| Title |
Design of a 30 kW Vehicle Power-Coupled Permanent Magnet Synchronous Generator under Variable Speed Operating Conditions |
| Authors |
차정훈(Junghoon Cha) ; 유원아(Wona Ryoo) ; 이승훈(Seunghoon Lee) ; 김희민(Huimin Kim) |
| DOI |
https://doi.org/10.5370/KIEE.2026.75.9.2093 |
| Keywords |
Finite Element Analysis (FEA); Loading Distribution Method; Permanent Magnet Synchronous Generator (PMSG); Variable Rotational Speed Operation |
| Abstract |
This paper presents the design and performance analysis of a vehicle power-coupled permanent magnet synchronous generator (PMSG) operating under variable rotational speed conditions. To satisfy the output requirements of a vehicle engine driven system, the generator was designed to achieve 20 kW or higher at 500 rpm and 30 kW or higher at 900 rpm, and a voltage 380 Vac at the generator shaft rotational speed of 2100 rpm. In the initial design stage, the loading distribution method was employed to determine the principal design parameters. Electromagnetic finite element analysis using Ansys Maxwell was subsequently conducted to evaluate the no load and load characteristics over the variable speed operating range. Based on the analysis results, a prototype was fabricated and experimentally validated from 500 rpm to 2100 rpm. The experimental results demonstrated that the proposed generator satisfied the required output power and voltage over the entire operating range. The proposed design methodology is expected to provide an effective design approach for vehicle power-coupled PMSG operating under variable speed conditions. |