Study on Operational Risk Assessment of Transmission Lines Based on Fuzzy Evaluation and Qualitative Analysis

摘要

Transmission lines, an important part of power grid, are designed for carrying electricity from power source to electrical loads. Transmission lines are vulnerable to damages due to natural environmental forces and malfunction, which will ultimately hinder the grid's power transmission function. This paper proposed a method for operational risk assessment of transmission lines based on fuzzy evaluation and qualitative analysis. This method involves qualitative analysis of factors responsible for malfunction of transmission lines and performs risk assessment of transmission lines based on fuzzy evaluation in the hope of enhancing security of transmission lines.