Composite Adaptive Speed Controller and Rotor Resistance Estimator for Induction Motor Drives Based on Passivity Theorem

以耗散性定理為基礎之感應馬達複合型適應速度控制器與轉子電阻估測器

陳進益(Jenn-Yih Chen) ； 李炳寅(Bean-Yin Lee)

《中國機械工程學刊》 29卷1期 (2008/02) Pp. 29-35

https://doi.org/10.29979/JCSME.200802.0004

摘要

本文提出感應馬達的複合型適應速度控制器與轉子電阻估測器，首先以輸入－輸出線性化的方法使馬達轉速與轉子磁通在暫態時解耦合，然後利用電流型轉子磁通估測器以估測轉子磁通，並設計適應法則估測馬達的轉子電阻、轉動慣量、黏滯摩擦係數與負載轉矩。引用耗散性定理分析轉子磁通估測器結合轉子電阻估測器以及複合型適應速度控制器個別的耗散性，在不需要定義Lyapunov函數的條件下，藉此耗散性證明整體控制系統為全域穩定。最後，實驗結果顯示本文所提出的方法對於轉子電阻與負載轉矩的變動都具有強健性，此外，也有良好的速度追蹤響應以及參數估測特性。

並列摘要

This paper presents a composite adaptive speed controller and a rotor resistance estimator for an induction motor. First, the input-output linearization theory is adopted to decouple the rotor speed and the flux. Furthermore, we use a rotor flux observer to estimate the flux, and design adaptation laws to estimate the rotor resistance, moment of inertia, viscous coefficient and the load torque. The passivity properties of the rotor flux observer, rotor resistance estimator and the composite speed controller are analyzed by the passivity theorem. According to these properties, we can prove that the overall speed control system is globally stable without using Lyapunov-type arguments. Finally, experimental results are provided to show that the proposed scheme is robust to variations of the rotor resistance and the load torque. Moreover, better speed tracking output response and parameters estimating characteristic can be obtained by the proposed method.

並列關鍵字

composite adaptive speed controller ； rotor resistance estimator ； passivity