In order to improve the electric vehicle endurance mileage and output characteristics of motor, the optimization of inverter loss and motor current ripple reduction are considered. Aiming at high inverter loss of traditional SVPWM and high current ripple of DPWM, an adjustable discontinuous pulse width modulation(ADPWM) is proposed, whose clamping angle α and clamping phase angle θ are variable. In order to accurately calculate the inverter loss, a switching instantaneous inverter loss model is proposed, and the ADPWM inverter loss and current total harmonic distortion(THD) was studied based on Simulink modeling and simulation. The simulation and experiment results show that the experiment can be accurately reflected by Simulink model; The inverter loss can be reduced by 15%-25% by introducing ADPWM while the current distortion rate is low. With the clamping angle α increasing, the inverter loss decreased significantly. The inverter loss and motor output characteristics are effectively balanced, with setting α ranging from 40° to 55° in high speed and low load condition or setting α =55° in high speed full load condition. When α is a constant, the motor current characteristics are improved and inverter loss is reduced by the appropriate advanced clamping phase angle(-15°<θ<-5°). The continuous variable seamless conversion between different PWM methods can be realized by ADPWM.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Study of Adjustable Discontinuous Pulse Width Modulation (ADPWM) Based on Switching Transient Inverter Loss Algorithm


    Additional title:

    Sae Technical Papers


    Contributors:
    Zheng, Dongkai (author) / Zhang, Jian (author) / Wang, Jin (author) / Xu, XiaoChuan (author)

    Conference:

    WCX SAE World Congress Experience ; 2019



    Publication date :

    2019-04-02




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Study of Adjustable Discontinuous Pulse Width Modulation (ADPWM) Based on Switching Transient Inverter Loss Algorithm

    Xu, XiaoChuan / Wang, Jin / Zheng, Dongkai et al. | British Library Conference Proceedings | 2019


    Discontinuous pulse width modulation

    WANG CHANG-JIANG / DEGNER MICHAEL W / REYNOLDS WILLIAM | European Patent Office | 2016

    Free access



    Inverter control using randomized pulse width modulation

    WOLF CHRISTOPHER / DEGNER MICHAEL W | European Patent Office | 2019

    Free access