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Improving the grid operation and reliability cost of distribution systems with dispersed generation
(2013-02-01)
In this work, a mathematical model to analyze the impact of the installation and operation of dispersed generation units in power distribution systems is proposed. The main focus is to determine the trade-off between the ...
Fault section estimation in electric power systems using an optimization immune algorithm
(Elsevier B.V. Sa, 2010-11-01)
This paper proposes a methodology based on the unconstrained binary programming (UBP) model and an optimization immune algorithm (IA) to estimate fault sections in electric power systems. The UBP model is formulated using ...
Phase Distance Relaying With Fault Resistance Compensation for Unbalanced Systems
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2011)
This letter presents an extension of an existing ground distance relay algorithm to include phase distance relays. The algorithm uses a fault resistance estimation process in the phase domain, improving efficiency in the ...
Modelo AC para el despacho combinado de contratos bilaterales y bolsa de energía considerando restricciones de seguridad
(2009-12-01)
Reliability is a key aspect in power system design and planning. Maintaining a reliable power system is a very important issue for their design and operation. Under the new competitive framework of the electricity sector, ...
Power Transformer Differential Protection Based on Clarke`s Transform and Fuzzy Systems
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2011)
The power transformer is a piece of electrical equipment that needs continuous monitoring and fast protection since it is very expensive and an essential element for a power system to perform effectively. The most common ...
Hybrid fault diagnosis scheme implementation for power distribution systems automation
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2008)
Power distribution automation and control are import-ant tools in the current restructured electricity markets. Unfortunately, due to its stochastic nature, distribution systems faults are hardly avoidable. This paper ...
Distribution systems fault analysis considering fault resistance estimation
(ELSEVIER SCI LTD, 2011)
Fault resistance is a critical component of electric power systems operation due to its stochastic nature. If not considered, this parameter may interfere in fault analysis studies. This paper presents an iterative fault ...
Fault Detection in Power Distribution Systems Using Automated Integration of Computational Intelligence Tools
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2011)
The main purpose of this paper is to present architecture of automated system that allows monitoring and tracking in real time (online) the possible occurrence of faults and electromagnetic transients observed in primary ...
New approach for power transformer protection based on intelligent hybrid systems
(INST ENGINEERING TECHNOLOGY- IETHERTFORD, 2012)
A power transformer needs continuous monitoring and fast protection as it is a very expensive piece of equipment and an essential element in an electrical power system. The most common protection technique used is the ...
Optimized Allocation of Control and Protective Devices in Electric Distribution Systems
(Taylor & Francis Inc, 2010-01-01)
Optimized allocation and/or reallocation of control and protective devices in distribution networks allow for better operation and improved system reliability indices. Control devices (used to reconfigure the feeders) are ...