Design of a high efficiency 30 kW boost composite converter [electronic resource].
- Washington, D.C. : United States. Office of the Assistant Secretary of Energy Efficiency and Renewable Energy, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Additional Creators:
- University of Colorado Boulder
United States. Office of the Assistant Secretary of Energy Efficiency and Renewable Energy
United States. Department of Energy. Office of Scientific and Technical Information
- An experimental 30 kW boost composite converter is described in this paper. The composite converter architecture, which consists of a buck module, a boost module, and a dual active bridge module that operates as a DC transformer (DCX), leads to substantial reductions in losses at partial power points, and to significant improvements in weighted efficiency in applications that require wide variations in power and conversion ratio. A comprehensive loss model is developed, accounting for semiconductor conduction and switching losses, capacitor losses, as well as dc and ac losses in magnetic components. Based on the developed loss model, the module and system designs are optimized to maximize efficiency at a 50% power point. Experimental results for the 30 kW prototype demonstrate 98.5%peak efficiency, very high efficiency over wide ranges of power and voltage conversion ratios, as well as excellent agreements between model predictions and measured efficiency curves.
- Published through SciTech Connect.
IEEE Energy Conversion Conference and Expo, Montreal CA, Sept 20-24 2015.
Kim, Hyeokjin; Chen, Hua; Maksimovic, Dragan; Erickson, Robert.
- Funding Information:
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