Dissertation > Excellent graduate degree dissertation topics show

Research on Self-Adjustable Fuzzy Control of Wind Turbine Pitch and Var Compensator

Author: XiaNing
Tutor: LiuRuiYe
School: Harbin Institute of Technology
Course: Electrical Engineering
Keywords: Static Var Generator Wind Power Adaptive fuzzy control Voltage regulator Pitch
CLC: TM761
Type: Master's thesis
Year: 2009
Downloads: 113
Quote: 0
Read: Download Dissertation

Abstract


With the growing energy crisis, become an urgent demand for new energy generation. Great potential for development, wind power has been rapid development, more and more investment in wind turbines and grid. Wind turbine induction generator wind power fluctuations and grid disturbances need to absorb a large amount of reactive power to maintain the normal operation of the unit and voltage stability. Parallel reactive compensation devices to provide reactive, is a better way to improve the wind turbine output power and stable voltage, static var generator SVG FACTS the better compensation device, research SVG control strategy, to make it in the wind power The unit needs Reactive provide better reactive power compensation, which has important implications on the operation of the wind turbine regulation and voltage performance. This paper studies the SVG basic working principle and its mathematical model is established by derivation, and the main parameters select. Reactive current detection method based on instantaneous reactive power theory of SVG, SVG current indirect control and direct control, and SVG traditional PI controller design based on compensation control. The detailed analysis of the composition and characteristics of the wind power system, wind speed, wind turbine generator theory analysis and the establishment of a mathematical model, which laid the foundations for the wind power system simulation. Wind power system has strong nonlinearity in the traditional PI method to control the access of wind power systems SVG, SVG access wind turbine compensation effect is less than ideal, this paper presents a self-adjusting fuzzy control method SVG control, and it has strong robustness and global optimization features. The composition and control rules of self-adjusting fuzzy controller design theory. Design the SVG self tuning fuzzy controller, SVG using this control method is applied to the compensation of the wind turbine, wind speed fluctuations and grid disturbances play better compensation, better voltage regulation performance. Finally, in order to better stabilize the output power and voltage of the wind turbine, we study a wind turbine paddle from the regulation system the pitch regulator has a great influence on the stability of the output power of the unit. Fan paddle from the characteristics of the nonlinear dynamic change, try to control the introduction of self-tuning fuzzy pitch adjustment, designed fuzzy PI pitch controller instead of pitch, can greatly improve the performance of pitch adjustment in the wind fluctuations and disturbances occurred, can faster stabilize the output power of the generator, grid voltage performance at the same time also played a positive role in the improvement.

Related Dissertations

  1. Grid-Side Converter Control and Wind Turbine Emulator in Direct Drive Wind Power System,TM46
  2. Research on Work Flow Simulation Technology of FROV,TP242
  3. Based on Laser Ranging Bunton Displacement Monitoring System Design and Application,TN247
  4. Shandong Peninsula wind energy development strategy of leading low-carbon economy,F426.61
  5. An Analysis on the Tone Sandhi of Zhoukou Dialect,H172.1
  6. Application of FPGA in Low SVG,TN791
  7. Application of Military Speech Name Database by VTFR Synthetic Method,TN912.3
  8. Needle Coke Powder Molding Process and Its Impact on the Performance of Carbonization Products,TQ127.11
  9. Adsorption Performance of CO2 on Different Spherical Porous Materials,X51
  10. Control of a Switched Reluctance Generator for Small Wind Power Systems,TM352
  11. Research on Chinese Speech Processing and Speech Enhancement in Hearing Aids,TN912.3
  12. Research on Automatic Measurement Technology of Pitch Diameter for the Rzeppa Joint Housing Raceways,TG80
  13. The Application of ARM on SVG,TM761
  14. Research on Power System Static Security Risk Assessment Method,TM732
  15. Research and Design on Inverter of Stand-alone Wind Power Generation System,TM464
  16. A Study of AC Excitation Wind Power Generation System and Its Excitation Control Strategies,TM315
  17. Research on Modeling and Dynamic Characteristics of Doubly Fed Wind Turbine Generators Connected into Power Grid,TM315
  18. Smart Grid battery energy storage value assessment study,TM76
  19. Studies on Algorithm of Vehicle Adaptive Cruise Control System,TP273
  20. Cutting Slope Quasi Presplit Blasting Technology Research,U416.113
  21. Wind power generation pitch system design and application,TM315

CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system automation > Automatically adjusts
© 2012 www.DissertationTopic.Net  Mobile