Dissertation > Excellent graduate degree dissertation topics show

The Research of Distribution Network Protection Containing Distributed Generation

Author: WangYing
Tutor: QinLiJun
School: North China Electric Power University
Course: Electrical Engineering
Keywords: distributed generation(DG) distribution network protection Multi-AgentSystem (MAS) collection protection IEC61850
CLC: TM773
Type: Master's thesis
Year: 2012
Downloads: 576
Quote: 0
Read: Download Dissertation

Abstract


The distributed generation technology is helpful to promote renewable energy development, improve the environment and the competitiveness of green energy in power system. However, in the interconnection of distributed generation (DG), the traditional simple single-source radial-network has developed to complicated multi-source loop-network, bringing traditional relay protection act incorrectly, which deeply affects system operating and controlling. Therefore it is necessary to analyze the influence of the DG to the distribution network protection and propose its countermeasures, which has important practical significance for promoting the development of distributed generation.This paper introduces the concept, background, classification, and the grid method of DG. The different capacity and location of the DG have different impact on the current flowing through the feeder protection in distribution network, meanwhile using the simulation of PSCAD/EMTDC verifies the conclusions. According to the feature of distribution network, a MAS based scheme of three-tier aggregate protection is proposed. Combined multi-agent technology with the wide-area protection, the scheme adopts wide-area failure direction as the fault location based on the amount of information that can quickly determine the fault location, and isolate the fault. In the anti-islanding protection issues, optical fiber communication signal detection method is proposed and combined with IEEE1547and IEEE1741standard gives the grid criteria. Finally, relied on the IEC61850standard designs the communication scheme of the MAS based three-tier aggregate protection. Given the communication mode of substation and station. Through analysis of communication latency the communication scheme meets the requirements of relay protection.

Related Dissertations

  1. A Merging Unit Design of Optical Electronic Transducer Based on IEC61850-9-1 Standard,TM45
  2. Distributed fault recorder modeling and data analysis,TM77
  3. Research of Wucun Substation Digitization Reconstruction Scheme and Post-project Evaluation,TM63
  4. The Analysis on the Feasibility of Intelligent Substation in Hengqin Island,TM76
  5. Based on IEC61850 the Sanxiang Substation Engineering Application,TM76
  6. Intelligent Substation Experimental Platform for Simulation and Evaluation,TM76
  7. Research of Electronic Transformers Merging Unit,TM45
  8. Study of Centralized Protection Based on Digital Substation,TM63
  9. Research of Embedded Merging Unit Based on IEC61850,TM45
  10. The Research on Distributed Self-Organized Network Based Wide Area Backup Protection,TM774
  11. Fabrication & Practice of Digital Substation Technology in 110kV Yunlin Substation,TM76
  12. Technical Solution and Practice of the Digitalized Retrofit of 110kV Substation,TM76
  13. The Research of Equipment Condition Monitoring Issue,TM73
  14. Discussion on Design Scheme of Digital Substation,TM76
  15. Renewable Energy Source Model and Message Research Based on IEC61968,TM76
  16. The Research of Intelligent Substation Technology Program,TM63
  17. Construction and Implementation of Digitization Substations Based on the IEC61850 Protocal,TM63
  18. Electricity five anti- error lockout prevention embedded in the design and implementation of the control unit,TM732
  19. FPGA-based electronic transformer developed by merging units,TM45
  20. Intelligent terminal based on IEC61850 Design and Communication Research,TM63
  21. Intelligent Substation number of key technology research and application,TM63

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