Dissertation > Excellent graduate degree dissertation topics show

Dynamic Identification for Inter-turns Short Fault in Turbogenerator

Author: HanLei
Tutor: LiHeMing；LiuZhiLin
School: North China Electric Power University
Course: Electrical Engineering
Keywords: Detection coil Interturn short circuit Vanishing moments Modulus maxima de-noising Online detection device
CLC: TM307.1
Type: Master's thesis
Year: 2011
Downloads: 19
Quote: 0
Read: Download Dissertation

Abstract


The generator rotor is an important part of the generator rotor winding inter turn short-circuit is a common fault of turbine generator . If the power system generator failure may lead to local power outages , and the whole system crashes . Generator Rotor Windings short-circuit fault early warning is essential . This paper first analyzes the previous application detection coil -line detection theory and practice of the turbine generator interturn short-circuit fault ; then study the application of wavelet theory in fault diagnosis , and select the appropriate vanishing moments can reduce the impact of the armature reaction ; in a variety of different operating conditions in the stator and rotor air gap EMF signal characteristics of the different characteristics of the noise signal , the wavelet transform modulus maxima de-noising method ; singularity and the symmetry of the failure signal in order to achieve a the positioning of the generator rotor winding fault detection and fault slot . And simulation in MATLAB environment . On this basis, the the Ruitai company TMS320VC33 development board designed peripheral interface circuit , and field data collection , wavelet transform modulus maxima denoising algorithm burn development board FLASH . Finally, research and development of a stand-alone device set for on-line detection of generator rotor inter-turn short circuit detection . Theory and examples show that the method is suitable for online testing of the generator rotor winding inter-turn short circuit fault .

Related Dissertations

  1. Some Properties of 3-Band Orthogonal Wavelets and Their Parametrizations,O174.2
  2. Research on Stator Winding Interturn Short Circuit Faults Diagnosis of Induction Motor,TM346
  3. Two types of multivariate wavelets and smoothness analysis,O241
  4. A Family of Biorthogonal Wavelets in l～2(Z),O174.2
  5. On Constructions and Applications of Multivariate Wavelet,O241
  6. The Theories of N-D Generalized Quasi-real Wavelets & Wavelet Moments and Their Applications,O241
  7. Parameterization of Wavelets and Research on Wavelet Neural Networks,O241
  8. Wavelet construction based on algebraic and graphical methods to achieve,O174.2
  9. Y d vector transformation transformer differential protection interturn short - circuit emulation,TM407
  10. The Design and Its Applications Research of Multiband Coifman Wavelets,O241
  11. Study on Signal Processing Key Technology of Millimeter Wave Automobile Anti-collision Radar System,TN959
  12. Some studies on the adaptive wavelet,TP391.41
  13. Study of Reducing Groove Effect for the Maglev Train Gap Sensor,TP212
  14. Hermite Cubic Spline Wavelets with High Order Vanishing Moments,TP391.41
  15. Some Problems in Multi-bank Wavelets,TN713
  16. Study on Inter-turn Short Circuits Detect in Rotor Winding of Generator Based on DSP,TM303.3
  17. Reserch of Motor Turn-to-turn Insulation Test Alorithm Based on Artificial Intelligence,TM301
  18. Multiscaling Functions and Multivariate Wavelet Frames,O174.2
  19. Compactly supported orthonormal wavelet and wavelet theory in economic forecasts,O174.2
  20. The Research of Pulsed Eddy Current Testing Technology,TH878

CLC: > Industrial Technology > Electrotechnical > Motor > General issues > Maintenance and repair of motor > Motor failure
© 2012 www.DissertationTopic.Net  Mobile