{Design of a Wide Input Range DC{&}{\#}x2013;DC Converter With a Robust Power Control Scheme Suitable for Fuel Cell Power Conversion}

Submitted by admin on

Title{Design of a Wide Input Range DC{&}{\#}x2013;DC Converter With a Robust Power Control Scheme Suitable for Fuel Cell Power Conversion}
Publication TypeConference Paper
Year of Publication2008
AuthorsM Todorovic H, Palma L, Enjeti PN
Conference NameIndustrial Electronics, IEEE Transactions on
ISBN Number0278-0046 VO - 55
KeywordsBatteries, Battery, Current control, current-fed two-inductor boost converter topology, DC power conversion, DC-DC converter, DC-DC power converters, DC-DC power convertors, DC{&}{\#}x2013, Energy storage, fuel cell power conversion, Fuel cells, Galvanizing, hybrid power source, power control, power conversion, Robust control, robust power control scheme, supercapacitors, three-level boost converter stage, Topology, Transient response, Voltage control
AbstractIn this paper, an analysis and design of a wide input range dc-dc converter is proposed along with a robust power control scheme. The proposed converter and its control are designed to be compatible with a fuel cell power source, which exhibits 2 : 1 voltage variation as well as a slow transient response. The proposed approach consists of two stages: a three-level boost converter stage cascaded with a current-fed two-inductor boost converter topology, which has a higher voltage gain and provides galvanic isolation from the input source. The function of the front-end boost converter stage is to maintain a constant voltage at the input of the cascaded dc-dc converter to ensure optimal performance characteristics and high efficiency. At the output of the first boost converter, a battery or ultracapacitor energy storage is connected to handle slow transient response of the fuel cell (200 W/min). The robust features of the proposed control system ensure a constant output dc voltage for a variety of load fluctuations, thus limiting the power being delivered by the fuel cell during a load transient. Moreover, the proposed configuration simplifies power management and can interact with the fuel cell controller. Simulation and the experimental results confirm the feasibility of the proposed system.
DOI10.1109/TIE.2007.911200