Discrete-Time Nonlinear Robust Controller for Current Regulation in PMSM Drives
Articles > Article · 2017
Authors: Türker TÜRKER, Gurcan Yanik, Umit BÜYÜKKELEŞ, Faruk Bakan, Erkan MEŞE
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, Journal Indexed in SCI Expanded, International, 2017, vol 12, pp 1537-1547
DOI: 10.5370/jeet.2017.12.4.1537
Summary
In this paper, a discrete-time robust current controller is proposed for PMSM drives. The structure of the proposed controller is quite simple and does not require high computational resource. The only difference of the proposed controller from the classical dead-beat controller is the integral term which can easily be implemented in a PMSM drive. The stability analysis of the proposed controller is performed accounting in parametric uncertainties, unmodelled dynamics and disturbances in the mathematical model. The boundedness of the dynamical system and asymptotic convergence of dq-axes currents to their reference values are provided under certain conditions. Various simulation and experimental studies are performed and the results taken at different operation conditions show the validity of the proposed controller.