A Rotor Flux Observer Based on Nonlinear Quadrature Double Compensation

In order to solve the problem of integration saturation drift and hardship in compensation quantity calculation exist in rotor flux observation of induction motor, a rotor flux observer based on nonlinear quadrature double compensation method is presented in this paper. The quantity of compensation...

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Veröffentlicht in:Applied Mechanics and Materials 2011-10, Vol.128-129 (Measuring Technology and Mechatronics Automation IV), p.25-29
Hauptverfasser: Fan, Bo, Li, Xing, Pu, Jie Xin, Ma, Jian Wei, Zhang, Ju Wei
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container_issue Measuring Technology and Mechatronics Automation IV
container_start_page 25
container_title Applied Mechanics and Materials
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creator Fan, Bo
Li, Xing
Pu, Jie Xin
Ma, Jian Wei
Zhang, Ju Wei
description In order to solve the problem of integration saturation drift and hardship in compensation quantity calculation exist in rotor flux observation of induction motor, a rotor flux observer based on nonlinear quadrature double compensation method is presented in this paper. The quantity of compensation is determined dynamically according to the quadrature level between flux and back electromotive force. Through the order change of compensation and low-pass filter, quick response of flux when signal frequency leaps is realized. The simulation result shows that the method can improve the flux waveform, realize the accurate and swift track of flux.
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subjects Compensation
Flux
Mathematical analysis
Nonlinearity
Observers
Quadratures
Rotors
Waveforms
title A Rotor Flux Observer Based on Nonlinear Quadrature Double Compensation
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