전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2019년도 전력전자학술대회
- /
- Pages.8-10
- /
- 2019
넓은 입력 전압 범위를 갖는 20kW급 양방향 3상 푸쉬풀 컨버터
A 22kW Bidirectional Three-Phase Push-Pull Converter for Wide Voltage Range Application
- Le, Tat-Thang (Seoul National University of Science and Technology) ;
- Jeong, Hyeonju (Seoul National University of Science and Technology) ;
- Kim, Seon-Ju (Seoul National University of Science and Technology) ;
-
Choi, Sewan
(Seoul National University of Science and Technology)
- 발행 : 2019.07.02
초록
In this paper, a bidirectional three-phase push pull converter is analyzed for the high power, wide voltage range applications. From comparison analysis of two switching methods: PWM plus phase-shift (PPS) and dual-asymmetric PWM (DAPWM) with the effect of dead-time, the proposed hybrid control is aimed to reduce the circulating current under wide voltage range operation. Value of leakage inductance effect to the peak current value, current stress and conduction loss in facing the load variation. Trade-off between power range and slew rate of transformer current was analyzed for properly selecting value of the transformer leakage inductance. Experimental results from a 22-kW prototype are provided to validate the proposed concept.
키워드