The invention discloses a control circuit for wide-voltage-range output of a charging pile. The control circuit is simple in structure and can be used for safely charging and discharging an automobilewith multi-gear rated charging voltage by adopting one machine under the condition of not increasing too much capital investment. The control circuit comprises an input power supply network, a primary side switch network, a primary side resonance network, a primary side transformer, a secondary side transformer, a secondary side resonance network, a secondary side switch network and a power supply output network which are connected in sequence. And a high-low voltage switching network is arranged between the secondary side transformer and the secondary side resonance network, and the high-lowvoltage switching network adjustably outputs 250V-1000V voltage to the power supply output network through the secondary side resonance network and the secondary side switching network. Wide-voltageconstant-power bidirectional charging and discharging conversion can be realized, the circuit is compatible with various mainstream electric vehicles, the power converter works in a narrow switching frequency range through system intelligent identification and flexible switching, the loss of each power device in the converter is reduced, and the system efficiency and the reliability of the converter are improved.

    一种结构简单且能够在不增加太多资金投入的情况下,采用一台机即可为多档位额定充电电压的汽车进行安全充放电的用于充电桩宽电压范围输出的控制电路。包括依次相接的输入电源网络、原边开关网络、原边谐振网络、原边变压器、副边变压器、副边谐振网络、副边开关网络和电源输出网络,在副边变压器与副边谐振网络之间设有高低压切换网络,该高低压切换网络通过副边谐振网络和副边开关网络可调节的向电源输出网络输出250V‑1000V的电压。其可实现宽电压恒功率双向充放电变换,兼容各主流电动车型,通过系统智能识别,灵活切换,实现电源变换器工作在较窄的开关频率范围内,降低变换器内部各功率器件损耗,提升系统效率与变换器的可靠性。


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    Title :

    Control circuit for wide-voltage-range output of charging pile


    Additional title:

    用于充电桩宽电压范围输出的控制电路


    Contributors:
    HUANG SHURUI (author) / LU YUNCHU (author) / ZHAN JINTONG (author)

    Publication date :

    2020-10-16


    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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