Open AccessResearch on eddy current losses algorithm in solid rotor of high speed squirrel cage induction motor
Author(s) -
Chou Weixiang,
Liang Yanping,
Gao Lianlian,
Wang Dongmei
Publication year - 2020
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2019.0884
Subject(s) - squirrel cage rotor , rotor (electric) , eddy current , induction motor , finite element method , transient (computer programming) , control theory (sociology) , current (fluid) , engineering , algorithm , computer science , mechanics , physics , mechanical engineering , voltage , electrical engineering , structural engineering , control (management) , artificial intelligence , operating system
Aiming at the shortcomings of the analytical algorithm and numerical algorithm for calculating the eddy current losses in the solid rotor of high speed squirrel cage induction motor, this study proposes a semi‐analytical algorithm. Based on the magnetic field of the rotor surface and Maxwell's equations, the analytical formula of this algorithm is derived. According to the law of energy conservation, the losses in rotor and rotor bars are calculated, respectively, so that the eddy current losses in the solid rotor are calculated indirectly. Taking a high speed squirrel cage induction motor as an example, the eddy current losses in the solid rotor are calculated by the semi‐analytical method. The calculation result is verified by the two‐dimensional transient finite‐element method, and the calculation result meets the basic requirements of engineering practice.