Independent Control of Two Permanent-Magnet Synchronous Motors Fed by a Four-Leg Inverter

Author

Ito, Satoshi ; Moroi, Takayuki ; Kubo, Yuji ; Matsuse, Kouki ; Rajashekara, Kaushik

Author_Institution

Sanken Electr. Corp. Ltd., Niiza, Japan

Volume

51

Issue

1

fYear

2015

fDate

Jan.-Feb. 2015

Firstpage

753

Lastpage

760

Abstract

This paper proposes a vector control strategy for independent control of two permanent-magnet synchronous motors (PMSMs) using a single four-leg inverter (4LI). An expanded two-arm modulation to obtain a balanced three-phase output voltage is described. This paper also proposes a method to compensate for the fluctuations in the neutral point voltage of two split capacitors in the dc link. The experimental results show that independent speed and position control of two PMSMs can be achieved using a single 4LI with the proposed vector control method.

Keywords

invertors; machine vector control; permanent magnet motors; position control; power capacitors; synchronous motors; velocity control; DC link; PMSM; four-leg inverter; independent control; neutral point voltage; permanent magnet synchronous motors; position control; speed control; split capacitors; two-arm modulation; vector control method; vector control strategy; Capacitors; Fluctuations; Inverters; Machine vector control; Modulation; Switches; Vectors; Four-leg inverter (4LI); neutral-point potential compensation; permanent-magnet synchronous motor (PMSM); two-arm modulation;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2014.2332637

Filename

6842595