Optimization of Stator Winding Turn Numbers for EV Tap-Change PMSM According to Driving Cycles운전사이클을 고려한 전기자동차용 권선절체모터의 권선수 최적화 연구
- Other Titles
- 운전사이클을 고려한 전기자동차용 권선절체모터의 권선수 최적화 연구
- Authors
- Im, Seong-Hwan; Gu, Bon-Gwan; Lim, Jong-Kyong; Kim, Rae-Young
- Issue Date
- Apr-2022
- Publisher
- Korean Institute of Electrical Engineers
- Keywords
- Copper loss; Driving cycle; Electric vehicle; Inverter loss; Tap-Change motor
- Citation
- Transactions of the Korean Institute of Electrical Engineers, v.71, no.4, pp.642 - 649
- Indexed
- SCOPUS
KCI
- Journal Title
- Transactions of the Korean Institute of Electrical Engineers
- Volume
- 71
- Number
- 4
- Start Page
- 642
- End Page
- 649
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/138742
- DOI
- 10.5370/KIEE.2022.71.4.642
- ISSN
- 1975-8359
- Abstract
- Driving cycles are used to test the fuel economy and driving range of the electric vehicle propulsion motor and inverter on dynamometer. For a longer driving range, the propulsion motor and inverter need high efficiency at the driving cycle’s frequent speed and torque points. In this paper, tap-change PMSM (Permanent Magent Synchronous Motor) is studied as an electric vehicle propulsion motor for a better efficiency with two driving cycles: UDDS and HWFET. They have different high energy demand drive speeds which are 3krpm and 7krpm. With energized stator winding selection, tap-change motor high efficient regions can be adjusted to the each high energy demand drive points of UDDS and HWFET. Thus the designed tap-changes PMSM winding turn numbers are selected to minimize the motor copper loss and inverter loss at both driving cycles high energy demand drive speeds. The designed tap-change motor is implemented by rewinding a mass produced PMSM for a electric vehicle. By comparison experimental results of the motor and inverter loss with the mass produced PMSM, the designed tap-change one has a 1.63% energy efficiency improvement according to combined driving cycles.
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