A New Control Method for Torque Ripple Compensation of Permanent Magnet Motors

Author

Nakao, N. ; Akatsu, K.

Author_Institution

Shibaura Inst. of Technol., Tokyo, Japan

fYear

2010

fDate

21-24 June 2010

Firstpage

1421

Lastpage

1427

Abstract

This paper presents a new control method for a torque ripple compensation of permanent magnet synchronous motors (PMSMs). The control method is based on a new equation to estimate the instantaneous torque. The equation can accurately take into account variations of both a magnetic energy and a magnetic co-energy. To achieve a stable and an effective torque ripple reduction, a feedforward control and a feedback control are applied to the proposal system. In this paper, the simulation results show that the instantaneous torque estimation result is more accurate than the conventional method. In addition, the effectiveness of the control method is verified by both the simulation and the experiment.

Keywords

feedforward; machine control; permanent magnet motors; synchronous motors; torque control; PMSM; feedback control; feedforward control; magnetic coenergy; permanent magnet motors; torque ripple compensation; Control systems; Equations; Feedback control; Inductance; Magnetic domains; Magnetic flux; Permanent magnet motors; Power system harmonics; Proposals; Torque control; Magnetic co-energy; Magnetic energy; PMSM; Spatial harmonics; Time domain harmonics; Torque estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC), 2010 International

Conference_Location

Sapporo

Print_ISBN

978-1-4244-5394-8

Type

conf

DOI

10.1109/IPEC.2010.5544491

Filename

5544491