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- W4300870172 abstract "Power converter is a weak link in motor system. The failure of power converter will cause the motor working in an unbalanced state, affecting the stability of the whole system and even damaging the motor. Therefore, the fault diagnosis of power converter is the key to improve the reliability of motor system. In this paper, three open-circuit fault types of power converter in doubly salient electro-magnetic motor(DSEM) drive system are studied, and an open-circuit fault diagnosis method based on virtual current coefficients is proposed. This method leads out the upper and lower bridge arm buses in the traditional three-phase bridge power converter topology, and changes the installation position of current sensors. Based on current information obtained by the current sensors in the new position and driving signal, two virtual current coefficients are obtained. The difference between the two current coefficients is used as fault characteristics to realize fault diagnosis. Finally, the effectiveness of proposed method is verified by simulation results." @default.
- W4300870172 created "2022-10-04" @default.
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- W4300870172 date "2022-05-27" @default.
- W4300870172 modified "2023-09-25" @default.
- W4300870172 title "An Open-circuit Fault Diagnosis Method based on Virtual Current Coefficients for Power Converter of Doubly Salient Electro-Magnetic Motor" @default.
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- W4300870172 doi "https://doi.org/10.1109/cieec54735.2022.9846623" @default.
- W4300870172 hasPublicationYear "2022" @default.
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