Results: 19

Optimal Operation of an Urban Microgrid Using Model Predictive Control Considering Power Quality Improvements

Braz. arch. biol. technol; 64 (spe), 2021
Abstract Microgrids have been widely applied to improve the energy quality parameters of a distribution system locally, in addition to ensuring the operation of the system in an isolated manner. The Model Predictive Control (MPC) is a great solution to guarantee the operation of the system considering fo...

Optimal Dispatch and Technical and Economic Feasibility Analysis of Residential Microgrids Considering Demand Side Management

Braz. arch. biol. technol; 64 (spe), 2021
Abstract The electrical system is becoming more robust with the insertion of distributed energy resources (DERs) and the need for energy autonomy by consumers, given that the current scenario is a growth in demand for electric energy. This paper aims to apply a computational model capable of determining ...

Recent Research and Development of Microgrids in Parana

Braz. arch. biol. technol; 64 (spe), 2021
Abstract Microgrids (MGs) have increasingly attracted the attention of researchers, government officials, and electricity companies for the values and services they can add to the grid. They can operate independently as a single controllable unit in a coordinated way while connected or islanded, which ma...

A Computational Framework for Daily Power Flow Analysis Considering Photovoltaic Distributed Generation

Braz. arch. biol. technol; 62 (spe), 2019
Abstract In Brazil, the demand for the acquisition and installation of photovoltaic systems has grown exponentially and, with that, the importance of studies considering their effects on the distribution grids power flow also grows. Due to the intermittent nature of photovoltaic generation, it is importa...

Computational algorithm for stability analysis of distribution networks with distributed generation

Braz. arch. biol. technol; 62 (spe), 2019
Abstract With the insertion of distributed generation in distribution networks, security analysis becomes crucial, in islanded operation or when the system is connected to the grid. Dynamic stability analyses are necessary in order to achieve minimum levels of security and reliability. Such analyses are ...

Photovoltaic Cell Temperature Estimation for a Grid-Connect Photovoltaic Systems in Curitiba

Braz. arch. biol. technol; 62 (spe), 2019
Abstract The photovoltaic solar energy has been growing in installed capacity worldwide year by year, and Brazil has also been investing in this renewable source of energy generation. The conversion of light into electrical energy occurs in the photovoltaic cells, which are sensitive to the increase of t...

Technical Losses Reduction in Underground Reticulated Distribution Systems using Artificial Neural Networks and Smart Grid Features

Braz. arch. biol. technol; 61 (spe), 2018
ABSTRACT This work presents the methodology, development and testing of an autonomous system, based on Artificial Neural Networks (ANN), for the reduction of technical losses in reticulated underground systems through the optimal control of the capacitor banks (CBs) present in the grid. The proposed meth...

State-of-the-Art Impacts of Smart Grid in the Power Systems Operation and Expansion Planning

Braz. arch. biol. technol; 61 (spe), 2018
ABSTRACT In this article, a state-of-the-art review on the impacts of Smart Grid in the operation and planning of the expansion of the Electric Power System is presented. The concept of Smart Grid is increasingly integrated in conventional networks, and the impact that this new technology generates on op...

Power Flow Analysis and Self-recovery of Electrical Energy Distribution Network Using Artificial Neural Networks

Braz. arch. biol. technol; 61 (spe), 2018
ABSTRACT A computational model for self-recovery of electricity distribution network was developed to simulate it, emulated by the IEEE 123 node model. The electrical system considered has automatic switches capable of identifying a momentary failure in the line and finding the best reconfiguration for i...

Effects of the Photovoltaic Distributed Generation on Electricity Distribution System Voltage - Updated Review

Braz. arch. biol. technol; 61 (spe), 2018
ABSTRACT Concerns about the environment and a growing demand for electricity have led to the intensive search for renewable energy sources. Photovoltaic solar energy, in the form of distributed generation, has shown a very high growth rate to an extent that in some regions it will be adopted on a large s...