The invention provides a vehicle-mounted motor noise suppression method with out-of-control protection, and the method is characterized in that the method comprises the steps: obtaining a harmonic current under an expected noise order, and decomposing the harmonic current into a positive sequence axis harmonic component and a negative sequence axis harmonic component; inquiring a noise suppression current instruction list of each order, and converting a noise suppression current instruction corresponding to the obtained expected noise order into positive and negative sequence axis instruction alternating and direct current four-axis components; subtraction is carried out on the positive-sequence-axis instruction alternating-current and direct-current components and the positive-sequence-axis harmonic component, subtraction is carried out on the negative-sequence-axis instruction alternating-current and direct-current components and the negative-sequence-axis harmonic component, and the obtained difference value is converted into positive-sequence alternating-axis and negative-sequence direct-axis four-axis voltage output quantity; and after first voltage amplitude limiting is carried out on the voltage output quantity, reversely adjusting the instruction current amplitude obtained by table look-up, and after second voltage amplitude limiting is carried out on the voltage output quantity, summarizing and injecting into a vehicle-mounted motor control main loop. According to the method, effective noise suppression can be achieved, the noise suppression out-of-control protection function is achieved, and the comfort level of the environment in the vehicle is effectively improved.

    本发明提供一种具有失控保护的车载电机噪音抑制方法,其特征在于,包括:获得期望噪音阶次下的谐波电流并分解为正序轴谐波分量和负序轴谐波分量;查询各阶次噪音抑制电流指令表,将得到的期望噪音阶次对应的噪音抑制电流指令转换为正、负序轴指令交、直流四轴分量;将正序轴指令交、直流分量与正序轴谐波分量作差,将负序轴指令交、直流分量与负序轴谐波分量作差,得到的差值转换为正、负序交、直轴四轴电压输出量;对电压输出量进行第一次电压限幅后反向调节查表得到的指令电流幅值,对电压输出量进行第二次电压限幅后汇总注入车载电机控制主回路。本发明方法可实现噪音有效抑制,且具有噪音抑制失控保护功能,有效提升车内环境的舒适度。


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    Title :

    Vehicle-mounted motor noise suppression method with out-of-control protection


    Additional title:

    一种具有失控保护的车载电机噪音抑制方法


    Contributors:
    HAN GANG (author) / LIU CUNHAO (author)

    Publication date :

    2024-05-07


    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



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