Title :
Reliability evaluation of grid substations in Bangladesh power system
Author :
Hossain, Md Iqbal ; Binte Faruque, Rumana ; Chowdhury, A. Hasib
Author_Institution :
Dept. of EEE, Bangladesh Univ. of Eng. & Technol., Dhaka, Bangladesh
Abstract :
Determination of the reliability of a substation is important as it helps locate weak points that may be contributing to overall power system unreliability. This paper evaluates reliability of 230 kV grid substations in Bangladesh subject to protection failures. The problem belongs to the dynamic reliability evaluation field. Event tree analysis is used as the main method. Fault tree analysis is used to get the input of the event tree. Reliability of five grid substations are calculated. Ishurdi grid substation is found to have a mean time to failure of only six months, which will affect seriously the design and safety of the proposed nuclear power station at Rooppur sited closely nearby.
Keywords :
fault trees; power grids; power system reliability; substation protection; Bangladesh power system; Ishurdi grid substation; dynamic reliability evaluation field; event tree analysis; fault tree analysis; nuclear power station; power system unreliability; protection failures; voltage 230 kV; Circuit breakers; Integrated circuit reliability; Power system reliability; Substations; Time-frequency analysis; Bangladesh power system; Substation reliability; event trees; protection failure;
Conference_Titel :
Electrical and Computer Engineering (ICECE), 2014 International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4799-4167-4
DOI :
10.1109/ICECE.2014.7027015
