Reduction of Output Common Mode Voltage Using a Novel SVM Implementation in Matrix Converters for Improved Motor Lifetime

Author

Espina, Javier ; Ortega, Carlos ; de Lillo, Liliana ; Empringham, Lee ; Balcells, Josep ; Arias, Antoni

Author_Institution

Power Electron., Machines & Control Group, Univ. of Nottingham, Nottingham, UK

Volume

61

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

5903

Lastpage

5911

Abstract

This paper presents the study of an alternative space vector modulation (SVM) implementation for matrix converters (MCs), which reduces the output common mode (CM) voltage. The strategy is based on replacing the MC zero vectors with rotating ones. In doing this, the CM voltage (CMV) can be reduced, which, in turn, reduces the CM leakage current. By reducing the CM current, which flows inside the motor through the bearings and windings, the induction motor (IM) deterioration can be slowed down. This paper describes the SVM pattern and analyzes the CMV and the leakage current paths. Simulation and experimental results based on an MC-IM drive are provided to corroborate the presented approach.

Keywords

induction motor drives; leakage currents; machine control; matrix convertors; vectors; voltage control; CM leakage current; CMV; IM deterioration; MC zero vectors; MC-IM drive; SVM implementation; SVM pattern; induction motor; leakage current paths; matrix converters; motor lifetime; output common mode voltage; space vector modulation; Capacitance; Decision support systems; Leakage currents; Modulation; Shafts; Standards; Vectors; Bearing degradation; common mode voltage (CMV); leakage currents; matrix converter (MC); space vector modulation (SVM);

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2014.2304931

Filename

6733291