Advanced Inrush Current Mitigation Techniques for Microprocessor-Less High Power AC/DC/DC Synch-Buck Converters: A Start-up Perspective
سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 33
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شناسه ملی سند علمی:
JR_IECO-6-4_007
تاریخ نمایه سازی: 17 دی 1402
چکیده مقاله:
This paper investigates the starting current of an AC/DC/DC converter, consisting of a three-phase diode bridge rectifier and a synchronous buck converter. The use of microprocessors in such converters increases the total cost and also reduces reliability due to EMI phenomena. For this reason, by removing the microprocessor, a start-up plan including a limiting starting resistor and then soft starting the switching module is proposed in this paper. By modeling the system under different operating modes, a solution is presented to minimize the circuit startup period, which includes minimizing the bypass time of the startup resistor and reducing the switching soft startup period as possible. The proposed method has been implemented on a ۱۵-kW converter feeding from a three-phase ۳۸۰ V power grid and provides up to ۳۰۰ Vdc/۵۰ Adc to supply an electroplating pool. The results show that the sequential startup procedure, including using a ۵۰ ohm/۱۵۰۰ w resistor for ۳ seconds, and then bypassing it, then starting soft switching after half a second and during ۱.۵ s, can move this circuit to a steady state in ۵ seconds, keeping current in all parts below half rated current.
کلیدواژه ها:
نویسندگان
Mohammad Bahramian
Department of Electrical Engineering, Faculty of Engineering, Arak ‎University, Arak, Iran
Mazdak Ebadi
Department of Electrical Engineering, Faculty of Engineering, Arak ‎University, Arak‎,iran
Ali Ghadimi
Department of Electrical Engineering, Faculty of Engineering, Arak University, Arak,iran