Wyniki wyszukiwania - BazTech

1

Optimal capacity planning of renewable distributed generation in active distribution networks to reduce greenhouse gas emissions

Olivas J. L. M., De Faria Jr. H., Sousa T., Belati E. A.

Przegląd Elektrotechniczny

|

2017

|

R. 93, nr 4

135--139

EN

This work presents an evaluation of the maximum capacity of renewable distributed generation that can be connected to active distribution networks to minimize the greenhouse gas emissions of the electric network. The study aimed at obtaining a methodology applicable to active distribution networks with characteristics of variable generation and demand in order to reduce greenhouse gas emissions from electric power generation activities. The formulation of the methodology is based on an optimal power flow model incorporating special system controls.

PL

W artykule rozważa się maksymalna pojemność odnwialnych źródeł energii rozproszonej która może być dołączona do aktywnej sieci rozdzielczej dla zminimalizowania emisji gazów cieplarnianych. Metoda polega na modelu optymalnego przepływu mocy uwzględniającym sterowanie systemem.

2

Power Flow Control in the Converters Interconnecting AC-DC Meshed Systems

Jardini J. A, Sousa T, Romero R. A, Rider M. J, Horita M. A. B, Bassini M, Cavalheiro M. R

Przegląd Elektrotechniczny

|

2015

|

R. 91, nr 1

46-49

EN

DC grids are being strongly considered as a technology to be used for future expansions of the transmission system. Voltage sourced converters (VSC) are the key equipment considered for AC/DC interconnections. However the flow from DC to AC system has to be properly set as many alternatives exists. In this article, an Optimal Power Flow (OPF) to control the flow of power in the converters interconnecting AC-DC systems is presented. The proposed OPF solution technique was tested using the CIGRE B4 DC Grid Test System.

PL

W artykule opisano sterowanie przepływem mocy w przekształtniku łączącym sieci DC-AC. Optymalny przepływ mocy OPF był testowany w systemie sieciowym CIGRE B4 DC.

3

A New Proposal for Demand Response Program and Its Impacts on the Spot Price in the Brazilian Electricity Market

Souza R, Sousa T

Przegląd Elektrotechniczny

|

2015

|

R. 91, nr 3

137-141

EN

The growth of electricity demand in the Brazilian system is high. This is due to the growing economy featuring most of the developing countries. However, its installed capacity cannot keep the pace of such a demand growth. This has led to some problems like the saturation of the system transmission and generation components during peak periods, as well as problems such as reduced system security and the inability to maintain low energy prices during peak periods. This paper presents a new proposal for the demand response program and an analysis of how are its impacts on the spot price within the electricity market.

PL

W artykule przedstawiono program umożliwiający analizę odpowiedzi systemu energetycznego na przykładzie sieci w Brazylii. Program umożliwia wykrywanie nasycenia systemu jak również zagrożenia bezpieczeństwa.