Author:
Matsushita Yoshinori,Noguchi Toshihiko,Shimizu Kazuki,Taguchi Noritaka,Ishii Makoto
Abstract
As part of the integration process of the auxiliary power systems of electric vehicles, plug-in hybrid vehicles and fuel cell vehicles, this study proposes a method to control two different voltage types using two control factors of the rectangular alternating waveforms contained in DC/DC converters, namely the duty cycle and frequency. A prototype circuit consisting of an H-bridge inverter, a transformer, two series resonant filters and two diode bridge circuits was constructed. The H-bridge inverter was connected to the primary side of the transformer and the diode bridge rectifier circuit was connected to the secondary side in parallel. Series resonant filters were inserted between one of the diode bridge circuits and the transformer. Thereafter, the proposed control method was applied to the transformer voltage of the prototype circuit. Although the circuit operation became complex owing to the circulating current flowing between the ground (GND) of the two output circuits, it exhibited ideal static and dynamic characteristics, thereby confirming the possibility of controlling two voltages with the duty cycle and frequency control factors. The results of the efficiency evaluation and loss analysis demonstrated a minimum efficiency of 68.3% and a maximum efficiency of 88.9%. As the output power of the circuit containing the resonant filters increased, the current peak value increased and the circuit became less efficient.
Reference21 articles.
1. CO2 Emissions from Fuel Combustion: Overviewhttps://www.iea.org/reports/co2-emissions-from-fuel-combustion-overview
2. Global EV Outlook 2020https://www.iea.org/reports/global-ev-outlook-2020
3. Efficiency-Optimized High-Current Dual Active Bridge Converter for Automotive Applications
4. Estimation of the Effects of Auxiliary Electrical Loads on Hybrid Electric Vehicle Fuel Economy;Rhodes,2017
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献