The invention provides a second-order high-pass filter. The second-order high-pass filter comprises a filter capacitor module, a filter inductor module and a filter resistor module, the filter inductor module is connected in parallel with the filter resistor module, and the filter capacitor module is connected in series with the filter inductor module and the filter resistor module; by setting parameters of a filter capacitor module, a filter inductor module and a filter resistor module of the second-order high-pass filter, the resonant frequency of the second-order high-pass filter is n < omega >, n is the order of current harmonics needing to be filtered, and omega is harmonic angular frequency. The second-order high-pass filter presents a low-impedance characteristic when the frequency is higher than a specific frequency, and presents a high-impedance characteristic when the frequency is lower than the specific frequency, so that most of current harmonics of the specific frequency of the permanent magnet synchronous motor flow through the filter device; therefore, the purpose of reducing the torque pulsation and electromagnetic vibration noise of the second-order high-pass filter is achieved.

    本发明提供一种二阶高通滤波器,包括滤波电容模块、滤波电感模块和滤波电阻模块;所述滤波电感模块与滤波电阻模块并联连接,滤波电容模块与滤波电感模块和滤波电阻模块串联连接;通过对所述二阶高通滤波器的滤波电容模块、滤波电感模块和滤波电阻模块的参数设置,使得所述二阶高通滤波器的谐振频率为nω,其中n为所需要滤除电流谐波的阶次,ω为谐波角频率。本发明的二阶高通滤波器在高于特定频率时装置呈现低阻抗特性,在低于特定频率时装置呈现高阻抗特性,使得永磁同步电机的特定频率的电流谐波大部分从滤波器装置流过,从而达到减小二阶高通滤波器转矩脉动和电磁振动噪音的目的。


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    Title :

    Second-order high-pass filter and permanent magnet synchronous motor current harmonic suppression control system


    Additional title:

    二阶高通滤波器及永磁同步电机电流谐波抑制控制系统


    Contributors:
    CHEN ZHIBO (author) / LIU YUBING (author) / CAI XIAOHUA (author) / LI BAOJUN (author) / GUO JINKAI (author)

    Publication date :

    2024-02-27


    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 / B66B Aufzüge , ELEVATORS / H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS , Scheinwiderstandsnetzwerke, z.B. Resonanzkreise



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    Minimum current control for permanent-magnet synchronous motor

    Su Dan-dan, / Dong Yu-gang, / Zhang Cheng-ning, | IEEE | 2014