Title: Comparative investigation on the dynamic behaviours of SRD operated under PI control strategies

Authors: Dongsheng Yu; Zeng Hui; Hao Chen

Addresses: School of Information and Electrical Engineering, China University of Mining and Technology, Quanshan District, XuZhou, 221008, Jiangsu Province, China ' School of Information and Electrical Engineering, China University of Mining and Technology, Quanshan District, XuZhou, 221008, Jiangsu Province, China ' School of Information and Electrical Engineering, China University of Mining and Technology, Quanshan District, XuZhou, 221008, Jiangsu Province, China

Abstract: In this paper, by making use of Fourier series, mathematic description of a four-phase switched reluctance drive (SRD) system with proportional-integral (PI) control is presented based on the equivalent non-linear inductance function. The PI control strategy is carried out under digital and analogous modes, respectively. After addressing the waveforms of system output variables, the bifurcation characteristics of digitally controlled SRD are discussed comparatively with its analogously controlled counterpart to highlight the differences between digital and analogous control strategies. Lastly, the experimental results are provided to further verify the correctness of the theoretical analysis.

Keywords: switched reluctance drives; SRD; advanced mechatronic systems; analogous control; digital control; dynamic behaviour; PI control; proportional-integral control.

DOI: 10.1504/IJAMECHS.2012.051556

International Journal of Advanced Mechatronic Systems, 2012 Vol.4 No.3/4, pp.177 - 186

Published online: 30 Aug 2014 *

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