Dissertation > Excellent graduate degree dissertation topics show

The Research and Realization of Carrier Phase Shift Algorithm for the Cells Cascaded High Voltage Inverter

Author: LongQingWen
Tutor: OuYangHongLin
School: Hunan University
Course: Electrical Engineering and Automation
Keywords: cells cascaded high voltage frequency converter multicarrier degrees of freedom algorithm
CLC: TN773
Type: Master's thesis
Year: 2009
Downloads: 498
Quote: 4
Read: Download Dissertation

Abstract


In recent years,high voltage frequency conversion systems are widely used in many industries such as steel rolling, oil production, paper making, water treatment, etc. The cells cascaded converter, as a special form, has obtained more and more applications in the actual production process recently due to its advantage regarding harmonics, power factor, torque pulsation, common mode voltage, etc. So it’s very important to speed up its research and development as well as its application in our country,so as to enhance the production efficiency and save the energy.Based on the introduction of several multi-level converter’s topology and comtrol algorithm,the commonly used comtrol algorithm of cells cascaded converter is introduced in this paper,including step control algorithm, multicarrier control algorithm and phase shift space voltage vector algorithm.From the perspective of carrier vertical and horizontal phaseshift,some new triangular carrier control algorithm together with a classification algorithm based on the thoughts of degrees of freedom are analyzed for better control performance and simplified system.The simulation module of all these new algorithms for cells cascaded converter was constructed by MATLB/SIMULINK software.Compared with the commonly used algorithms,it analyzes the new algorithm’s excellent performance reflected in waveform of voltage,harmonics,ratio of DC voltage,and system losses,which will provide technical and theory support for the development of cells cascaded converter.Then the paper reveals the essence relationship between the triangular carrier phase shift control algorithm and the phase shift space voltage vector algorithm,and a new optimized algorithm is proposed.Third harmonics as well as dc component are simultaneously added to the previous modulation wave to enhance the ratio of voltage as well as reduce the switch losses.This optimized algorithm has the same effect as the phase shift space voltage vector algorithm,and possesses a simple implementation.The simulation results show the new algorithm is feasible.At last,Combined with the cells cascaded converter system I participated in,the soft-hardware realization of the optimized algorithms is introduced and some experiment results are given.

Related Dissertations

  1. Research on Scheduling of Whole-set Orders in JSP Based on Differential Evolution Algorithm,F273
  2. Research on Graph-Based Algorithm for Tagsnps Selection,Q78
  3. Research and Realization on Synchronization Technology of High Sensitivity GNSS Software Receiver,P228.4
  4. Development of the Platform for Compressor Optimization Design and Aerodynamic Optimization Design in the Transonic Compressor,TH45
  5. Effectiveness Evaluation on the Jointed Combat of the Multiple Missiles and Research on Combinatorial Optimization Algorithm,TJ760.1
  6. The Inductive Load Based Vehicle Body Network Control System,U463.6
  7. Reseach on Optimal Control of Elevator Group Based upon Ant Colony Algorithm,TU857
  8. The AES Algorithm and Its Implementation in DSP,TN918.1
  9. Research on UWB Location Technology Using UWB Radio Signal,TN929.5
  10. Optimizing and Realising Research on Vedio Compression in TV Guidance System,TN919.81
  11. Research and Implementation on Content-Based Clothing Image Retrieval,TP391.41
  12. Research on Removal Algorithm of Shadows in Image Segmentation,TP391.41
  13. Research on Navigation System Related Technology for Moving Objects under Dynamic Environment,TP301.6
  14. The Research of Decoding Algorithm for Statistical Machine Tranlation,TP391.2
  15. Improvement of Ant Colony Algorithmand Its Application in Robot Path Planning,TP242
  16. The Application of Fuzzy Comprehensive Evaluation Based on Genetic Algorithm in Vocational Evaluation of Classroom Teaching,G712
  17. Research and Improvement on K-Means Clustering Algorithm,TP311.13
  18. Study on Taste Characteristic of Taste Peptide Enzymatic Production from Oyster Base on A Neural Network Method,TS254.4
  19. Road extraction algorithm based on region segmentation of remote sensing image,TP751
  20. Design and Realization of the Magnetic Antenna in MW and SW Bands Based on Genetic Algorithm,TN820
  21. Research on Improved Ant Colony Optimization and Its Application in TSP,TP301.6

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Multiplier, divider,inverter > Inverter, mixer
© 2012 www.DissertationTopic.Net  Mobile