Reliability Analysis of Electrical Power System Using Graph Theory and Reliability Block Diagram

B. Boussahoua, A. Elmaouhab
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引用次数: 6

Abstract

The work deals with reliability modelling and evaluation of reparable power system using graph theory and Reliability Block Diagram (RBD). Increasing in electrical energy demand and insufficient investments in power system infrastructures are the main factors that constrain engineers to operate electrical systems close to their safety limits under constrained operational conditions. Indeed, in order to be able to exploit their power systems with reduced security margins without significant operating safety deterioration, managers are looking for new tools in a way to reduce the blackouts probability. This objective could be accomplished by online analysis of electrical system security and reliability. In this work, we propose as a solution to this problem a new tool for classifying buses according to their reliability with the consideration of the engaged plants to satisfy the load for a given period. So, a methodology based on graph theory is presented resulting by developing a program under MATLAB environment which is applied on the IEEE 9 bus test system. Once classified, the reliability in each bus is evaluated using RBD method. The obtained results are very promising.
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基于图论和可靠性框图的电力系统可靠性分析
利用图论和可靠性方框图对可修电力系统进行可靠性建模和评估。电力能源需求的增加和电力系统基础设施投资的不足是制约工程师在有限的运行条件下操作电气系统接近其安全极限的主要因素。事实上,为了能够在安全边际降低的情况下利用电力系统,而不造成重大的运行安全恶化,管理人员正在寻找新的工具来减少停电的可能性。这一目标可以通过对电力系统安全性和可靠性的在线分析来实现。在这项工作中,我们提出了一种新的工具来解决这一问题,该工具可以根据客车的可靠性对其进行分类,并考虑到所从事的工厂在给定时期内满足负载。因此,本文提出了一种基于图论的方法,并在MATLAB环境下开发了一个应用于ieee9总线测试系统的程序。分类后,采用RBD方法对各母线的可靠性进行评估。所得结果是很有希望的。
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