Power System S Security
Mostrando 1-12 de 15 artigos, teses e dissertações.
-
1. Grid anywhere: an extensible desktop grid computing middleware / Grid Anywhere: Um middleware extensível para grades computacionais desktop
This PhD thesis presents investigations, models and implementations of a computational grid middleware named Grid Anywhere. This platform aims at allowing the build of computational grid systems, which enable the increase of the number of participants as consumers and resource providers. In order to do this, new solutions are presented to manage security pol
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2012
-
2. Insersecção de classes : fundos de pensão e sindicalismo no Brasil / Class s insersection : pension funds and unions in Brazil
This thesis discusses the relationship between pension funds and the unions, focusing on the period of Lula?s Government (2003-2010), because it?s a historic moment particularly relevant, in which the main politic forces sustaining the government have their bases in social unionism-CUT, which have strong interests in the pension funds issue. The research was
Publicado em: 2011
-
3. Proposta de um sistema de gerência de redes PLC utilizando SNMPv3 / Proposal of a management system for PLC networks using SNMPv3
TECNOLOGIAS de acesso para transmiss~ao de dados, como xDSL, Wi- e cable modem s~ao amplamente utilizadas por permitirem altas taxas de transmissãao a baixo custo. Dentre essas tecnologias, a Power Line Communications, conhecida como PLC, e uma solução promissora. A tecnologia PLC permite a transmiss~ao de dados atraves da rede eletrica, rede essa que apr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/08/2009
-
4. Sistema de suporte a decisão para analise e previsão de carga por barramento / Decision support system to the analysis and bus load forecasting
In a power operation system there are many variables that can Influence the execution of t ho control routines. The attendance of these variables is very important to aid the processes in the safe operation of the system. In the electric system the bus load level is an important variable in operation planning step. Accurate Information on the load level In e
Publicado em: 2009
-
5. O acesso ao Benefício de Prestação Continuada no município de Campinas(SP): desafios para sua consolidação como direito socioassistencial
This research tried to highlight the inauguratory character of the Benefício de Prestação Continuada - BPC (Cash Transfer Program) as a no-contributory social right in a country which historically had as its mark a regulated citizenship and therefore waged work and social protection for its population were never made universal. The analysis made located t
Publicado em: 2009
-
6. The peculiarities of health systems in Mercosurs member countries: prospects for a regional integration / As peculiaridades dos sistemas de saúde dos países membros do Mercosul: perspectivas para a integração regional
Abstract This qualitative study, based on the comparative-descriptive and analytical-descriptive methods, identifies and historically describes the harmonization process of the health care systems of Mercosurs member countriesArgentina, Brazil, Paraguay and Uruguayin line with the regional integration process under way. It focuses on understanding (i) the hi
Publicado em: 2009
-
7. Reforma sanitária: o processo de constitucionalização do Sistema Único de Saúde
The main objective of this paper is to understand the institutionalization process of Health as everybody‟s right and duty of the State in Federal Constitution of 1988.It begins by describing how the concept of Collective Health was formed, gives an overview of theoretical, political and social basis of the movement for Health democratization, the Sani
Publicado em: 2009
-
8. MULTICRITERIA OPTIMISATION OF HYDROTHERMAL SYSTEMS OPERATION USING GENETIC ALGORITHMS / OTIMIZAÇÃO MULTICRITÉRIO DA OPERAÇÃO DE SISTEMAS HIDROTÉRMICOS UTILIZANDO ALGORITMOS GENÉTICOS
In Brazil, the planning of the energy operation of the National Interconnected Power System is currently done through a chain of mathematical models designed to optimise the planning according to criterion of minimisation of the expected value of the total operation`s cost. However, since the 2001-2002 energy supply crisis, there was an intensification in th
Publicado em: 2008
-
9. Computation of voltage stability margins of power systems / Obtenção da margem minima de estabilidade de tensão de sistemas eletricos de potencia
This work presents a new and fast method for computing the minimum voltage stability margin of electric power systems. The computation of the voltage stability margin (VSM) is often required for the planning and operation of power systems. Usually, loads are increased along a predefined direction, which can be estimated based on historical data or load forec
Publicado em: 2007
-
10. DEVELOPMENT OF AN ARTIFICIAL NEURAL NETWORK FOR MONITORING AND DIAGNOSIS OF SENSOR FAULT AND DETECTION IN THE IEA-R1 RESEARCH REACTOR AT IPEN / "Utilização de redes neurais artificiais na monitoração e detecção de falhas em sensores do Reator IEA-R1"
The increasing demand on quality in production processes has encouraged the development of several studies on Monitoring and Diagnosis Systems in industrial plant, where the interruption of the production due to some unexpected change can bring risk to the operators security besides provoking economic losses, increasing the costs to repair some damaged equ
Publicado em: 2006
-
11. Optimal dispatch of generating units in hydroelectric systems by heuristic based on langrangean relaxation and dynamic programming / Despacho otimo de unidades geradoras em sistemas hidreletricos via heuristica baseada em relaxação lagrangeana e programação dinamica
The daily scheduling operation of the electrical energy system has by target to find the dispatch generation to the next day which must be compatible with the daily generation target defined by the energy planning models and to be an operational guide. Because of its proximity with the real time operation the modeling must represent the main characteristic o
Publicado em: 2006
-
12. Preventive control strategies for maintaining secure on-line voltage stability margins / Estrategias de controle preventivo para a manutenção de margens de segurança com relação a estabilidade de tensão em tempo real
O problema de estabilidade de tensão tem recebido uma atenção crescente dos profissionais que atuam na área de análise e operação de sistemas de potência. O aumento das interligações aliado a operação das redes com altos níveis de carregamento torna mais provável a ocorrência de incidentes que podem levá-las à instabilidade de tensão, culmi
Publicado em: 2006