LLC 공진형 컨버터 기반 리튬이온 배터리 충전기의 통합 전류-전압 보상기 설계방법 연구Design of an Integrated Current-Voltage Charging Compensator for the LLC Resonant Converter-Based Li-ion Battery Charger
- Other Titles
- Design of an Integrated Current-Voltage Charging Compensator for the LLC Resonant Converter-Based Li-ion Battery Charger
- Authors
- 최영준; 최시영; 김래영
- Issue Date
- Apr-2017
- Publisher
- 전력전자학회
- Keywords
- LLC resonant converter; Battery charger; Integrated compensator; CC-CV charging profile
- Citation
- 전력전자학회 논문지, v.22, no.2, pp.126 - 133
- Indexed
- KCI
- Journal Title
- 전력전자학회 논문지
- Volume
- 22
- Number
- 2
- Start Page
- 126
- End Page
- 133
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/152556
- DOI
- 10.6113/TKPE.2017.22.2.126
- ISSN
- 1229-2214
- Abstract
- The conventional battery charger requires two separate voltage and current compensators to achieve constant current and constant-current-charging profile. This compensator configuration leads to an inevitable transient response during the mode change between the constant current and the constant voltage operation. Futhermore, a tedious and complicated design process is required to consider a widely changing battery voltage and the nonlinear electrical properties of Li-ion battery. This study proposes a single integrated voltage–current compensator of the LLC resonant converter for Li-ion battery charger applications to overcome the aforementioned drawbacks. The proposed compensator is designed to provide a smooth and reliable performance during the entire charging process while providing the reduced design efforts and seamless mode transient response. Several experimental results based on a 300 W prototype converter and its theoretical analysis are provided to verify the effectiveness of the proposed compensator.
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