This paper presents a detailed analysis and comparative investigation for the torque control techniques of interior permanent magnet synchronous motor (IPMSM) for electric vehicles (EVs). The study involves the field-oriented control (FOC), direct torque control (DTC), and model predictive direct torque control (MPDTC) techniques. The control aims to achieve vehicle requirements that involve maximum torque per ampere (MTPA), minimum torque ripples, maximum efficiency, fast dynamics, and wide speed range. The MTPA is achieved by the direct calculation of reference flux-linkage as a function of commanded torque. The calculation of reference flux-linkage is done online by the solution of a quartic equation. Therefore, it is a more practical solution compared to look-up table methods that depend on machine parameters and require extensive offline calculations in advance. For realistic results, the IPMSM model is built considering iron losses. Besides, the IGBTs and diodes losses (conduction and switching losses) in power inverter are modeled and calculated to estimate properly total system efficiency. In addition, a bidirectional dc-dc boost converter is connected to the battery to improve the overall drive performance and achieve higher efficiency values. Also, instead of the conventional PI controller which suffers from parameter variation, the control scheme includes an adaptive fuzzy logic controller (FLC) to provide better speed tracking performance. It also provides a better robustness against disturbance and uncertainties. Finally, a series of simulation results with detailed analysis are executed for a 60 kW IPMSM. The electric vehicle (EV) parameters are equivalent to Nissan Leaf 2018 electric car.


    Access

    Download


    Export, share and cite



    Title :

    Comparative Evaluation for Torque Control Strategies of Interior Permanent Magnet Synchronous Motor for Electric Vehicles


    Contributors:

    Publication date :

    2021-07-06


    Remarks:

    Periodica Polytechnica Electrical Engineering and Computer Science; Vol. 65 No. 3 (2021); 244-261 ; 2064-5279 ; 2064-5260


    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    600 / 629




    Electric vehicle permanent magnet synchronous motor torque control method

    JIN HAO / HUAI BOCHAO / ZHANG XINMIN | European Patent Office | 2020

    Free access

    Interior permanent magnet motor torque extension control

    Shen, Xiangming / Zhou, Ronghui / Li, Yong et al. | IEEE | 2014



    A new approach to direct torque control of interior permanent magnet synchronous motor

    Chunmei Zhang, / Baozhu Ma, / Heping Liu, et al. | IEEE | 2006