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Research on Multi-function AC Excitation Power for Electro-Magnetic Synchronous Motor and High Voltage High Power DC/DC Full-bridge Converter

Author: DingZhiGang
Tutor: HuYuWen
School: Nanjing University of Aeronautics and Astronautics
Course: Power Electronics and Power Drives
Keywords: SPWM control Full bridge converter Zero voltage switching Switch clamp Diode reverse recovery Saturable reactor Spike suppressor Transformer clamp
CLC: TM341
Type: Master's thesis
Year: 2003
Downloads: 288
Quote: 1
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The thesis consists of two parts : 2Kw multifunction AC excitation power developed and high-voltage high-power full-bridge DC / DC Converter . In order to aviation synchronous motor excitation power experiments to find the optimal excitation scheme . The SPWM control inverter study , successfully developed on this basis a 2Kw Multifunctional AC excitation power . The power supply has the following characteristics : output unipolar , bipolar and mixed- polarity SPWM wave ; square wave can be output ; FM AM . Second , with the development of urban construction , the construction of the subway , light rail is getting faster and faster , and is becoming more and more important as the locomotive auxiliary power - high-voltage high-power DC / DC converter . This paper analyzes the traditional phase-shifted full-bridge soft switching converter the switch tube clamp DC / DC full-bridge converter topologies program , and the saturable inductors clamp DC / DC full-bridge converter and experimental verification , so as to solve the zero voltage switching switch . Order to reduce electromagnetic interference rectifier diode reverse recovery problem , given the spike suppressor design method to solve the problem of the diode voltage and current spikes and oscillation . In dealing with the high-pressure problem , this paper proposed transformer clamp high-voltage high-power DC / DC full bridge converter topologies program , the text of its working principle is analyzed , a 2Kw principle prototype to verify its working principle a good solution to the problem of high input voltage .

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CLC: > Industrial Technology > Electrotechnical > Motor > AC motor > Synchronous motor
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