The invention discloses a switching method applied to a charging module transformer winding switching device. A high-frequency transformer, a switching tube, a controller, a driving circuit and a high-frequency inverter circuit are included. Three taps are arranged on the secondary side of the high-high frequency transformer, two taps are connected with switching tubes which are connected in series reversely, and the controller controls the high-frequency inverter circuit and the switching tubes through a driving circuit; and the controller adjusts the control quantity of the high-frequency inverter circuit according to the winding switching proportion, executes a four-step current conversion method at the same time, and controls the switch-on or switch-off of the switching tube, and the winding is switched from high voltage to low voltage or from low voltage to high voltage. According to the invention, flexible seamless switching between windings is realized, peak voltage is eliminated, and the service life of a switching tube is prolonged; the controller judges the directions of the secondary winding currents is1 and is2 according to the control quantity of the high-frequency inverter circuit, the current direction does not need to be judged through a detection circuit, and the circuit structure is simplified; the converter realizes continuous high-power output in different output stages, and the efficiency of the converter is improved.

    本发明公开了一种应用于充电模块变压器绕组切换装置的切换方法,包括高频变压器,开关管,控制器、驱动电路、高频逆变电路。高高频变压器次级侧有三个抽头,其中两路抽头均接有反串联的开关管,控制器通过驱动电路控制高频逆变电路和开关管;控制器根据绕组切换比例调整高频逆变电路控制量,同时执行四步换流方法,控制开关管的导通或关断,绕组由高压到低压或由低压到高压切换。本发明实现了绕组之间柔性无缝切换,消除尖峰电压,延长开关管寿命;控制器根据高频逆变电路的控制量判断次级绕组电流is1、is2的方向,无需利用检测电路判断电流方向,简化电路结构;变换器实现了在不同输出阶段的连续高功率输出,提高变换器的效率。


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    Titel :

    Switching method applied to charging module transformer winding switching device


    Weitere Titelangaben:

    一种应用于充电模块变压器绕组切换装置的切换方法


    Beteiligte:
    FAN JIANHUA (Autor:in) / XU PENGFEI (Autor:in) / LIU YULIN (Autor:in) / LI QINGXIANG (Autor:in) / GAO WENKE (Autor:in) / ZHANG JIAN (Autor:in) / LI WEI (Autor:in) / WU XUEMEI (Autor:in) / LU FENG (Autor:in) / LIN ZHICHAO (Autor:in)

    Erscheinungsdatum :

    27.10.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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 / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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