Sensorless Control for PMLSM Based on Fuzzy Sliding Mode Observer

Hua Cai Lu; Juan Ti; Yi Ming Yuan; Li Sheng Wei

doi:10.4028/www.scientific.net/AMM.556-562.2270

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 556-562Sensorless Control for PMLSM Based on Fuzzy...

Sensorless Control for PMLSM Based on Fuzzy Sliding Mode Observer

Abstract:

In this paper, a new sensorless control method is proposed for a permanent magnet linear synchronous motor based on Fuzzy sliding mode observer, which combines the advantages of sliding mode observer and Fuzzy controller respectively. The difference between the current estimated value and the actual current value is regarded as sliding mode function; sliding mode function (current error) and variation of the error are used as the input of fuzzy controller, and the width of the boundary layer as the output, adjusting the width of the boundary layer dynamically in real time. The simulation results show that Fuzzy sliding mode observer is able to find a balance between soft chattering and steady-state error, keep the system robustness and control precision.

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Periodical:

Applied Mechanics and Materials (Volumes 556-562)

Pages:

2270-2273

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.556-562.2270

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Online since:

May 2014

Authors:

Hua Cai Lu*, Juan Ti, Yi Ming Yuan, Li Sheng Wei

Keywords:

Boundary Layer, Fuzzy Controller, PMLSM, Sliding Mode Observer

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* - Corresponding Author

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