The invention provides a vehicle-mounted charger and an output ripple suppression method thereof, and relates to the field of power supplies, and bus voltage ripple components, namely 2 times of power frequency ripples generated on a bus capacitor due to alternating current input, are added to a control loop of a resonant converter according to a certain proportion, so that the output ripple of the vehicle-mounted charger is suppressed. Therefore, the influence of the bus voltage ripple component on the output voltage Vo and the output current Io of the resonant converter can be suppressed, and the ripples of the output voltage Vo and the output current Io are as small as possible.
本发明提出一种车载充电机及其输出纹波抑制方法,涉及电源领域,通过将母线电压纹波分量,也即因交流输入在母线电容上产生的2倍工频纹波,以一定比重添加到谐振变换器的控制环路上,因此可抑制母线电压纹波分量对谐振变换器输出电压Vo和输出电流Io的影响,使输出电压Vo和输出电流Io的纹波尽量小。
Vehicle-mounted charger and output ripple suppression method thereof
车载充电机及其输出纹波抑制方法
2022-10-11
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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