Title :
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
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;
Conference_Titel :
ELEKTRO, 2014
Conference_Location :
Rajecke Teplice
Print_ISBN :
978-1-4799-3720-2
DOI :
10.1109/ELEKTRO.2014.6847897
