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Title: Iron losses in non-oriented steel subjected to matrix and DC-link converter supply : an experimental and analytical study on variable speed drives
Author: Sagarduy Ochoa de Eribe, Juan
ISNI:       0000 0004 2748 5802
Awarding Body: Cardiff University
Current Institution: Cardiff University
Date of Award: 2009
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A system approach to variable speed drives consisting of two low voltage induction motors (Y and A connection) fed by matrix and two-level DC-link converters is developed (chapter 7). The ratio of iron to copper winding losses is studied based on the induction motor equivalent circuit and constant V/f converter control. Electrical efficiency increased by up to 10% (partial load and low speed) in Y-connected motors fed by the matrix converter. While similar values of efficiency were observed in A-configured motors, up to 8% higher output power is extracted from the machines under two-level DC-link converter supply.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available