Modelling and ZVS control of an isolated three-phase bidirectional AC-DC converter
Felix Jauch,Jurgen Biela +1 more
- pp 1-11
TLDR
An isolated three-phase bidirectional AC-DC converter with a novel modulation strategy that enables Zero-Voltage-Switching (ZVS) for all switches over the whole AC line period is presented.Abstract:
This paper presents an isolated three-phase bidirectional AC-DC converter with a novel modulation strategy that enables Zero-Voltage-Switching (ZVS) for all switches over the whole AC line period. The AC-DC converter allows the direct coupling of a three-phase AC system with a DC port applying a single high-frequency transformer. A novel modelling approach for the power flows and the derivation of the control variables under ZVS conditions are provided. The design of components including loss models and simulation results of a 11kW electric vehicle battery charger to connect to the 230Vrms, 50Hz mains considering a battery voltage range of 380V to 540V validate the theoretical analysis.read more
Citations
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Global Trends in High-Power On-Board Chargers for Electric Vehicles
TL;DR: A summary of global charging standards and electric vehicle (EV) related trends are presented, which demonstrates momentum toward the OBCs with higher power rating.
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Modulation Strategy for a Single-Stage Bidirectional and Isolated AC–DC Matrix Converter for Energy Storage Systems
TL;DR: Experimental tests developed in this paper show the capability of controling the grid currents in the synchronous reference frame in order to provide grid services, which makes this matrix converter ideal for battery charging of electric vehicles and energy storage applications.
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A Modular-Designed Three-Phase High-Efficiency High-Power-Density EV Battery Charger Using Dual/Triple-Phase-Shift Control
Juncheng Lu,Kevin Bai,Allan Taylor,Guanliang Liu,Alan Brown,Philip Michael Johnson,Matt McAmmond +6 more
TL;DR: In this article, an enhancement-mode GaN high-electron mobility transistor (HEMT)-based 7.2-kW single-phase charger was built, which employs the dc/dc stage to control the power factor and power delivery simultaneously, yielding little dc-bus capacitance and thereby high power density.
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Applying Variable-Switching-Frequency Variable-Phase-Shift Control and E-Mode GaN HEMTs to an Indirect Matrix Converter-Based EV Battery Charger
Juncheng Lu,Guanliang Liu,Hua Bai,Alan Brown,Philip Michael Johnson,Matt McAmmond,Allan Taylor +6 more
TL;DR: In this paper, a variable switching frequency with multiple phase shifts was adopted to accommodate the wide input range (80 −260 $V{α, β, dc} and output range (200 V −450 $V_{β, dc, dc}) of an on-board charger.
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A Reduced Switch Count Single-Stage Three-Phase Bidirectional Rectifier With High-Frequency Isolation
TL;DR: The analysis of all the operating modes of the converter is presented, resulting in the analytical estimation of power transfer and rms winding current and investigation of soft-switching conditions for the power devices.
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Journal ArticleDOI
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