The invention relates to a method for operating an electric drive system (1) having power electronics (2), in particular an electrical converter, and having an electric machine (3) which can be actuated by means of the power electronics (2), the drive system (1) being operable as an operating mode at least in an operating mode and in a no-load operating mode, the power electronics unit (2) has at least three electrical phases for actuating the electric machine (3), at least one current value of the current of one of the phases being monitored, the current value being compared to a predefined threshold value, and the active short circuit being activated as a safe operating state of the power electronics unit (2) if the current value exceeds the threshold value. According to the invention, the operating mode of the electric drive system (1) is monitored with respect to the presence of an idle operating mode, and a predefined threshold value is lowered to an idle operating threshold value if the presence of an idle operating mode is detected.

    本发明涉及一种用于运行电驱动系统(1)的方法,该电驱动系统具有功率电子器件(2)、尤其电气的变流器,并且具有能通过所述功率电子器件(2)来操控的电机(3),其中,驱动系统(1)能够至少在工作模式中和空载运转模式中作为运行模式运行,其中,功率电子器件(2)具有用于操控电机(3)的至少三个电相位,其中,对相位之一的电流的至少一个电流值进行监测,其中,将电流值与预先给定的阈值进行比较,并且其中,如果电流值超过阈值,则激活主动的短路作为功率电子器件(2)的安全运行状态。设置了,在空载运转模式的存在性方面对电驱动系统(1)的运行模式进行监测,并且如果识别到存在空载运转模式,则将预先给定的阈值降低到空载运转阈值。


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    Title :

    Method for operating electric drive system, computer program product, data carrier, and electric drive system


    Additional title:

    用于运行电驱动系统的方法、计算机程序产品、数据载体和电驱动系统


    Contributors:

    Publication date :

    2024-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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