Control of Dual-Output DC/DC Converters Using Duty Cycle and Frequency
| Autor: | Yoshinori Matsushita, Makoto Ishii Ishii, Noritaka Taguchi Taguchi, Kazuki Shimizu, Toshihiko Noguchi Noguchi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
pulse width and frequency control
Materials science Automatic frequency control 02 engineering and technology auxiliary power source law.invention 0203 mechanical engineering law DC/DC converter Diode bridge 0202 electrical engineering electronic engineering information engineering Hardware_INTEGRATEDCIRCUITS Transformer dual output Electronic circuit business.industry 020208 electrical & electronic engineering Electrical engineering lcsh:TA1001-1280 020302 automobile design & engineering Converters Duty cycle frequency Automotive Engineering duty cycle Inverter lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Transportation engineering business lcsh:TK1-9971 Voltage |
| Zdroj: | World Electric Vehicle Journal, Vol 11, Iss 72, p 72 (2020) World Electric Vehicle Journal Volume 11 Issue 4 |
| ISSN: | 2032-6653 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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