器以提取高质量的微分信号。数值仿真和实验结果验证了该方法的有效性。; In this paper,a model reference adaptive system(MRAS) implemented in stationary reference frame is proposed to identify the rotor speed of an induction motor.The reference model and adjustable model used in this MRAS scheme are composed of stator equations and rotor equations respectively.Stator resistance and pure integration are removed from the reference model,resulting in robust performance in wide speed range.The adjustable model contains the information of rotor speed and a current model rotor flux observer.When the estimated speed converges to the actual rotor speed,the rotor flux observed converges to its true value,which can be used in direct field orientation control(DFOC).In addition,in order to avoid pure derivative operation on stator current,tracking-differentiator is adopted to acquire differential signals with high quality.Simulations and experimental results have verified its effectiveness.; 国家“863”高技术资助项目(2005AA501130) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/62522]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 陈伟,瞿文龙,陆海峰,等. 一种基于MRAS的异步电机速度辨识方法[J],2010, 2010. |
| APA | 陈伟,瞿文龙,陆海峰,CHEN Wei,QU Wen-long,&LU Hai-feng.(2010).一种基于MRAS的异步电机速度辨识方法.. |
| MLA | 陈伟,et al."一种基于MRAS的异步电机速度辨识方法".(2010). |
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