Open AccessMechanism of magnetic losses variation in stator‐end structures with windings extensions using space vectors
Author(s) -
Wang Likun,
Kou Baoquan,
Sun Yutian,
Ye Jian
Publication year - 2018
Publication title -
iet science, measurement and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 49
eISSN - 1751-8830
pISSN - 1751-8822
DOI - 10.1049/iet-smt.2017.0273
Subject(s) - stator , eddy current , electromagnetic coil , rotor (electric) , generator (circuit theory) , mechanics , electromagnetic field , mechanism (biology) , magnetic field , acoustics , nuclear magnetic resonance , mechanical engineering , materials science , electrical engineering , physics , engineering , power (physics) , quantum mechanics
Electromagnetic and heat issues are more complex in the end region of a generator than in the line segment area. In this study, the electromagnetic field and related challenges are discussed. Stepped cores are considered in the performed calculations. Eddy‐current losses variation mechanisms for structures in the end region and iron losses of end stepped cores are investigated under rated load condition, using space vectors. The effects of the end windings stretching out the end cores from the rotor and stator on the electromagnetic losses of the end structures studied in detail. The obtained results can be employed for developing large turbo‐generators, and reveal a novel approach for reducing eddy currents and iron losses.