TITLE:
Algorithm Study and Software Design of District Grid On-Line Risk Assessment Based on Fuzzy Theory
AUTHORS:
Jing Li, Yadi Luo, Lijie Chen, Donghong Zhao
KEYWORDS:
Power System; Fault Probability Mode; the Overhead Line; Risk Assessment; Fuzzy Theory
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
November
7,
2013
ABSTRACT: In the background of the design and construction of
Smart Grid Operation Supporting System for District Power Networks, this
paper established the weighted fault probability model of the overhead line
which is based on equipment operating status, utility theory and fuzzy theory.
In this model, the proper membership function is adopted to describe the
influence of lightning, wind speed, line ice and temperature, and the outage
rate of overhead line, derived from historical statistics, is amended. Based on
this model, the power supply risk analysis software is developed to calculate
the online risk indicators of district grid, and provide real-time decision
support information based on risk theory for scheduling operations personnel.