Expert System for an Optimized Asset Management in Electric Power Transmission Systems
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Expert System for an Optimized Asset Management in Electric Power Transmission Systems Danilo H. Spatti1 · Luisa Liboni1 · Rogério A. Flauzino1 · Renato P. Bossolan2 · Bruno C. Vitti2 Received: 25 June 2018 / Revised: 12 February 2019 / Accepted: 13 February 2019 © Brazilian Society for Automatics--SBA 2019
Abstract Poor asset-management practices can be considered one of the primary sources of high financial costs of electric power companies. Mostly defined as an optimization problem, asset management programs aim to guide the use of the physical assets of a company, mainly by optimizing their life cycle. Operation and maintenance policies are established for each equipment, from its acquisition, until the most appropriate time for its replacement. Therefore, it becomes strategic to use decision-making processes to reduce the global costs of an active asset and to extend its life time maximally. Based on these assumptions, we propose a method, which is instantiated by computer software, to assist asset-management decision making in the electric power companies. Keywords Asset management · Fault identification · Fault location · Automation · Distribution systems · Neural networks · Expert systems
1 Introduction Power systems have recently undergone changes that result in a significant impact in the energy sector, not only regarding technical aspects but also regarding management features, this is, organizational, economic, environmental, and technological aspects. A much more modern infrastructure with newly developed technologies and the inevitable trend that electric utility companies face within the new paradigms of the industry 4.0 are examples of some of these changes (Liboni et al. 2018). Since electric utilities are industries that have a significant impact on the environment and are strategic, modernization is crucial and can be achieved by a properly designed management system. As other basic mass utility industries, companies have to respect regulation policies regarding technical solutions on the generation and distribution of electricity, economic aspects, such as commercial rates, and policies in the life cycle of assets. Another critical aspect in this sector is the * Danilo H. Spatti [email protected] 1
University of São Paulo, Avenida Trabalhador Sancarlense, 400, São Carlos, SP, Brazil
São Paulo State Electric Power Transmission Company (CTEEP), Rua Casa do Ator, 1155, São Paulo, SP, Brazil
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strict environmental policies ranging from generation to distribution. Recently, economic and environmental restrictions have made it difficult for utilities to implement new generation plants, construct transmission and distribution lines, and substations. This fact implies that equipment will have to be used for a longer time, close to their limits of operation and near to the end of their lifetime. Consequently, the electric sector companies will have to necessarily use sophisticated control and management systems for the equipment and elements of the electrical system. In a modern electric co
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