Computationally Cost-efficient Characteristics Analysis of EV Traction Motor considering AC Copper Loss based on 2-D Magneto-Static Analysis

Chin, J.-W.; Jung, Y.-H.; Ryu, J.-Y.; Park, M.-R.; Lim, M.-S.

doi:10.1109/ICEM49940.2020.9271053

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Computationally Cost-efficient Characteristics Analysis of EV Traction Motor considering AC Copper Loss based on 2-D Magneto-Static Analysis

Chin, J.-W.;
Jung, Y.-H.;
Ryu, J.-Y.;
Park, M.-R.;
Lim, M.-S.

Citations

SCOPUS

6

초록

This paper presented the cost-efficient method to reflect the AC copper loss when conducting the characteristics analysis of EV traction motor using post-process of 2-D magneto-static analysis. From the magnetic vector potential as a result of magneto-static finite element analysis, the distribution of electric field intensity and current density by eddy current in conductors were calculated. Then, considering the current input, the actual distribution of current density was obtained, and the AC copper loss and AC resistance were calculated sequentially. With calculated AC resistances along the overall load conditions, the characteristics analysis of synchronous motor was conducted. Finally, the characteristic analysis results were compared with the results by transient analysis and the results of considering only DC resistance. To investigate distinctly, the motor with hairpin was analyzed due to its large AC copper loss. By applying the proposed method, the efficiency of EV traction motor can be estimated precisely.

키워드

AC copper loss; Characteristics analysis; Eddy current; Efficiency; EV traction motor; Finite element analysis; Hairpin; High speed motor; Magneto-static analysis; Synchronous motor; Copper; Cost benefit analysis; Electric fields; Electric machinery; Electric resistance measurement; Static analysis; Transient analysis; Characteristic analysis; Characteristics analysis; Cost-efficient; Dc resistance; Distribution of electric field intensity; Load condition; Magnetic vector potentials; Magneto-Static analysis; Traction motors

제목: Computationally Cost-efficient Characteristics Analysis of EV Traction Motor considering AC Copper Loss based on 2-D Magneto-Static Analysis

저자: Chin, J.-W.; Jung, Y.-H.; Ryu, J.-Y.; Park, M.-R.; Lim, M.-S.

DOI: 10.1109/ICEM49940.2020.9271053

발행일: 2020-00

유형: Conference Paper

저널명: Proceedings - 2020 International Conference on Electrical Machines, ICEM 2020

페이지: 1723 ~ 1729