Load Torque Observer Design of PMSMs for EVs Based on Square-Root Unscented Kalman Filtering

Jian Feng Chen; Xiao Dong Sun; Long Chen; Hao Bin Jiang

doi:10.4028/www.scientific.net/AMM.668-669.615

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 668-669Load Torque Observer Design of PMSMs for EVs Based...

Load Torque Observer Design of PMSMs for EVs Based on Square-Root Unscented Kalman Filtering

Abstract:

Varying load torque is an important influence factor in speed tracking of PMSM for EVs. This paper presents a PMSM control strategy using load torque observer. After introducing the entire structure of PMSM control system, a state observer is described based on square-root unscented Kalman filtering. Simulation tests are carried out to examine the speed tracking performance of PMSM compensated with the state observer. The results demonstrate that the proposed method is superior to another one using SMC in control accuracy and regulatory time.

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Periodical:

Applied Mechanics and Materials (Volumes 668-669)

Pages:

615-618

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.668-669.615

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Online since:

October 2014

Authors:

Jian Feng Chen*, Xiao Dong Sun, Long Chen, Hao Bin Jiang

Keywords:

EV, Load Torque Observer, PMSM, Square-Root Unscented Kalman Filtering

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