Dissertation > Excellent graduate degree dissertation topics show

Research on 4-arms Phase-shift Series Resonant Power Supply for Electrostatic Precipitator

Author: TianGaoYang
Tutor: ZhongHeQing
School: Huazhong University of Science and Technology
Course: Electrical Engineering
Keywords: Auxiliary circuit Phase shift Series resonant converter ESP power supply
CLC: X701.2
Type: Master's thesis
Year: 2011
Downloads: 62
Quote: 0
Read: Download Dissertation

Abstract


Electrostatic precipitator (ESP) is important equipment for the prevention of air pollution, and is widely used in industrial emission control. As a main part of ESP, the ESP power supply affects the dust collection efficiency severely. The traditional power supply based on thyristor and operation on power frequency is unable to meet the requirement of increasing strict of air pollution emission standards, and it replaced by modern high frequency high voltage power supply with higher efficiency is an inevitable trend.Phase-shift full-bridge series resonant converter with capacitive filter is well suited for high voltage output applications with the main problem of limited range of ZVS. Auxiliary network could be used to expand the range of ZVS.4-leg resonant converter is based on a SRC which is modified by adding low power auxiliary circuitry. The auxiliary circuitry could provide a controlled current to ensure the ZVS over the entire operation range, which contributes to lower switch loss and higher reliability.Analysis for the converter operation above resonance is performed. By fundamental approximation, analytical expression for the converter input/output voltage gain as a function of phase-shift and frequency is derived. Different converter operation modes are demonstrated with simulation results. Analytical expression for mode boundaries is derived. Analysis and simulation for the auxiliary circuit is performed. These analyses establish the foundation for resonant elements design.Design of main power circuit and control circuit is carried out. The control circuit contains sampling circuit, protection circuit, etc. A new method to produce 4 arm phase shift driver signal by software is proposed.Finally, experimental results obtained from a prototype build as designed verify the analysis and simulation.

Related Dissertations

  1. Study on Power Supply of Electrostatic Precipitator Used in Coal-Fired Power,TM621.7
  2. Laser Diameter Measurement System Based on FPGA Pulse Counting,TN791
  3. Research on Static Var Generator Based on Cascade H-Bridge,TM761.1
  4. Phase shift beamforming FPGA Implementation,TN911.7
  5. Study on DC Link Voltage Balancing Control Strategy for Cascaded Multilevel Statcom,TM761
  6. Research on Bi-directional Dc-dc Converters for Hybrid Electric Vehicle,TM46
  7. Research of Gray Code Combined with Grey Trapezoidal Phase-shifting Coding 3D Measurement Method and System,TP391.41
  8. Application and Research Data Mining in High School Education Examination Data Analysis System,TP311.13
  9. New modulation format signal generation and regeneration of the phase,TN929.11
  10. Optical Hilbert Transform Based on Fiber Bragg Gratings,TN253
  11. Studies of Subwavelength Imaging and Focusing Using Metamaterials,TN305.7
  12. Research on Advanced Modulation Formats in High-Speed Long-Distance Optical Fiber Transmission System,TN929.11
  13. Technology and Device of Low-Temperature Plasma,O53
  14. Dual-wavelength Fiber Lasers Sensor Based on Beat Frequency Modulation Technology,TN253
  15. Finite Difference Method MT migration,P631.325
  16. The Research of Harmonic Noise Rejection Based on Slip-sweep Acquisition Method,P631.4
  17. Method of Harmonic Noise Elimination Based on Its Estimation,P631.4
  18. The Research of Control Strategy and Its Application on Mine High-voltage Inverter,TN773
  19. Simulation and Experiment of Cascaded H-bridge High Voltage Inverter,TN773
  20. Study on High Bit Rate Optical Modulation Technology,TN929.11
  21. Converter Design and Control in Fuel Cell and Supercapacitor Hybrid Power Generation System,TM46

CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Exhaust gas processing and utilization > Smoke and dust
© 2012 www.DissertationTopic.Net  Mobile