Reliability Evaluation in Substations Considering Operating Conditions and Failure Modes

A novel algorithm considering the operation conditions and failure types is proposed to evaluate the substation reliability. As some devices' outage probabilities vary with their operation conditions, such as preventive maintenance measures and external weather and internal aging conditions, a...

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Bibliographic Details
Published inIEEE transactions on power delivery Vol. 27; no. 1; pp. 309 - 316
Main Authors DUAN, Dong-Li, WU, Xiao-Yue, DENG, Hong-Zhong
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.01.2012
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithms
Applied sciences
Circuit faults
Climatology
Disturbances. Regulation. Protection
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Failure
Failure mode
failure rate
Graphs
Meteorology
Operation. Load control. Reliability
Power networks and lines
Preventive maintenance
Reliability
reliability evaluation
Substations
Switches
Testing. Reliability. Quality control
Weather
Weathering
Substation
Failure mode
Outage
Ageing
Power system stability
System reliability
Failure rate
substations
Algorithm
Failures
Time variation
Preventive maintenance
Operating conditions
reliability evaluation
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Summary:A novel algorithm considering the operation conditions and failure types is proposed to evaluate the substation reliability. As some devices' outage probabilities vary with their operation conditions, such as preventive maintenance measures and external weather and internal aging conditions, a time-varying failure-rate model is presented first. In order to deduce the failure events of the system, including passive failures, active failures, breaker stuck conditions, and overlapping failures, a substation zone graph is created, and with the minimal cutsets from the zone graph to complete the failure events, the bus scheme reliability calculation model is proposed. Applying the model and algorithm to evaluate some substation systems, the results show that the operating conditions and failure types have a great impact on system reliability.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2011.2173807