Substation Reliability Evaluation Considering the Failure Events

2018 4th International Conference on Environment and Renewable Energy

生态环境科学;能源学

Kim, Sung Hun^1 ; Lee, Dong Ju^2

Kongju National University, Korea, Republic of^1

Chungnam National University, Korea, Republic of^2

关键词: Failure events;    Failure rate;    Minimal cut sets;    Reliability equations;    Reliability Index;    Repair rate;    Software programming;    Substation reliability;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/159/1/012020/pdf
DOI  :  10.1088/1755-1315/159/1/012020

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, bus and breaker structures of typical two substations were modelled by graph circuit to evaluate each reliability considering the various failure events and compare them each other. Passive failure event, active failure events, breaker stuck conditions and overlapping failure events in substation were conceptually explained and the reliability equations were presented to calculate the failure rate, repair rate and unavailability of each failure events. Also, deduction algorithms were implemented as a software programming to find the minimal cut sets for passive failure events and active minimal cut sets for active failure events. In the case study, reliability indices of each failure events and entire reliability indices (failure rate, annual outage time and MTTR) of typical two substations were calculated and quantitatively compared.