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首頁> 中文期刊> 《國際煤炭科學(xué)技術(shù)學(xué)報：英文版》 >Characteristics of permanent magnet linear synchronous motor fed by spwm inverter based on field-circuit coupled method

Characteristics of permanent magnet linear synchronous motor fed by spwm inverter based on field-circuit coupled method

     
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Presented field-circuit coupled adaptive time-stepping finite element method to study on permanent magnet linear synchronous motor (PMLSM) characteristics fed by SPWM voltage source inverter.In air-gap field where the direction or magnitude of the field is changing rapidly,the smallest elements are demanded due to high accuracy to use adaptive meshing technique.The co-simulation was used with the status space functions and time-step finite element functions,in which time-step of the status space functions was the smallest than finite element functions'.The magnitude relation of the normal elec- tromagnetic force and tangential electromagnetic force and the period were attained,and current curve was very abrupt at current zero area due to the bigger resistance and leak- age reactance,including main characteristics of motor voltage and velocity.The simulation results compare triumphantly with the experiments results.

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