비시변 시비율 전달함수 구현에 의한 양방향 충전기 제어특성 개선

다국어 초록 (Multilingual Abstract)

In this paper, we implement a non-time-varying transfer function of the duty ratio to improve the control characteristics in a control system that Input voltage and the output voltage is varied, DC / DC converters for bi-directional charging. When control is performed with using controller gain of conventional design, characteristics of the control is varied to fluctuations of the input voltage. The proposed method is the equivalently removing method for duty ratio in entire control block, by voltage controller gain is changed for inverse of the duty ratio. The proposed non-time-varying duty ratio transfer function is applied to DC / DC converter for bi-directional charging. In this paper, feasibility and superiority is verified through PSIM simulations and experiments.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 충전기의 일반적인 특성
• 3. 배터리 충전 방법
• 4. 배터리 등가회로
• 5. 고성능 충전기의 구성
• 6. 제안하는 제어기 구성
• 7. 시뮬레이션
• 8. 전류 보상기 적용
• 9. 시뮬레이션 결과
• 10. 프로토타입 제작
• 11. 실험결과
• 12. 결론
• References

참고문헌 (Reference)

1 윤수영, "전기자동차용 배터리 충전기" 전력전자학회 15 (15): 460-465, 2010

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6 David Linden, "Handbook of Batteries and Fuel Cells" McGraw Hill 1984

7 The Korean Institute of Power Electronics, "Green Car electric power system power electronic circuits" The Korean Institute of Power Electronics 2010

8 Young-Chang Jo, "Digital Voltage Controller Design for the Bi-directional DC - DC Converter during Mode Change" 6-8, 2010

9 박선재, "Controller Design of a Novel Power Conditioning System with an Energy Storage Device for Renewable Energy Sources under Grid-Connected Operation" 전력전자학회 13 (13): 390-399, 2013