This article presents a dynamic model allowing fast response predictions for a hybrid-rotor line-start permanent magnet synchronous motor (LSPMSM) operating at self-start processes with different load conditions. The model development starts with the modification of the motor state equations so as to consider the ${d}$ - and ${q}$ -axis coupling effects that could be neglected when the motor cores are assumed to be infinitely permeable but prevail in actual cases where the motor cores have a nonlinear magnetic property. Some critical motor parameters that periodically pulsate at a nonzero slip are then simplified into constant ones, and consequently, it can be ensured that the stator currents remain almost unchanged with negligible variance in output torque. Afterward, a model matching with the studied motor is developed by substituting the simplified motor parameters into the developed state equations. Finally, the accuracy of the developed model is validated by finite-element analysis and prototyping tests.


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    Title :

    Dynamic Model of a Line-Start Permanent Magnet Synchronous Motor Equipped With Hybrid Rotor


    Contributors:
    Yang, Yubo (author) / Yan, Bo (author) / Wang, Xiuhe (author)


    Publication date :

    2024-06-01


    Size :

    5211236 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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