Dissertation > Excellent graduate degree dissertation topics show

The Research of Switching Power Amplifier for Microprocessor Relay Protection Testing System

Author: ZuoSi
Tutor: XuKen
School: Huazhong University of Science and Technology
Course: Electrical Engineering
Keywords: Relay Protection Testing Device TMS320F2812 Switching power amplifier Multi-objective control
CLC: TM774
Type: Master's thesis
Year: 2011
Downloads: 8
Quote: 0
Read: Download Dissertation

Abstract


The performance of relay protection is directly related to the safe operation of power system,so it is necessary to make various performance tests for relay protection device before they are put into operation. In new century, China’s power industry enters a period of rapid development, with new type relay protection device widely used in power system, relay protection test technology must update constantly.Power amplifier is an important part of relay protection testing device.It is used to export high-power voltages and currents,and then drive the relay protection equipments. Conventional power amplifiers amplified analog signals directly,and the switches must work in linear area.So the conventional power amplifier has low distortion and large loss.This research discusses current amplification technology in relay protection test and Adopts the combination of switching power supply + switching power amplifier. In order to solve the inherent problem of higher harmonic component in switching power amplifier, this paper puts forward a kind of digital control method based on DSP (TMS320F2812) multi-objective control, it calculates output pulse-width timely and controls output voltage of switching power supply, then generates bipolar wave called SPWM, the SPWM waveform drivers the inverter switches , the current which is collected by CT is adjusted in the form of PI after input into AD model of DSP by regulate circuit, so output current can be controlled by this way.Finally this thesis presents the design of system , implementation of the program’s control thought of software processes, programs of the simulation and experimental validation. At last, it summarizes all above and points out paper’s strongpoints and shortcomings.

Related Dissertations

  1. The Research of Technology and Equipment with Multi-objective Control Function and High Efficiency for Welding Manufacture Large-scale Oil Tank,TG457
  2. Study on Multi-Objective Robust Control of Permanent Magnet Ring Torque Drive NC Rotary Table Servo System,TM359.6
  3. The Research of Multi-objective Optimal Control for Wind Energy Conversion System,TK83
  4. Research on the Controlled Current Quality Disturbance Generator,TM711
  5. Asynchronized Turbo Computer Intelligent Control System Excitation,TM311
  6. Simulation of multi - objective robust optimal control,TP13
  7. Multi-Axis Hybrid Electric Vehicle Drivetrain Matching and Capacity Simulation,U469.7
  8. Robust H_∞ Control and Model Reduction for Singular Systems,O231
  9. Studies of Elevator Group Control System Based on Fuzzy Neural Network,TU857
  10. Study on Multi-objective output Feedback Control of Semi-Active Suspension Based on LMI,U463.33
  11. Study on Passivity-Based Control Methods for Power System with FACTS,TM76
  12. Research and Application of Robust Gain-Scheduling Based on LPV System,TP13
  13. Research on Several Problems on Flight Control of Coaxial Rotor/ducted-fan Unmanned Helicopter,V249.1
  14. Robust Dissipative Control for T-S Fuzzy Systems and Its Application,TP13
  15. Wind Energy Conversion System Analysis、Control and Optimization Methods,TM614
  16. On Lexicographic Multi-objective Nonlinear Model Predictive Control,TP273.5
  17. Modelling and Analysis on Optimal Control for Loading Behaviour of Intelligent Truss Structures,TP273.5
  18. Research on Autonomous Flight Control Key Technologies,V249.1
  19. Studies on Multi-objective Secondary Voltage Control,TM761
  20. Analysis on Relay of Large Pumped-storage Unit and Study on Setting Calculation,TM774
  21. The Research on Distributed Self-Organized Network Based Wide Area Backup Protection,TM774

CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system protection > Protection devices
© 2012 www.DissertationTopic.Net  Mobile