The invention relates to an excitation circuit (5) for a separately excited synchronous machine (2), comprising two voltage supply connections (18) for voltage supply, two excitation current connections (27) to be connected to excitation windings (25) of the separately excited synchronous machine, and a bridge circuit (19) connected to the voltage supply connections, in particular in the form of an asymmetric full bridge, the excitation circuit also has a control device (34) and, on the excitation current connection (27), a protection device (8) having a semiconductor switch (28) connected in series to the excitation winding (25) and a freewheeling path (30) extending parallel to the excitation winding and having a connection point (33) between the excitation current connection and the semiconductor switch (28), the freewheeling path has a diode (31) blocking in the direction of flow of the excitation current and a switching resistor (32), and the control device (34) is designed to open the semiconductor switch (28) in the presence of a fast de-excitation signal.

    本发明涉及一种用于他励同步电机(2)的励磁电路(5),励磁电路具有用于电压供应的两个电压供应接头(18)、两个待与他励同步电机的励磁绕组(25)连接的励磁电流接头(27)和连接到电压供应接头上的、尤其是非对称全桥形式的桥电路(19),励磁电路还具有控制装置(34),并且在励磁电流接头(27)这方具有保护装置(8),保护装置具有与励磁绕组(25)串联连接的半导体开关(28)和与励磁绕组并行延伸的、在励磁电流接头与半导体开关(28)之间具有连接点(33)的续流路径(30),续流路径具有在励磁电流流动方向上阻断的二极管(31)和转换电阻(32),控制装置(34)被设计用于在存在快速去激励信号的情况下断开半导体开关(28)。


    Access

    Download


    Export, share and cite



    Title :

    Excitation circuit of separately excited synchronous motor, motor vehicle and excitation winding de-excitation method


    Additional title:

    他励同步电机的励磁电路、机动车和励磁绕组去激励方法


    Contributors:

    Publication date :

    2024-03-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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