The invention relates to a converter, a converter control method, a vehicle-mounted charging system and a vehicle. The converter comprises an alternating current transmission port, a power factor correction (PFC) circuit unit, a first filter circuit unit, a resonance circuit unit and a rectification circuit unit, the alternating current transmission port is connected with the power factor correction (PFC) circuit unit, and the alternating current transmission port is used for transmitting an alternating current signal; the power factor correction PFC circuit unit is connected with the first filter circuit unit; the resonance circuit unit is respectively connected with the power factor correction PFC circuit unit and the rectification circuit unit and is used for enabling the converter to work in a frequency conversion state; the rectification circuit unit is used for outputting a rectified direct current signal. The resonant circuit unit can enable the converter to be in a resonant state, so that the converter works in a frequency conversion state. While the total quantity of the power devices is kept unchanged, the power devices have a wider soft switching range, the switching loss of high-frequency devices is reduced, and the working efficiency of the converter is improved.
本公开涉及一种变换器、变换器的控制方法、车载充电系统及车辆。变换器包括:交流电传输端口、功率因素校正PFC电路单元、第一滤波电路单元、谐振电路单元和整流电路单元;交流电传输端口与功率因素校正PFC电路单元相连,交流电传输端口用于传输交流电信号;功率因素校正PFC电路单元和第一滤波电路单元相连;谐振电路单元分别与功率因素校正PFC电路单元和整流电路单元相连,用于使变换器工作在变频状态;整流电路单元用于输出整流后的直流电信号。该谐振电路单元能够使变换器处于谐振状态,进而使变换器工作在变频状态。在保持功率器件总量不变的同时,使得功率器件拥有更宽的软开关范围,降低高频器件的开关损耗,提升变换器的工作效率。
Converter, control method of converter, vehicle-mounted charging system and vehicle
变换器、变换器的控制方法、车载充电系统及车辆
2024-02-23
Patent
Electronic Resource
Chinese
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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