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204 results on '"Kagan, Nelson"'

11. PA 3078: Revisão dos limites de continuidade do serviço

Author

Nascimento, Ananda Andrade, primary, Cyrillo, Ivo Ordonha, additional, Almeida, Carlos Frederico Meschini, additional, Kagan, Nelson, additional, Catramby, Rafael Ferraz, additional, Pose, Alejandre, additional, De Oliveira, Rodolfo Ribeiro, additional, Reis, Lindemberg, additional, and Fugimoto, Sérgio, additional

Published
2023
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19. Applications of Smart Water Management Systems: A Literature Review.

Author

Soares Ascenção, Érico, Melo Marinangelo, Fernando, Meschini Almeida, Carlos Frederico, Kagan, Nelson, and Dias, Eduardo Mário

Subjects
LITERATURE reviews, WATER management, WATER distribution, WATER shortages, SMART power grids, WATER use, SMART meters
Abstract

Issues such as climate change, water scarcity, population growth, and distribution losses have stimulated the use of new technologies to manage water resources. This is how the concept of smart water management emerged as a subcategory of the concept of smart cities. This article aimed first to identify the applications of smart water-management systems described in academic articles either as applications in development or as applications already implemented or as future trends; and, second, to classify them according to the processes in the value chain of public water supply services. To this end, a systematic review of the literature was carried out, in which 100 mentions of applications were identified in 62 selected articles; then, the mentions were grouped into 10 categories. The most frequent application categories were smart meters, implementation models and architectures, and loss management. Among the processes of the value chain, applications in processes of distribution and water use were highly predominant. The lack of detail about the integration between the different applications for a smart water-management system was pointed out as a limitation and an opportunity for future research development, especially in terms of a technological roadmap study based on the relationship between smart meters and loss management. [ABSTRACT FROM AUTHOR]

Published
2023
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23. Wearable-based Monitoring System for Lineman in Power Utilities to Mitigate Workplace Health and Safety Risks

Author

de Vasconcelos, Fillipe M., primary, Almeida, Carlos F. M., additional, Gualtieri, Stefano R., additional, de Eston, Sergio M., additional, Kagan, Nelson, additional, Demuner, Vanessa R. S., additional, Filho, Joselino S., additional, De Souza, Joao J. B., additional, Rosa, Luiz H. L., additional, Sa, Eduardo C., additional, and Pereira, Danilo S., additional

Published
2022
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25. Architecture Deployment for Application of Advanced Distribution Automation Functionalities in Smart Grids

Author

Sakai, Raphael Toshio, primary, Almeida, Carlos Frederico Meschini, additional, Rosa, Luiz Henrique Leite, additional, Kagan, Nelson, additional, Pereira, Danilo de Souza, additional, Medeiros, Thiago S., additional, Kagan, Henrique, additional, Cruz, Márcio R. da, additional, Júnior, José Airton A., additional, Gemignani, Matheus Mingatos Fernandes, additional, Silva, Gustavo T. A. da, additional, and Brito, José A. S., additional

Published
2021
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30. Harmonic distortion state estimation using an evolutionary strategy

Author

Arruda, Elcio F. de, Kagan, Nelson, and Ribeiro, Paulo F.

Subjects
Electric distortion -- Analysis, Electric power systems -- Brazil, Electric power systems -- United States, Electric power systems -- Properties, Harmonic analysis -- Methods, Business, Computers, Electronics, Electronics and electrical industries
Published
2010

34. Fast reconfiguration of distribution systems considering loss minimization

Author

Schmidt, Hernan Prieto, Ida, Nathan, Kagan, Nelson, and Guaraldo, Joao Carlos

Subjects
Electric power systems, Electric power distribution, Business, Electronics, Electronics and electrical industries
Abstract

This paper addresses the problem of finding the state of switching devices (open or closed) in primary distribution networks so that the total loss is minimum. Radiality and capacity constraints are taken into account. This optimization problem is a mixed-integer nonlinear optimization problem, in which the integer variables represent the state of the switches, and the continuous variables represent the current flowing through the branches. The standard Newton method (with second derivatives) is used to compute branch currents at each stage within the integer search, which, in turn, is implemented as a simple best-first search. Although a best-first search cannot normally guarantee the optimality of the solution, the high quality of the suboptimal solutions found, together with the high processing speed, make this approach very attractive for real-size distribution systems. Results from the application of the proposed methodology to a l128-branch, 129-switch, real-world distribution system are presented and discussed. Index Terms--Loss minimization, power distribution, system reconfiguration.

Published
2005

36. An Approach to Advanced Distribution Automation in the Context of Smart Grid

Author

Sakai, Raphael Toshio, primary, Frederico Meschini Almeida, Carlos, additional, Leite Rosa, Luiz Henrique, additional, Kagan, Nelson, additional, Pereira, Danilo S., additional, Medeiros, Thiago S., additional, Kagan, Henrique, additional, Cruz, Marcio da, additional, Airton Araujo Junior, Jose, additional, da Silva, Gustavo T. A., additional, and Brito, Jose A. S., additional

Published
2020
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40. Uma abordagem para a Automação Avançada da Distribuição no contexto das Redes Elétricas Inteligentes

Author

T. Sakai, Raphael, primary, F. M. Almeida, Carlos, additional, H. L. Rosa, Luiz, additional, Kagan, Nelson, additional, S. Pereira, Danilo, additional, S. Medeiros, Thiago, additional, Kagan, Henrique, additional, R. Cruz, Márcio, additional, A. A. Júnior, José, additional, Travassos, Gustavo, additional, and A. S. Brito, José, additional

Published
2020
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