Title: Modelling and simulation of a BLDC motor speed control system for electric vehicles

Authors: Nafaa Jeddi; Lilia El Amraoui; Fernando Tadeo

Addresses: Research Unit Signals and Mecatronic Systems, National Engineering School of Carthage, University of Carthage, Charguia II, 2035, Tunisia ' Research Unit Signals and Mecatronic Systems, National Engineering School of Carthage, University of Carthage, Charguia II, 2035, Tunisia ' Department of Systems Engineering and Automatic Control, Industrial Engineering School, University of Valladolid, Valladolid, Doctor Mergelina S/A 47005, Spain

Abstract: This paper describes the modelling and implementation of a sensorless control system (back-EMF control) on a brushless DC motor used in a traction drive system for an electric vehicle. The dynamic behaviour of the motor is first modelled, so speed PI controller, DC-AC inverter and commutation logic blocks are developed, in order to obtain a full control of the entire drive system, then, simulated using Simulink®. The elaborated study is based on determination of back-EMF, output current, motor speed and electromagnetic torque characteristics. Simulations results are presented to show the high performance and the efficiency of the simulated controlled system.

Keywords: electric vehicles; BLDC motors; brushless DC electrical motors; in-wheel motors; motor speed control; back-EMF control; sensorless control; dynamic modelling; PI control; controller design; simulation; DC-AC inverters; simulation; traction drive systems; output current; electromagnetic torque.

DOI: 10.1504/IJEHV.2016.078369

International Journal of Electric and Hybrid Vehicles, 2016 Vol.8 No.2, pp.178 - 194

Received: 14 Mar 2016
Accepted: 28 Mar 2016

Published online: 15 Aug 2016 *

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