A Novel Converter System for Fuel Cell Distributed Energy Generation

Attanasio, R.; Cacciato, M.; Consoli, A.; Scarcella, G.; Testa, A.; Gennaro, F.

doi:10.1109/pesc.2005.1581847

Cited by 15 publications

(3 citation statements)

References 5 publications

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“…Other circuit components (power inductors or capacitors) are small because of the use of very high-frequency operation. This approach results in a decrease of overall volume and costs [14]. The input and output parameters for the converter design are listed in Table IV.…”

Section: Gan Transistor Implementation Within Proposedmentioning

confidence: 99%

Evaluation of GaN Power Transistor Switching Performance on Characteristics of Bidirectional DC-DC Converter

Frivaldský

Morgos

Zelnik

2020

ELEKTRON ELEKTROTECH

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The paper deals with the experimental analysis of the switching performance of selected GaN (Galium Nitride) power transistor, whose use is then expected in bidirectional buck/boost DC-DC converter. The switching performance was evaluated through highly accurate and verified simulation models of GS61008P transistor from GaN systems. Experiments have been provided for a wide spectrum of switching frequency and load current in order to verify transistor performance. Then, based on the results, it was expected that high-frequency operation (above 500 kHz) should not distort the efficiency performance of the designed bidirectional converter. This was confirmed after laboratory measurements of the efficiency of the proposed DC-DC converter, while operation under very high switching frequency was more effective compared to low-frequency operation. Over 95 % of efficiency was achieved for both buck and boost mode (125 W), even switching frequency was above 500 kHz.

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Section: Gan Transistor Implementation Within Proposedmentioning

confidence: 99%

Evaluation of GaN Power Transistor Switching Performance on Characteristics of Bidirectional DC-DC Converter

Frivaldský

Morgos

Zelnik

2020

ELEKTRON ELEKTROTECH

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“…The increasing penetration of renewable energy resources and new sizeable loads, such as electric vehicle (EV) charging stations, has posed many technical and operational challenges in the distribution grids [11,12]. Encouraged by attractive tariffs and promotional policies, the end-consumers in the local grids are not only consumers of electricity but in many cases also producers.…”

Section: Introductionmentioning

confidence: 99%

System Level Simulation of Microgrid Power Electronic Systems

et al. 2021

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In this paper, we describe a procedure for designing an accurate simulation model using a price-wised linear approach referred to as the power semiconductor converters of a DC microgrid concept. Initially, the selection of topologies of individual power stage blocs are identified. Due to the requirements for verifying the accuracy of the simulation model, physical samples of power converters are realized with a power ratio of 1:10. The focus was on optimization of operational parameters such as real-time behavior (variable waveforms within a time domain), efficiency, and the voltage/current ripples. The approach was compared to real-time operation and efficiency performance was evaluated showing the accuracy and suitability of the presented approach. The results show the potential for developing complex smart grid simulation models, with a high level of accuracy, and thus the possibility to investigate various operational scenarios and the impact of power converter characteristics on the performance of a smart gird. Two possible operational scenarios of the proposed smart grid concept are evaluated and demonstrate that an accurate hardware-in-the-loop (HIL) system can be designed.

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“…The common approach is to use a resistive shunt, but this solution decreases efficiency, particularly in high-current low-voltage applications [24][25][26][27]. Different modular topologies have been explored in the past aimed mainly to reduce the need of having long strings of PV panels [28,29]. However, for the case of other applications, long stacks of cells are not avoidable.…”

Section: Introductionmentioning

confidence: 99%

Control Strategy Proposal for Modular Architecture of Power Supply Utilizing LCCT Converter

et al. 2018

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Following the invention of resonant power converters, lots of new topologies with significant improvements considering increase of efficiency and power density are arising. The main differences are related to the configuration of the resonant tank structure. In this paper, LCCT topology is proposed, while main aim is focused on the application of the modular architecture of power supply (MAPS) systems. Initially, principal analysis is given which describes basic features and components selection of LCCT resonant converter. After principal analysis, the application is oriented for above mentioned modular architecture of power supply, where more than one LCCT converter operated simultaneously is considered. The main asset within the presented system investigation is the proposal for the control strategy of the modular power supply system. Instead of the requirement on the most efficient operation within the whole operational power range of MAPS, the proposal for control strategy is given, while it is expected that each module of MAPS will be loaded evenly. The control strategy is based on the digital control, whereby sequential switching of the individual power stages is autonomous based on the information’s of the actual power load. Presented solution gives improvements of the parameters where extended range of input voltage, extended range of output power, flat characteristic of efficiency, and lower ripple current and/or voltage will be required.

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A Novel Converter System for Fuel Cell Distributed Energy Generation

Cited by 15 publications

References 5 publications

Evaluation of GaN Power Transistor Switching Performance on Characteristics of Bidirectional DC-DC Converter

Evaluation of GaN Power Transistor Switching Performance on Characteristics of Bidirectional DC-DC Converter

System Level Simulation of Microgrid Power Electronic Systems

Control Strategy Proposal for Modular Architecture of Power Supply Utilizing LCCT Converter

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