scholarly journals Study on Risk Assessment of the Electric Power Tower and Pole Damage in Power System Under Typhoon Disaster

2018 ◽  
Vol 130 ◽  
pp. 1164-1169 ◽  
Author(s):  
Shiwen Yu ◽  
Hao Wu ◽  
Hao Geng ◽  
Jufang Yu ◽  
Shuai Mao ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Power System ◽  
Electric Power ◽  
Typhoon Disaster

Risk Assessment of Power System under Typhoon Disaster

2014 ◽  
Vol 8 (3) ◽  
pp. 289-296 ◽  
Author(s):  
Hui Hou ◽  
Xiongkai He ◽  
Zheng-tian Li ◽  
Aihong Aihong Tang ◽  
Hua-liang Fang
Keyword(s):  
Risk Assessment ◽  
Power System ◽  
Typhoon Disaster

scholarly journals Overview on Risk Assessment of Power System under Typhoon Disaster

2020 ◽  
Vol 1601 ◽  
pp. 022034
Author(s):  
J M Du ◽  
H Hou ◽  
A H Tang ◽  
W Q Jia
Keyword(s):  
Risk Assessment ◽  
Power System ◽  
Typhoon Disaster

scholarly journals DETERMINATION OF “WEAK” BY POWER TRANSFORMERS RELIABILITY OF POWER SYSTEMS ACCORDING TO THE RESULTS OF FAILURE RISK ASSESSMENT UNDER EXTERNAL SHORT CIRCUITS

2021 ◽  
Author(s):  
Eugeniy I. Bardik ◽  
Mykola P. Bolotniy ◽  
Yaroslav S. Koval
Keyword(s):  
Mathematical Model ◽  
Risk Assessment ◽  
Power System ◽  
Electric Power ◽  
Power Transformer ◽  
Short Circuit ◽  
Electric Power System ◽  
Power Transformers ◽  
Electrical Network ◽  
Failure Risk

Background. The increase of technological violation intensity and its consequences severity is caused mainly by objectively existing aging and service life depletion of electrical equipment. The power industry liberalization exacerbates the reliable operation problem of the power system and requires identification of power system operation accompanied by the maximum emergency risk with possible cascade accidents development. Therefore, the model development task for assessment of the equipment failure risk based on the diagnostic results of technical condition in particular under short circuit in the external network is relevant today. Objective. The aim of the work is to develop a fuzzy mathematical model for probability assessment of power transformer failure in the presence of a windings defect, short circuit in external network and emergency risk assessment under power transformers out of service. Methods. The fuzzy set theory and fuzzy logic were used for developing a mathematical model of risk assessment of power trans- former failure. The problems of determining the “weak” in terms of power transformers reliability of power systems based on the results of failure risk assessment due to external short circuits were solved by methods of fuzzy logic and probabilistic-statistical simulation of electric power system modes. Results. The necessity of complex simulation of electric power system modes is substantiated for probability assessment of power transformer failure under electrical network disturbances. The simulation of technical condition of power transformer windings was carried out. The short circuit influence on operability level of power transformers of electric power system was investigated. The quantitative indicators of operational risk of electric power system were determined under power transformers out of service. Conclusions. The linguistic mathematical model for estimating the failure probability of power transformer windings in the presence of defect and short circuit in electrical network has been developed to determine the quantitative indicators of emergency risk in power system.

scholarly journals Assessment of risks due to cyberattacks on information and communication infrastructure of cyber-physical system in the electric power system control

2019 ◽  
Vol 139 ◽  
pp. 01026
Author(s):  
Irina Kolosok ◽  
Liudmila Gurina
Keyword(s):  
Risk Assessment ◽  
Power Systems ◽  
Power System ◽  
Electric Power ◽  
Electric Power System ◽  
System Control ◽  
Communication Infrastructure ◽  
Power System Control ◽  
Assessment Approach ◽  
Information And Communication

The paper proposes an approach to risk assessment in the electric power system control to identify possible failures in the electric power system functioning caused by cyberattacks on SCADA systems and WAMS. There is a large number of information, hardware and software factors, which increase the automated dispatching control system vulnerability to cyberattacks. The study shows the influence of unforeseen cyber-incidents in the information and communication infrastructure on electric power systems through false control actions on their physical part. The effectiveness of the developed risk assessment approach is demonstrated by its performance under uncertainty.

MODELING AND SHORT-TERM FORECASTING OF TECHNOLOGY COMPONENT OF ELECTRICAL LOAD OF THE REGIONAL ELECTRIC POWER SYSTEM

2016 ◽  
Vol 2016 (4) ◽  
pp. 68-70 ◽  
Author(s):  
P. Chernenko ◽  
◽  
O. Martyniuk ◽  
V. Miroshnyk ◽  
◽  
...  
Keyword(s):  
Power System ◽  
Electric Power ◽  
Electric Power System ◽  
Electrical Load ◽  
Short Term ◽  
Short Term Forecasting
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