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Energies 2018, 11(12), 3327;

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

Department of mechatronics and electronics, Faculty of electrical engineering, University of Zilina, 01026, Zilina, Slovakia
Author to whom correspondence should be addressed.
Received: 6 November 2018 / Revised: 23 November 2018 / Accepted: 26 November 2018 / Published: 28 November 2018
(This article belongs to the Section Electrical Power and Energy System)
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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. View Full-Text
Keywords: resonant converter; efficiency; redundancy; reliability; control strategy resonant converter; efficiency; redundancy; reliability; control strategy

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Frivaldsky, M.; Spanik, P.; Morgos, J.; Pridala, M. Control Strategy Proposal for Modular Architecture of Power Supply Utilizing LCCT Converter. Energies 2018, 11, 3327.

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