The invention relates to the technical field of electric vehicle charging control systems, in particular to a transformer-controlled double-path charging circuit. The circuit comprises an a-end conversion circuit, a b-end conversion circuit, a c-end conversion circuit and a transformer T for connecting the three circuits, the invention further discloses a control method of the transformer-controlled double-path charging circuit. The method comprises the following steps: S1, the controller compares the b-end output voltage and the b-end output current with given output values respectively; andobtaining a result value by inputting a result into a three-pole three-zero-point digital compensator network, wherein the value changes the switching period of an a-end power switch tube and is usedfor controlling the on-off of a first group of power switches Q1 and Q4 and a second group of power switches Q2 and Q3 respectively. The voltage of the two ports can be flexibly controlled by one transformer, the voltage regulation is accurate, and the anti-interference capability is strong; and meanwhile, the circuit has the advantages of small size, low cost and light weight.

    本发明涉及电动汽车整车充电控制系统技术领域,具体为一种一个变压器控制的双路充电电路,包括a端转换电路、b端转换电路、c端转换电路、以及连接这三个电路的变压器T,本发明还公布了一种一个变压器控制的双路充电电路的控制方法,包括以下步骤:S1:所述控制器将b端输出电压和输出电流与分别与给定的输出值进行比较后,输入到三极三零点的数字补偿器网络,这里会得到一个结果值,这个值改变a端功率开关管的开关周期,分别用以控制第一组功率开关Q1、Q4和第二组功率开关Q2、Q3的通断;本发明采用一个变压器即可灵活的控制两个端口的电压,调压精确,抗干扰能力强;同时具有体积小、成本低、重量轻的优点。


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    Titel :

    Transformer-controlled double-path charging circuit and control method thereof


    Weitere Titelangaben:

    一种一个变压器控制的双路充电电路及其控制方法


    Beteiligte:
    YANG HONGMING (Autor:in) / CHEN ZHENWEN (Autor:in) / XUAN YUYING (Autor:in)

    Erscheinungsdatum :

    2020-10-13


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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