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Combined Star-Delta Windings to Improve Synchronous Reluctance Motor Performance.
- Source :
-
IEEE Transactions on Energy Conversion . Dec2016, Vol. 31 Issue 4, p1479-1487. 9p. - Publication Year :
- 2016
-
Abstract
- This paper analyzes and compares the synchronous reluctance motor (SynRM) performance for a conventional star winding and for a combined star-delta connected winding under healthy and faulty conditions. The finite element method is used to simulate the SynRM characteristics in case of normal star and in case of combined star-delta connected windings. For the healthy case, it was found that for the same current, the SynRM output power increased by about 5% for the star-delta connected windings compared with the conventional star connection. Moreover, the efficiency increased slightly by 0.20%. Probably the strongest advantage of the combined star-delta winding is observed when a phase fault occurs. When one phase is missing, for the same current, the star-delta connected motor keeps 80% of the rated torque in the healthy case, while the star connected motor only keeps 40%. Furthermore, the torque ripple of the star wound machine is extremely high in case of a missing phase, compared to the star-delta wound machine. Simulation results were validated by experimental results to show the effectiveness of the star-delta connected windings on the SynRM. [ABSTRACT FROM PUBLISHER]
- Subjects :
- *SYNCHRONOUS electric motors
*RELUCTANCE motors
*FINITE element method
Subjects
Details
- Language :
- English
- ISSN :
- 08858969
- Volume :
- 31
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Energy Conversion
- Publication Type :
- Academic Journal
- Accession number :
- 119770845
- Full Text :
- https://doi.org/10.1109/TEC.2016.2576641