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Study on DC/DC Converters in the Electrical Network of the High Speed Maglev Train

Author: ZhangJian
Tutor: LiJianBing
School: Southwest Jiaotong University
Course: Systems Engineering
Keywords: Switching Power Supply DC - DC converter The full-bridge phase-shift control Zero voltage switching
CLC: TM46
Type: Master's thesis
Year: 2006
Downloads: 11
Quote: 0
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Abstract


Car grid main function is to provide safe and reliable power supply for car electrical equipment to ensure high-speed maglev train , safe operation . The security features of the car grid through distributed independent standard components , redundant , fault-tolerant structure to achieve . 24V onboard power supply subsystem power consumption and security equipment , electrical equipment , and high availability requirements of the power supply power supply . Its power from the the car reliable DC / DC power supply . The thesis of this background, the German high-speed maglev train to the Shanghai Maglev operational demonstration online domestic aiming maglev train , car 24V power grid subsystem and ground simulation system straight - the functional requirements of the DC converter , and according to the car power requirements and functionality of its switching power supply circuit in-depth analysis and research . In the analysis of the phase-shifted full-bridge zero voltage switching DC / DC converter working principle and control the characteristics of the technology on the basis of phase shift , to take a half-bridge topology is different from the car DC converter , inverter control circuit design method design a full-bridge phase-shift vehicle control zero-voltage switching DC switching power supply prototype , details of the circuit design process , system simulation results and experimental results are given . Finally, a summary of the entire design process , pointing out the deficiencies in the system design process . Meanwhile, the proposed improvements and next steps to expand the work laid the foundation for the further improvement of the design . Is divided into five chapters , the first two chapters briefly the development of the switching power supply , the structure of the car 24V power grid system and on-board DC / DC converter , subsequent chapters focus of phase-shifted full-bridge zero voltage switching DC / DC converter the principle of the design process of the prototype system model , simulation and analysis of the experimental results .

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CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Converter
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