Analysis of Factors Affecting Thrust and Voltage of Linear Motor of Maglev Train Based on Analytical Method
In view of the complex problem that the electrical performance of the linear motor on the maglev train,especially the thrust and voltage,changes with the change of different factors,and their influence degrees are different,an analytical method is proposed to analyze the influence of the factors on the thrust and voltage of the linear motor.According to the equivalent circuit of the linear induction motor,the influence of the primary current,slip frequency,air gap,primary winding temperature,secondary plate temperature and other variables on its performance is calculated and analyzed by using the proposed method,and a platform is built to test the linear motor of the maglev train.The results show that the trend of the static test results is consistent with that of the proposed method,which proves that the quantitative results of the proposed method are reliable and provides a scientific theoretical basis for the design accuracy of the linear motor,the limit of the variation range of the given parameters in the static test,and the prediction of the impact of parameter fluctuations on the performance during the maglev train operation control process.
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