Features Analysis of Partial Demagnetization Faults in the 6-phase PM Synchronous Generator with Rectifier Load System

DOI

10.2991/mmebc-16.2016.305How to use a DOI?

Keywords

6-phase permanent magnet synchronous genrator, partial demagnetization faults, FEM combined with electric circuit method.

Abstract

This paper focuses on partial demagnetization faults (PDMF) in the 6-phase permanent magnet synchronous generator (PMSG) with rectifier load system. In the study, a multi-loop combined with finite element method (FEM) mathematical model is presented. The multi-loop model utilizes transformation matrix to describe the dynamics of actual circuit topology, which is influenced by on-and-off states of diodes. The 2-D FEM is employed to calculate magnetic field excited by the PM rotor and induced electromotive force (EMF) in stator coils. Simulation and experimental results imply that phase voltage, phase current, dc load voltage and dc load current decline when PDMF occurs. What's more, significant unbalanced current will appear between parallel connected windings if the machine has two parallel branches in a phase winding. The analysis of the paper provides meaningful reference to on-line monitoring and protection for demagnetization faults in the 6-phase PMSG.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Binghui Wang
AU  - Yuguang Sun
PY  - 2016/06
DA  - 2016/06
TI  - Features Analysis of Partial Demagnetization Faults in the 6-phase PM Synchronous Generator with Rectifier Load System
BT  - Proceedings of the 2016 6th International Conference on Machinery, Materials, Environment, Biotechnology and Computer
PB  - Atlantis Press
SP  - 1499
EP  - 1505
SN  - 2352-5401
UR  - https://doi.org/10.2991/mmebc-16.2016.305
DO  - 10.2991/mmebc-16.2016.305
ID  - Wang2016/06
ER  -