Transmission Line Maintenance Strategy Based on Multidimensional Risk Analysis

With the expansion of the power system, the maintenance management of transmission lines has become increasingly complex. Effective maintenance strategies are essential to ensure the reliability and economy of the power system. This paper first summarizes the importance of risk assessment, and introduces the composition of risk assessment technology in detail, and puts forward the assessment methods including equipment loss risk, personal environment risk, social loss risk and system risk factors. On this basis, a transmission line maintenance strategy based on multi-dimensional risk analysis is proposed. By quantifying the system risk of transmission lines, a maintenance decision-making process based on fuzzy set theory and interval analysis method is proposed, and the maintenance decision is made by combining economic risk indicators. Finally, the effectiveness of the proposed method is verified by an example analysis. The results show that the method can effectively reduce the maintenance cost and improve the operation efficiency of the power system under the limited maintenance budget.