Proceedings ArticleDOI
Bi-directional DC to DC converters for fuel cell systems
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TLDR
In this article, the need of a bi-directional DC to DC converter for a fuel cell system was described, and various combinations of current-fed and voltage-fed converters were explored for the application of different voltage levels.Abstract:
This paper first describes the need of a bi-directional DC to DC converter for a fuel cell system. Various combinations of current-fed and voltage-fed converters are explored for the application of different voltage levels. With a preliminary study, putting current-fed on low-voltage side and voltage fed on high voltage side indicated higher efficiency than the other way around. Two low-side circuit topologies were then selected for hardware implementation. One is the L-type half-bridge current-fed converter, and the other is full-bridge current-fed converter. The high-side circuit topology is fixed with a full-bridge voltage-fed converter. Two systems were built and tested to full power. The results indicate that the combination with the full-bridge converter on the low-voltage side is more efficient than the combination with the L-type half-bridge converter on the low-voltage side for both charging and discharging modes.read more
Citations
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Journal ArticleDOI
Overview of Dual-Active-Bridge Isolated Bidirectional DC–DC Converter for High-Frequency-Link Power-Conversion System
TL;DR: In this paper, the dual-active-bridge (DAB) isolated bidirectional dc-dc converter (IBDC) serves as the core circuit of high frequency-link (HFL) power conversion systems.
Journal ArticleDOI
A new ZVS bidirectional DC-DC converter for fuel cell and battery application
TL;DR: In this paper, a new zero-voltage-switching (ZVS) bidirectional dc-dc converter is proposed for medium and high power applications especially for auxiliary power supply in fuel cell vehicles and power generation where the high power density, low cost, lightweight and high reliability power converters are required.
Journal ArticleDOI
Family of multiport bidirectional DC¿DC converters
TL;DR: In this paper, a family of multiport bidirectional DC-DC converters derived from a general topology is presented, showing a combination of DC-link and magnetic coupling.
Journal ArticleDOI
Three-Port Bidirectional Converter for Hybrid Fuel Cell Systems
TL;DR: In this paper, a hybrid fuel cell/battery system is proposed to improve the slow transient response of a fuel cell stack, which can be used for an autonomous device with quick load variations.
Journal ArticleDOI
Industrial Electronics for Electric Transportation: Current State-of-the-Art and Future Challenges
TL;DR: The paper deals with industry related EV energy storage system issues, EV charging issues, as well as power electronics and traction motor drives issues, and various EV propulsion system architectures and efficient bidirectional DC/DC converter topologies.
References
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Patent
Power conversion apparatus for DC/DC conversion using dual active bridges
TL;DR: In this paper, active gate controlled switching devices are used to switch between input and output in a soft-switched manner to minimize switching losses and increase switching frequency for high power applications.
Journal ArticleDOI
Zero voltage and zero current switching full bridge PWM converter using secondary active clamp
TL;DR: In this paper, a new zero voltage and zero current switching (ZVZCS) full bridge (FB) PWM converter is proposed to improve the performance of the previously presented ZZCS-FB-PWM converters.
Proceedings ArticleDOI
A novel control principle of bi-directional DC-DC power conversion
TL;DR: In this paper, a novel control method for DC-DC power converters with bi-directional power flow and galvanic isolation is presented, where a high efficiency is achieved by using a minimal number of power electronic devices working in the soft switching mode.