Wyniki 1-2 spośród 2 dla zapytania: authorDesc:"ZETTY ADIBAH KAMARUZZAMAN"

Static Voltage Stability Analysis in a Distribution System with High Penetration of Photovoltaic Generation DOI:10.15199/48.2015.08.27

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This paper analyses the effect of grid-connected PV systems on static voltage stability using the IEEE 69 radial distribution system. The effect of integrating PV generators into power systems with higher PV penetration level and multiple numbers of PV generators is analyzed using PV curve and improved voltage stability index (IVSI). The P-V curve data show that grid-connected PV systems improve loading margin and voltage magnitude. The IVSI gives a positive output because systems with integrated PV generators reach the voltage collapse point. Streszczenie. W artykule analizowany jest wpływ podłączenia systemu fotowoltaicznego na na stabilność napięcia w radialnym systemie energetycznym IEEE 69. Analizowane są zależność P-V oraz indeks stabilności napięciowej IVSI. Podłączenie systemu fotowoltaicznego poprawia margines obciążenia sieci. Analiza statycznej stabilności napięciowej systemu energetycznego wzbogaconego o system fotowoltaiczny Keywords: Static voltage stability; Voltage collapse; solar PV generator; P-V curve; IVSI index. Słowa kluczowe: statyczna stabilność napięciowa, system fotowoltaiczny Introduction Modern infrastructures demand high-energy consumption with high quality and reliable electric power supply. Electric power utilities have difficulty answering these requirements due to the deficiency of conventional energy sources. Fossil fuels are a dense form of energy and thus requires millions years to develop. Therefore, renewable energy sources (RES) are introduced as a reliable form of energy to replace conventional energy sources. Wind power, solar energy, and hydropower are some examples of mainstream renewable technologies. Among those, solar energy has received much attention due to its promising energy, low installation cost, and lack of environmental pollution. Power system network design initially does not integrate any RES including solar PV. Small scale solar PV may not affect this network. However, integ[...]

Effect of grid-connected photovoltaic systems on static and dynamic voltage stability with analysis techniques - a review DOI:10.15199/48.2015.06.27

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This paper presents an overview on the effect of grid-connected photovoltaic (PV) system on static and dynamic voltage stability and discusses the analysis techniques used to quantify the effect. A review on the published works showed that the PV system design, PV parameters and the distinct design of power system network affect system voltage stability. Furthermore, a discussion is also made on the optimization techniques used for determining optimum PV placement and sizing for the purpose of improving voltage stability. Streszczenie. W artykule dokonano przeglądu metod analizy wpływu dołączenia systemu fotowoltaicznego na właściwości statyczne i dynamiczne sieci. Odpowiedni projekt wpływa na stabilność napięciową. Analizowano też metody optymalizacji położenia systemu. Przegląd metod analizy wpływu podłączenia systemu fotowoltaicznego na właściwości statyczne i dynamiczne sieci Keywords. Grid-connected solar PV system; static voltage stability; dynamic voltage stability; Optimum PV placement and sizing Słowa kluczowe: system fotowoltaiczny, system fotowoltaiczny dołac\ony do sieci 1. Introduction Renewable energy sources, such as photovoltaic (PV) systems, wind turbines, and fuel cells, are integrated into conventional power systems to address fossil fuel deficiency, intensifying energy demand, and environmental pollution. Among all types of renewable energy resources, solar PV receives major attention for its promising energy resources and low-cost installation. The fundamental operation system of solar PV differs from other generating systems. Solar PV converts sunlight into DC power using semiconductor solar cells. The DC power is then converted into AC power through a DC-to-AC converter. Given this electronic conversion system, solar PV does not have inertia, and its dynamic behavior depends on the characteristics and controls of inverters. PV systems are categorized into small-scale and large-scale PV systems; the former is [...]

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