The invention provides a multi-motor control system for engineering machinery, which is characterized in that after a power control unit determines the load grade of a first motor and limits the maximum output torque of the first motor, the rotating speed of the first motor is controlled, and meanwhile, the adjusted actual torque of the first motor is synchronized to a second motor to an Nth motor; the second to Nth motors synchronously adjust self output according to the actual torque of the first motor; the method can be applied to a PID control system of a plurality of motors, can reduce the change of the system on the premise of increasing or reducing the number of motors, and has a wide application range and good expandability. The control and synchronization period between the motors is short, and stable control over the system can be rapidly achieved; and the system has good reliability and economical efficiency.

    本发明提供一种工程机械多电机控制系统,所述动力控制单元确定第一电机的负载等级并限定第一电机的最大输出扭矩后,对第一电机进行转速控制,同时将第一电机调节后的实际扭矩同步到第二至第N电机,第二至第N电机根据第一电机的实际扭矩同步调节自身输出;能够应用于多个电机的PID控制系统,在增加或减少电机的前提下均能够减少对系统的变动,具有广阔的适用范围和良好的可扩展性;电机之间的控制和同步周期短,可快速实现系统的稳定控制;使系统兼有良好的可靠性和经济性。


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    Title :

    Engineering machinery multi-motor control system and control method thereof


    Additional title:

    一种工程机械多电机控制系统及其控制方法


    Contributors:
    JIANG LIMING (author) / SHI FENGLI (author)

    Publication date :

    2024-03-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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