Reliability Optimization Using Fault Tree Analysis in the Grid Connected Mode of Microgrid

2016 ◽  
Author(s):  
Sundari Ramabhotla ◽  
Stephen Bayne ◽  
Michael Giesselmann
Keyword(s):  
Fault Tree ◽  
Fault Tree Analysis ◽  
Reliability Optimization ◽  
Tree Analysis

scholarly journals Fault Tree Analysis Optimized by Genetic Algorithms

2013 ◽  
Vol 21 (Special-Issue) ◽  
pp. 78-83
Author(s):  
Adriana Libošvárová ◽  
Peter Schreiber
Keyword(s):  
Genetic Algorithms ◽  
System Reliability ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Technical System ◽  
Reliability Optimization ◽  
Fault Trees ◽  
Tree Analysis ◽  
System Failures ◽  
System Reliability Optimization

Abstract This paper deals with possibilities of using genetic algorithms in design of costs optimization, which are needed to reach given reliability of technical system, respectively system reliability optimization by given amount of investment costs. In following chapters, there is a described design of new method, which will be later implemented in application and verified on an example. Causal relationships between system failures and elements faults can be detected by analytic approach, when at first the undesired system fault is identified and its reasons are progressively detected. The reliability of system and its elements is analyzed using method FTA (fault tree analysis) and system is represented by fault trees. In order to optimize costs, respectively reliability, the genetic algorithms are used.

Fault Tree Analysis for a Modern Communication System

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Kamal Hamid ◽  
Nadim Chahine
Keyword(s):  
Communication System ◽  
Communication Systems ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Theory And Practice ◽  
Tree Analysis ◽  
Satisfactory Performance ◽  
System Components ◽  
Link Budget ◽  
Simulation Results

Wireless communications became one of the most widespread means for transferring information. Speed and reliability in transferring the piece of information are considered one of the most important requirements in communication systems in general. Moreover, Quality and reliability in any system are considered the most important criterion of the efficiency of this system in doing the task it is designed to do and its ability for satisfactory performance for a certain period of time, Therefore, we need fault tree analysis in these systems in order to determine how to detect an error or defect when happening in communication system and what are the possibilities that make this error happens. This research deals with studying TETRA system components, studying the physical layer in theory and practice, as well as studying fault tree analysis in this system, and later benefit from this study in proposing improvements to the structure of the system, which led to improve gain in Link Budget. A simulation and test have been done using MATLAB, where simulation results have shown that the built fault tree is able to detect the system’s work by 82.4%.

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