Dissertation > Excellent graduate degree dissertation topics show

Study on Harmonic Additional Loss Monitoring Method and Experiment of Distribution Transformer

Author: WangKe
Tutor: ZhangZhanLong
School: Chongqing University
Course: Electrical Engineering
Keywords: harmonic additional loss distribution transformer monitoring digital signal processing
CLC: TM421
Type: Master's thesis
Year: 2010
Downloads: 103
Quote: 1
Read: Download Dissertation

Abstract


Power harmonics caused by nonlinear load increased distribution transformer’s additional loss which causing a huge waste of energy. Traditional off-line test can not present the real status of transformer’s additional loss in operating station,so it can not guarantee transformer working with high efficiency. Energy waste is still possible now and then. Therefore, research distribution transformer’s monitoring method of harmonic additional loss is very significant to energy conservation and economic operation of transformer. This paper research and analysis monitoring method of distribution transformer harmonic loss according to the circuit model, theory of skin effect, circuit superposition theorem and electrical measurement technology, the research work are as follows:①A new algorithm of harmonic losses in distribution transformers was proposed, including its principle and formula, which provides a theoretical basis for constructing monitoring system. Because of avoiding signal acquisition in distribution transformer primary side, the algorithm reduces the complexity of the monitoring system hardware.②Developed distribution transformer data collection terminal, which realizing transformer harmonic current signal conditioning, digital collection, FFT spectrum analysis, remote data transmission and can provide data for analysis capacity, non-load loss and short-circuit loss of distribution transformer.③Developed analysis software of distribution transformer harmonic losses, which realizing harmonic current display, harmonic power calculation, GSM module control and data output. It can monitoring harmonic loss of different type distribution transformer by setting the transformer parameters and provided technical means for researching monitoring method of distribution transformer harmonic loss.④Integrated debugged the system and introduced the experimental method, we justify the online detective method of transformer harmonic loss by doing the transformer experiments. The experiments show that: this high accuracy measurements system which we developped can be applied to online monitoring harmonic losses in transformer and provide theoretical and technical basis for application of transformer harmonic loss detective method.

Related Dissertations

  1. Analysis of Flexspline Stress and Tooth Wear in Harmonic Gear Drive,TH132.43
  2. Study on the Locomotive Dynamic Supervision System,U284.48
  3. Research on the Control Scheme of Hybrid PWM Rectifier under Unbalanced Voltage,TM461
  4. Design of Arbitrary Order Harmonic Generator Based on Digital Signal Processing,TM935
  5. Study of Three-Phase AC Chopper Surge and Its Harmonic Elimination Technology,TM423
  6. Multi-Sensor Information Fusion and Its Applications on Wearable Computer,TP202
  7. Isolated systolic hypertension in patients with cardiac ultrasound characteristics of traditional Chinese medicine dialectical correlation exploration,R544.1
  8. A Mobile Health Monitoring System for the Elderly,TN929.5
  9. Integrative treatment of elderly patients with hypertension TCM syndromes and quality of life,R544.1
  10. The Research on Comprehensive Budget Management of Highway Operation Management Units,F540.58
  11. Design and Implementation of Processor TI DSP VC33 Virtual Kernel,TP332
  12. Research on the Down-hole Data Sampling and Transmission Method,TE938
  13. Development and Application of Primary and Secondary School Teachers’ Impression Management Tactics Questionnaire,G632.4
  14. The Research and Implementation of Self-tuning Method Based on Software Behavior Monitoring,TP311.5
  15. Incidence and Mechanisms of Insecticide Resistances to Organophosphates and Carbamates in Colorado Potato Beetle, Leptinotarsa Decemlineata (Say),S435.32
  16. Spectral Characteristics of Rice Damaged by Nilaparvata Lugens (St(?)l) and Cnaphalocrocis Medinalis(Guen(?)e),S435.112
  17. Resistance Monitoring in Field Populations of Bemisia Tabaci and Genomic Structure Analysis of Btgluclαl,S433
  18. Monitoring Nitrogen Status and Growth Characters with Canopy Spectral Reflectance in Summer Maize,S513
  19. Responses of the Double-Cropping Rice Population Growth and Nitrogen Uptake to Density and Nitrogen Management and the Diagnosis Based on NDVI,S511
  20. Study on Growth Monitoring Technique Based on Pixel Un-Mixing Method and HJ Remote Sensing Images in Paddy Rice,S511
  21. Educational Equity Monitoring in China: Theoretical Exploration and Case Study,G521

CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Transformers: the role of performance points > Distribution transformers
© 2012 www.DissertationTopic.Net  Mobile