Dissertation > Excellent graduate degree dissertation topics show

The Research on Reliability of Low-Voltage Power Line Communication

Author: KongXiangBin
Tutor: SuShiPing
School: Changsha University of Science and Technology
Course: Proceedings of the
Keywords: Low-voltage power communication reliability Channel characteristics OFDM Chaotic frequency hopping sequences
Type: Master's thesis
Year: 2011
Downloads: 21
Quote: 0
Read: Download Dissertation


In the booming process of our smart grid construction, the low-voltage power line communication is one of the most development potential’s research hotspots. Its core competence is using the existing infrastructure resources of the low-voltage power line as an information transmission medium. Thus it avoids additional investment in a new communications network. It’s also one of the key technologies in the process of constructing low-power user data management system. It can greatly enhance the power management of office automation level and improve production and living standards of people.But as a non-uniform distribution of low-voltage power line, the original design of the starting point for thousands of families to provide power, as low-voltage power line network variability strong load is complex, especially in today’s large number of frequency conversion device applications and promotion, reducing the low-voltage power line carrier communication reliability.In the process of the low voltage power line carrier communication application and promotion, there are many problems to be urgently solved, such as power line’s impedance matching, signal attenuation, noise suppression, and multipath effects, etc., which seriously affected the reliability of their systems is the basis for design of low-voltage power line communication products. Based on this, this paper presents a low voltage distribution line carrier communication improved chaotic frequency-hopping algorithm to improve system reliability.First, the paper integrates low-voltage power line communication of the current research status and significance, cites several low-voltage power line carrier chips, introduces the inadequacies of our power line carrier chip and low-voltage power line carrier communication system components, describes the basic principles and characteristics, and analyzes the system modulation technology.Secondly, the paper analyzes and models the low-voltage power line channel, analysis of channel network characteristics and communication network structure, impedance and attenuation characteristics and noise characteristics, establishes the relevant models and the simulation results. Finally the paper analyzes the low-voltage power communication modulation, introduces widely researched of the frequency hopping communications and OFDM technology and its key technologies, combined with chaos theory, puts forward a chaotic FH sequences improved algorithm, and applies to OFDM coding system, research shows that Chaotic frequency hopping sequences that effectively improve the low voltage power line carrier communication system reliability. As an open distribution network, the sequence of system security is also a great benefit.

Related Dissertations

  1. Synchronization and Channel Estimation Algorithm in Bursted OFDM System and Its Implementation on FPGA,TN919.3
  2. Development and Preliminary Application of the Questionnaire on Emotional Labour of the Middle School Teacher,B841
  3. The Research and Application of Software Reliability Test for User Right Management System,TP311.53
  4. Research on Subsea Pipeline Repair Coupling,TE973
  5. Research and Application on Reliability Technology of Mine Hidrological Monitoring System,TD742.1
  6. Body Sensor Networks Adaptive Communication Protocol,TP212.9
  7. Periodic testing of the storage system reliability model,O213.2
  8. A Study of the Methods to Reduce Peak-to-average Power Ratio of MIMO-OFDM System,TN919.3
  9. Amendment of Mental Health Evaluation Scale for Chinese Nuclear Power Plant Operators,B849
  10. Degradation of Amorphous Silicon Thin Film Transistors under Gate and Drain Voltage Bias Stress,TN321.5
  11. Research on Sidelobe Suppression for NC-OFDM Systems,TN919.3
  12. Research on Channel Estimation Technique in OFDM System,TN919.3
  13. Application of the Coal-powered Anti-grade Trip Protection System,TM732
  14. Improvement and Realization of AODV in Wireless Sensor Networks,TP212.9
  15. Reliability-based Sensitivity Research on Multi-span Rotor System,TH113
  16. The Anti-interference Research of Cell in LTE System,TN929.5
  17. Study on Frequency Offset Estimation in High-Speed Mobile Environment,TN919.3
  18. Study on the Related Parameters of High-Speed Mobile Channel,TN919.3
  19. Study on the High-Speed Mobile Channel Estimation,TN919.3
  20. High-Reliability Distributed iSCSI Storage System Based on Double-Stage RAID,TP333

CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system scheduling, management, communication
© 2012 www.DissertationTopic.Net  Mobile