A Rotor Flux Observer Based on Nonlinear Quadrature Double Compensation

Bo Fan; Xing Li; Jie Xin Pu; Jian Wei Ma; Ju Wei Zhang

doi:10.4028/www.scientific.net/AMM.128-129.25

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 128-129A Rotor Flux Observer Based on Nonlinear...

A Rotor Flux Observer Based on Nonlinear Quadrature Double Compensation

Abstract:

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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Periodical:

Applied Mechanics and Materials (Volumes 128-129)

Pages:

25-29

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.128-129.25

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Online since:

October 2011

Authors:

Bo Fan, Xing Li, Jie Xin Pu, Jian Wei Ma, Ju Wei Zhang

Keywords:

Integration Saturation, Low-Pass Filter (LPF), Nonlinear Quadrature Compensation, Rotor Flux Observation

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References

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