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- W3150558854 abstract "Because of the configuration of the single-phase PWM converter in the traction drive system of EMU,there exists a voltage ripple in the DC-link,which is twice the frequency of the grid.The DC ripple voltage will generate beat phenomenon at the motor,and cause torque and current pulsation.In this paper,the origin of the fluctuating DC voltage or beat phenomenon was analyzed,and the relations among the motor torque ripple,the motor current ripple and the DC voltage ripple were derived from the analytical model of the traction drive system.A beat-less control scheme based on the frequency domain analysis was proposed.By adding a compensation link,the slip frequency of the motor was modified in consistence with the ripple voltage,to eliminate the torque and current ripple caused by DC voltage ripple.The algorithm was verified by simulation and experiment." @default.
- W3150558854 created "2021-04-13" @default.
- W3150558854 creator A5025937553 @default.
- W3150558854 date "2015-01-01" @default.
- W3150558854 modified "2023-09-25" @default.
- W3150558854 title "Research on Beat-less Control Strategy Based on Frequency Domain Analysis" @default.
- W3150558854 hasPublicationYear "2015" @default.
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