Asymmetric Rotor Design for Synchronous Motor to Reduce Harmonics of Induced Voltage under Load Condition

Autor: Myung-Hwan Yoon, Kyung Tae Jung, Jung-Pyo Hong, Myung-Seop Lim, Jae-Woo Jung
Rok vydání: 2018
Předmět:
Zdroj: Journal of Magnetics. 23:442-447
ISSN: 2233-6656
1226-1750
DOI: 10.4283/jmag.2018.23.3.442
Popis: The harmonics of the induced voltage under load conditions cause the deterioration of the motor performance. It occurs when the peak value of the demand voltage exceeds the DC link voltage. In this paper, thus, to reduce the induced voltage harmonics under load conditions, an asymmetric rotor design method using the advanced inverse cosine function (AICF) is proposed. Using this method, the rotor shape is determined by considering the armature reaction under certain load condition. As a result, an improved concentrated flux synchronous motor (CFSM) achieving the required performance is designed. Lastly, the induced voltages waveforms of the proposed motors under the load conditions are compared through finite-element analysis (FEA) as well as experiments.
Databáze: OpenAIRE