High-Efficiency Fuel-Cell Power Inverter With Soft-Switching Resonant Technique

Wai, Rong‐Jong; Duan, Rou-Yong; Lee, Jeng-Dao; Liu, Liwei

doi:10.1109/tec.2004.832092

Cited by 26 publications

(8 citation statements)

References 21 publications

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“…Similarly, the average dc link voltage during one switching period is described by (6), which is equal to the C 2 voltage.…”

Section: Operating Principles and Circuit Analysismentioning

confidence: 99%

“…The proposed front-end dc-dc converters are classified as boost converters [3]- [5], push-pull converters [6], [7], half bridge converters [8], fullbridge converters [9]- [16], wide input and high step-up dcdc converters [17], [18] or a LLC resonant converter [19]. In addition, conventional hard switching inverters [11], [12], [14], soft-switching inverters [6], [15] and high frequency link inverters [3], [4] have been presented as dc-ac inverters for PCSs. However, in the multi-stage topologies, it is not easy to achieve low cost and high efficiency due to the large number of power switches and the multiple electric energy processing.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Isolated Soft-Switching Bidirectional Buck-Boost Inverter for Fuel Cell Applications

Zhang¹,

Xu²,

Chen³

et al. 2010

Journal of Power Electronics

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This paper presents a new isolated soft-switching bidirectional buck-boost inverter for fuel cell applications. The buckboost inverter combines an isolated DC-DC converter with a conventional inverter to implement buck-boost DC-DC and DC-AC conversion. The main switches achieve zero voltage switching and zero current switching by using a novel synchronous switching SVPWM and the volume of the transformer in the forward and fly-back mode is also minimized. This inverter is suitable for wide input voltage applications due to its high efficiency under all conditions. An active clamping circuit reduces the switch's spike voltage and regenerates the energy stored in the leakage inductance of the transformer; therefore, the overall efficiency is improved. This paper presents the operating principle, a theoretical analysis and design guidelines. Simulation and experimental results have validated the characteristics of the buck-boost inverter.

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“…Similarly, the average dc link voltage during one switching period is described by (6), which is equal to the C 2 voltage.…”

Section: Operating Principles and Circuit Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Isolated Soft-Switching Bidirectional Buck-Boost Inverter for Fuel Cell Applications

Zhang¹,

Xu²,

Chen³

et al. 2010

Journal of Power Electronics

View full text Add to dashboard Cite

show abstract

“…In many applications, specific power converters have been designed to enhance the system efficiency and extend its operating range (e.g. voltage-clamping and resonant soft-switching [6]). Abridging, a wide range of linear control solutions that efficiently solve different control objectives have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Multi input sliding mode control of an autonomous fuel cell-supercapacitor hybrid system

Moré

Puleston

Kunusch

et al. 2012

2012 12th International Workshop on Variable Structure Systems

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Abstract-This paper presents the design of a sliding mode control strategy through an input decoupling of an hybrid fuel cell based system. The hybrid system is composed by a fuel cell stack and a Supercapacitors module, connected to a single DC bus. A continuous conduction mode MIMO model is considered and the control strategy for the system is discussed. The latter is developed using a diffeomorphism to decouple the control inputs to surface interactions. Finally, an adaptive switching function for the two inputs is designed to robustly reject system perturbations and parameters variations. The control strategy is then evaluated through extensive simulation, considering strong load demand variations.

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“…One of its characteristics is that the instantaneous output voltage is always lower than the dc input. In applications with low and varied input voltages, such as distributed power generation (DG) systems, a boost type DC-DC converter is often added in front of the VSI to step up the dc input voltage [1]- [3]. However, the traditional boost converter may not be able to provide enough dc voltage gain even for an extreme duty cycle.…”

Section: Introductionmentioning

confidence: 99%

High step-up single-stage boost inverter

Zhou

Zhao

Huang

et al. 2011

2011 IEEE Energy Conversion Congress and Exposition

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This paper presents a high step-up single-stage boost inverter. The basic topology is known in the literature as a Zsource inverter (ZSI). The ZSI has the ability of buck-boost conversion. No dead time is needed in phase legs, so high reliability can be achieved. Alternative impedance network which can achieve higher step-up performance compared to traditional ZSI is presented. A comparison between the new and traditional single-stage inverter is performed. The advantage over ZSI of the new inverter is its ability to improve the voltage boost inversion performance. In addition, the voltage buck-boost inversion ability is also provided by proposed converter when turn ratio of the coupled inductor is unit. The circuit operation principle is analyzed in detail. Simulation and experimental results are shown to verify the correctness and effectiveness.

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High-Efficiency Fuel-Cell Power Inverter With Soft-Switching Resonant Technique

Cited by 26 publications

References 21 publications

An Isolated Soft-Switching Bidirectional Buck-Boost Inverter for Fuel Cell Applications

An Isolated Soft-Switching Bidirectional Buck-Boost Inverter for Fuel Cell Applications

Multi input sliding mode control of an autonomous fuel cell-supercapacitor hybrid system

High step-up single-stage boost inverter

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