The invention provides a low-temperature starting method for a vehicle-mounted charger, a charging system, electronic equipment, a readable storage medium and a vehicle, and the method comprises the steps: controlling the vehicle-mounted charger to start at preset output power under a low-temperature working condition; acquiring a PFC bus capacitor voltage ripple actually measured peak-to-peak value; judging whether the actually measured peak-to-peak value of the PFC bus capacitor voltage ripple reaches a preset peak-to-peak value of the PFC bus capacitor voltage ripple; and if not, the vehicle-mounted charger is controlled to gradually increase the output power until the output power of the vehicle-mounted charger reaches the rated output power, so that low-temperature starting of the vehicle-mounted charger is completed. According to the invention, the voltage ripple of the PFC bus capacitor can be ensured to be at an allowable maximum value under a low-temperature working condition, so that the PFC bus capacitor is heated more quickly, the equivalent series impedance of the PFC bus capacitor is reduced more quickly, and the vehicle-mounted charger can realize full-load output more quickly.

    本发明提供了一种车载充电机低温启动方法、充电系统、电子设备、可读存储介质和车辆,该方法包括在低温工况下,控制车载充电机以预设输出功率开始启动;获取PFC母线电容电压纹波实测峰峰值;判断PFC母线电容电压纹波实测峰峰值是否达到PFC母线电容电压纹波预设峰峰值;若否,则控制车载充电机逐渐增大输出功率,直至车载充电机的输出功率达到额定输出功率,以完成车载充电机的低温启动。本发明可以在低温工况下,确保PFC母线电容的电压纹波处于允许的最大值,从而使得PFC母线电容加热更快,继而使得PFC母线电容的等效串联阻抗下降的更快,从而可以使得车载充电机能够更快地实现满载输出。


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    Title :

    Vehicle-mounted charger low-temperature starting method, charging system and vehicle


    Additional title:

    车载充电机低温启动方法、充电系统和车辆


    Contributors:
    WANG YU (author) / LI SHENGCHAO (author) / LI FUGUO (author) / ZOU HUAJIN (author) / CUI YONGSHENG (author)

    Publication date :

    2024-03-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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