Investigation of optimal operation method for Permanent Magnet Synchronous Motor drive system with 3-level inverter

Author

Itoh, Jun-ichi ; Sato, Daisuke ; Tanaka, T.

Author_Institution

Nagaoka Univ. of Technol., Nagaoka, Japan

fYear

2012

fDate

11-14 Nov. 2012

Firstpage

1

Lastpage

6

Abstract

In this paper, an optimal converter drive method for Permanent Magnet Synchronous Motor (PMSM) with a 3-level inverter is discussed in terms of loss minimization. The 3-level inverter can change an operation mode between two modulations namely, PWM and 1´pulse modulation at a decided point. In this paper, we discuss the interchange point for the two modulations subject to the total loss of PMSM drive system in regards to the motor speed. First, the analysis on intersection point between PWM and 1´pulse modulation is demonstrated, and then the results show, that the motor drive system achieves the highest efficiency with PWM before the intersection point. On one hand, implementation of 1´pulse modulation can achieve the highest efficiency.

Keywords

PWM invertors; optimisation; permanent magnet motors; synchronous motor drives; 1 pulse modulation; 3-level inverter; PMSM drive system; PWM modulation; interchange point; optimal operation method; permanent magnet synchronous motor drive system; Finite element methods; Harmonic analysis; Inverters; Iron; Loss measurement; Pulse width modulation; 1´pulse modulation; 3-level inverter; PWM drive; Permanent magnetic synchronous motor;

fLanguage

English

Publisher

ieee

Conference_Titel

Renewable Energy Research and Applications (ICRERA), 2012 International Conference on

Conference_Location

Nagasaki

Print_ISBN

978-1-4673-2328-4

Electronic_ISBN

978-1-4673-2329-1

Type

conf

DOI

10.1109/ICRERA.2012.6477377

Filename

6477377