Research on Operational Risk Response Mechanism of Transmission Line Based on Internet of Things and Fault Tree

Author(s):  
Qu ShaoJie ◽  
Song YongChao ◽  
Wang ZhiGang
2014 ◽  
Vol 986-987 ◽  
pp. 1401-1404
Author(s):  
Bing Hao ◽  
Li Zhi

Overhead transmission lines is an important part in the power system and the lifeblood of the transmission system.Important element of the transmission line conductor suspension system namely conductor and insulator, hardware.This paper, by using the fault tree analysis method, establishes the mathematical model of the transmission line conductor suspension system running condition assessment, reliably evaluates the running status of system, find out the weak links and the problems of the various parts, for the evaluation and maintenance of overhead transmission line provide theoretical support.


Kybernetes ◽  
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yao Zhang ◽  
Xin Guan

Purpose The purpose of this paper is to propose a method integrating fault tree analysis and optimization model to allocate response budget from the preventive and protective perspectives. Design/methodology/approach The proposed method consists of two main steps. The first step is to analyze and calculate the probability and the loss of the risk. The second step is to build an optimization model for allocating response budget. Findings First, there exists an optimal response budget. Second, risk protection is preferred to risk prevention when the total budget is limited. Third, the protective budget should be first invested for the consequence event with greatest expected loss. Fourth, the preventive budget should be first allocated to the risk cause with highest occurrence probability that belongs to the OR set in the fault tree. Practical implications Managerially, our results indicate that project managers (PMs) should make a tradeoff between the budget invested for risk response and reduced expected loss of the risk. Then, in the case of inadequate response budget, PMs should pay more attention to risk protection and cope with the event that can cause severe loss. In addition, under this circumstance, PMs had to better allocate the risk preventive budget in proper order. Originality/value Project risk response is a critical issue in project risk management as PMs can take actions actively to cope with project risks in this phase. Effective risk response, in general, requires financial support in practice, and reasonable allocation of the total budget among risk response strategies can produce better response effects.


Author(s):  
S. Suresh ◽  
R. Nagarajan ◽  
L. Sakthivel ◽  
V. Logesh ◽  
C. Mohandass ◽  
...  

2014 ◽  
Vol 1044-1045 ◽  
pp. 412-416 ◽  
Author(s):  
Zhi Hui Li ◽  
Qin Xiang Gao ◽  
Jie Hui

This paper introduces a fault tree (FT) method based on fuzzy numbers, aiming to deal with the inadequate statistics and the uncertain probability of the basic events during the fault tree analysis for power transmission line field maintenance work. Based on expert judgment, the Delphi method is used to transform fuzzy language to triangular fuzzy numbers, finally an approach for defuzzification is developed. A typical hazard in replacing the linear composite insulator of 500kV transmission line field maintenance work is presented for a case study. The method is conducive to a better risk pre-control and decision-making.


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