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Isolated Boost Converter with Bidirectional Operation for Supercapacitor Applications
Juan C. Hernandez,Maria C. Mira,Gokhan Sen,Ole C. Thomsen,Michael A. E. Andersen 전력전자학회 2013 JOURNAL OF POWER ELECTRONICS Vol.13 No.4
This paper presents an isolated bidirectional dc/dc converter based on primary parallel isolated boost converter (PPIBC). This topology is an efficient solution in low voltage high power applications due to its ability to handle high currents in the low voltage side. In this paper, the converter has been modeled using non-ideal components and operated without any additional circuitry for startup using a digital soft-start procedure. Simulated and measured loop gains have been compared for the validity of the model. On-the-fly current direction change has been achieved with a prototype interconnecting two battery banks. A second prototype has been constructed and tested for supercapacitor operation in constant power charge mode.
Isolated Boost Converter with Bidirectional Operation for Supercapacitor Applications
Hernandez, Juan C.,Mira, Maria C.,Sen, Gokhan,Thomsen, Ole C.,Andersen, Michael A.E. The Korean Institute of Power Electronics 2013 JOURNAL OF POWER ELECTRONICS Vol.13 No.4
This paper presents an isolated bidirectional dc/dc converter based on primary parallel isolated boost converter (PPIBC). This topology is an efficient solution in low voltage high power applications due to its ability to handle high currents in the low voltage side. In this paper, the converter has been modeled using non-ideal components and operated without any additional circuitry for startup using a digital soft-start procedure. Simulated and measured loop gains have been compared for the validity of the model. On-the-fly current direction change has been achieved with a prototype interconnecting two battery banks. A second prototype has been constructed and tested for supercapacitor operation in constant power charge mode.
Qingnan Li,Michael A. E. Andersen,Ole C. Thomsen 전력전자학회 2011 ICPE(ISPE)논문집 Vol.2011 No.5
Nowadays, efficiency and power density are the most important issues for Power Factor Correction (PFC) converters development. However, it is a challenge to reach both high efficiency and power density in a system at the same time. In this paper, taking a Bridgeless PFC (BPFC) as an example, a useful compromise between efficiency and power density of the Boost inductors on 3.2㎾ is achieved using an optimized design procedure. The experimental verifications based on the optimized inductor are carried out from 300W to 3.2㎾ at 220Vac input.