Dissertation > Excellent graduate degree dissertation topics show

Power switching power supply design based soft- switch technology

Author: YiWeiDong
Tutor: ZhangJianXia
School: Guizhou University
Course: Power Electronics and Power Drives
Keywords: PWM Full-bridge DC-DC converter Zero Voltage Transition (ZVT) Soft-switching
CLC: TM46
Type: Master's thesis
Year: 2009
Downloads: 218
Quote: 1
Read: Download Dissertation

Abstract


The switching power supply is widely used in the aerospace , communications , transportation and other areas . With the high-frequency technology, the development of the resonant technology , shift full-bridge phase soft switching power supplies are widely used in the field of low voltage high current switching power supply , it is necessary to study it. On the basis of analysis of the hard-switching power conversion circuit shortcomings soft switching converter circuit , the soft switch definition , classification , development and its control strategy and summarized . On this basis , an improved zero voltage switching pulse width modulation full-bridge DC-DC converter , and converter topologies , work process and its characteristics do go into the details . This converter can be successful in the load range of zero voltage switching of the main switch , and secondary side rectifier diode soft conversion , to ensure the high efficiency of the converter in a wide range of load . Previous phase-shifted full-bridge PWM converter using analog control scheme . In this paper, a new 8051 - based phase-shifting digital control scheme . Compared with the simulation program , the digital control is its flexibility , can implement complex control algorithms to compensate for its word-length effect , delay the negative role . Subsequent design of the main circuit and a control circuit , the main circuit parameters , and its phase shift control using STC12C5A16AD SCM . Finally, we use the the Pspice simulation software converter operating characteristics for simulation, the simulation proved its circuit topology is correct .

Related Dissertations

  1. Model of Cylinder Controlled by On-Off Valve and System of PWM Control,TH138
  2. Study on the Control System for Automatic Aiming of HWIL Pitching Mechanism,TJ303
  3. Grid-Side Converter Control and Wind Turbine Emulator in Direct Drive Wind Power System,TM46
  4. Research on the Application of Fundamental Magnetic Flux Compensation-type Series Hybrid Harmonic Suppression Device,TN713.8
  5. Switching power saving technology,TN86
  6. Design of the Main Circuit for Three-Phase Intermediate Frequency High-Voltage DC Power Supply of ESP,TM464
  7. Research on Torque Ripple Minimization Techniques for Permanent Magnet Brushless Dc Motor,TM33
  8. Research on 600K Var Static Var Generator Control System Used in Coal Mine,TM761
  9. Research on Feedback Linearization Method of Voltage-Source PWM Rectifier,TM461
  10. Brushless DC Motor Control System Base on the PIC18F2431 Microcontroller,TM33
  11. Research on Variable Frequency Control of Single Phase Induction Machines,TM343.1
  12. FPGA-based research brushless DC motor controller,TM33
  13. Mixed-signal FPGA- based pulsed MIG welding power controller design,TG434.5
  14. Implementation of High-power AC-square-waved Welding Source Based on Digital Control,TG434.1
  15. DSP-based dynamic shimming Amplifier Research,TN722
  16. Design of the High Frequency Switching Power Supply Based on MCU,TN86
  17. Reducing Torque Ripple of Brushless DC Motors with Bi-Directional DC/DC Converter,TM33
  18. DSP-based dual PWM control strategy and system implementation study,TM921.5
  19. Research and Development on DSP-Based Photovoltaic Grid-connected Inverter,TM615
  20. Study on Dual- PWM Variable Frequency Adjustable Speed System,TM921.51
  21. The Research on Doubley-fed Wind Turbine Control System and Converter,TM315

CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Converter
© 2012 www.DissertationTopic.Net  Mobile