The invention provides an energy conversion system, a charging and discharging control method and a heating control method of a vehicle. The system comprises two groups of multiphase inverters of an electric drive system, at least one group of multiphase windings, a first capacitor, a second capacitor and a controller, a bus of the first group of multi-phase inverters is connected with the battery and the first capacitor in parallel, a bus of the second group of multi-phase inverters is connected with the second capacitor and the external equipment in parallel, the bus of the second group of multi-phase inverters is in on-off connection with the external equipment through the first switch, and the first group of multi-phase inverters and the second group of multi-phase inverters are connected through at least one pole of bus. The at least one group of multi-phase windings is correspondingly connected to the midpoints of the bridge arms of the two groups of multi-phase inverters respectively; one pole between the battery and the external equipment is directly connected through the second switch in an on-off manner; and the controller is connected to the first switch, the second switch and the two groups of multi-phase inverters so as to control the on-off of the first switch and drive the two groups of multi-phase inverters to act, so that the buck-boost charging and discharging of the vehicle or the battery heating of the vehicle is realized.

    本发明提供一种车辆的能量转化系统、充放电控制方法及加热控制方法,该系统包括:电驱系统的两组多相逆变器、至少一组多相绕组、第一电容、第二电容和控制器;第一组多相逆变器的母线与电池和第一电容并联,第二组多相逆变器的母线与第二电容和外部设备并联,且第二组多相逆变器的母线与外部设备通过第一开关可通断连接,第一组多相逆变器与第二组多相逆变器之间至少一极母线连接,至少一组多相绕组分别对应连接于两组多相逆变器的桥臂中点;电池与外部设备之间的一极通过第二开关可通断地直接连接;控制器连接于第一开关、第二开关和两组多相逆变器,以控制第一开关通断及驱动两组多相逆变器动作,以实现车辆的升降压充放电或车辆的电池加热。


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    Title :

    Energy conversion system, charging and discharging control method and heating control method of vehicle


    Additional title:

    车辆的能量转化系统、充放电控制方法及加热控制方法


    Contributors:
    ZHOU DAIPING (author) / WANG SHUN (author) / YE NAN (author) / WANG KAI (author) / BI LU (author)

    Publication date :

    2025-02-14


    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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