Presentation Details
  1. Home
  2. Presentation List
  3. Presentation Details
Research on Safety Evaluation of Grounding Grids Based on Binary Interval Numbers
ID：92 View Protection：ATTENDEE Updated Time：2020-10-30 14:32:29 Hits：758 Oral Presentation

Start Time：2020-11-02 11:00（Asia/Shanghai）

Duration：15min

Session：E Electrotechnical Theory and New Electromagnetic Technology » E2Session 15 and Session 20

Video No Permission Presentation File

Tips: Only the registered participant can access the file. Please sign in first.

Abstract
With the overall advancement of UHV AC and DC lines and the gradual development of large cross-regional power grids, the effective grounding of power equipment plays an important role in the safe and stable operation of the power system. Regarding the numerical uncertainty caused by the measurement of grounding grid parameters, this paper proposes a multi-dimensional safety evaluation method for grounding grids based on the gray correlation degree of interval numbers. First, construct an evaluation index system and use the coefficient of variation to determine the index weight, avoiding the subjectivity brought about by expert empowerment. Second, determine the evaluation level and construct an interval number evaluation matrix. Then, the kernel density estimation is used to fit the interval number evaluation value into a probability density distribution. Finally, the final evaluation results are gotten by evaluating the weighted JS divergence between the probability density distribution and the optimal distribution. Through an empirical analysis of a 220kV substation in Zhejiang, the effectiveness of the method is verified.
 
Keywords
substation;binary interval number;assess safety;grey relational degree
Speaker
Hongpeng Xie
student Chongqing university

Submission Author
Yifan He the Research Institute of State Grid Zhejiang Electric Power Limited Company
Chengyuan Liu the Research Institute of State Grid Zhejiang Electric Power Limited Company
Jiayuan Hu the Research Institute of State Grid Zhejiang Electric Power Limited Company
Hongpeng Xie Chongqing university
Submit Comment
Verify Code Change Another
All Comments
Important Date

  • Conference Date

    Nov 02

    2020

    to

    Nov 04

    2020

  • Oct 27 2020

    Draft paper submission deadline

  • Nov 03 2020

    Contribution Submission Deadline

  • Nov 04 2020

    Registration deadline

  • Nov 17 2020

    Final Paper Deadline

Sponsored By
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
Organized By
Huazhong University of Science and Technology
Contact Information
Login to view full contact details
Previous Conferences