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Control of Dual Three-Phase Permanent Magnet Synchronous Machine Based on Five-Leg Inverter.
- Source :
- IEEE Transactions on Power Electronics; Nov2019, Vol. 34 Issue 11, p11071-11079, 9p
- Publication Year :
- 2019
-
Abstract
- This paper proposes a current control of dual three-phase permanent magnet synchronous machine (PMSM) based on five-leg inverter. The five-leg inverter can be utilized to drive dual three-phase PMSM with full torque at slow speed when the conventional dual three-phase voltage source inverter (VSI) has a faulty inverter leg. Usually, the common leg in the five-leg inverter may have severe current stress. By dedicated selection of which two phases as a pair to share the common leg, its current rating is approximately half of current rating of other legs. Meanwhile, the five-leg inverter can fully fulfill the vector space decomposition control for dual three-phase PMSM, which has the same dynamical performance as the conventional dual three-phase VSI. However, due to the asymmetry of five-leg inverter non-linearity, the currents of dual three-phase PMSM are unbalanced. To mitigate this issue, the five-leg inverter non-linearity compensation is also introduced and investigated in this paper, whose effectiveness is verified by comparative experiments on a prototype dual three-phase PMSM. [ABSTRACT FROM AUTHOR]
- Subjects :
- PERMANENT magnets
VECTOR spaces
MACHINING
IDEAL sources (Electric circuits)
Subjects
Details
- Language :
- English
- ISSN :
- 08858993
- Volume :
- 34
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Power Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 138481836
- Full Text :
- https://doi.org/10.1109/TPEL.2019.2900073