Modified field oriented control for smooth torque operation of a BLDC motor

Author

Lazor, Marek ; Stulrajter, Marek

Author_Institution

AMPG, Freescale Semicond., Inc., Roznov pod Radhostem, Czech Republic

fYear

2014

fDate

19-20 May 2014

Firstpage

180

Lastpage

185

Abstract

This paper describes a novel approach to field oriented control of a BLDC (Brushless Direct-Current) motor producing a significantly reduced torque ripple. This paper presents a standard mathematical model of a BLDC motor in the abc reference frame which is suitable for simulation of the six-step control strategy, and a mathematical model of a BLDC motor in the dq reference frame suitable for standard and modified field oriented control strategies. An extended dq transformation, in other words a Park´s-like transformation, is described and implemented in the simulation model. Simulation results of all the control strategies are evaluated and compared.

Keywords

brushless DC motors; machine vector control; permanent magnet motors; synchronous motors; torque control; BLDC motor; Park´s-Iike transformation; abc reference frame; brushless direct-current motor; dq reference frame; extended dq transformation; modified field oriented control; permanent magnet synchronous motor; smooth torque operation; standard mathematical model; torque ripple reduction; Mathematical model; Pumps; Simulation; Torque; BLDC motor; extended Park´s transformation; modified field oriented control; smooth torque;

fLanguage

English

Publisher

ieee

Conference_Titel

ELEKTRO, 2014

Conference_Location

Rajecke Teplice

Print_ISBN

978-1-4799-3720-2

Type

conf

DOI

10.1109/ELEKTRO.2014.6847897

Filename

6847897