Technical assessment of electric utility-interactive residential photovoltaic power systems

Aly, G. E. M.; El-Zeftawy, A.A.; El-Hefnawy, A.; Eraky, S. A.

doi:10.1016/s0378-7796(98)00159-x

Cited by 9 publications

(3 citation statements)

References 9 publications

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“…However, it creates voltage rise issues. Numerous studies have been carried out to investigate the impacts of PV penetration on maximum demand charges, energy losses and voltage rise issues (IEA, 2002;Jenkins et al, 2000;Chalmers et al, 1985;Aly et al, 1999). However, such studies may need to be carried out in Malaysia's context.…”

Section: Technical Analysismentioning

confidence: 99%

Economical, environmental and technical analysis of building integrated photovoltaic systems in Malaysia

Lim

Lalchand²,

Lin³

2008

Energy Policy

115

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Section: Technical Analysismentioning

confidence: 99%

Economical, environmental and technical analysis of building integrated photovoltaic systems in Malaysia

Lim

Lalchand²,

Lin³

2008

Energy Policy

115

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“…Increasingly, low power distributed generation is being installed on the distribution network. This includes renewable energy sources (photovoltaic (PV), wind, etc) and combined heat and power (CHP) generators [4]. Utility-owned generators will be installed on the 380 V, 10 kV, 35 kV (or higher) sections-depending on output power, and will be controlled by the network operator [5] [6].…”

Section: Introductionmentioning

confidence: 99%

On-Line Independent Tap-Changing of Each Feeder Supplied by a Low Voltage Distribution Transformer

Tyne¹

2014

JPEE

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An on-line tap-changing circuit was developed for use with low voltage transformers (10 kV/380 V, or equivalent), in which the tap positions could be set independently for each low voltage feeder. This allows for possible variation in loads and distributed generation between different feeders fed from a given transformer, allowing the line voltages to be kept within limits on all feeders. A combination of computer simulation and practical experiments was used. A model constructed in Excel gave preliminary results, which was used to specify a more detailed model in Matlab ® Simulink. A small-scale 220/380 V distribution network was constructed, with currents limited to 5 A per phase. Finally, a rotary switch was constructed, suitable for currents up to 500 A, which would be required for a full-scale low voltage distribution network. The results showed that the voltage could be kept within limits, even with a large difference in load and distributed generation from one feeder to another.

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“…For example, roof integrated systems with PV modules into roof tiles; facade integrated systems act as a rain screen; and semitransparent installations can allow for some of the light to enter for daylighting or viewing. Hence, it can solve various technical issues about the integration of photovoltaic systems with the power grids [6][7][8][9]. Recently, the most common materials used for LSCs matrix is poly methyl methacrylate (PMMA), because of its low cost, high transparency, excellent photo stability, mechanical and chemical resistance [10,11].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ag Nanoparticles Doped in Polymethyl Methacrylate Matrix for Luminescent Solar Concentrator

Zhou

Zhao

2014

KEM

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Metal-enhanced fluorescence (MEF) of Ag nanoparticles (NPs) in the presence of dye molecules has been studied for application in luminescent solar concentrator (LSC) devices. The LSC was prepared from bulk polymerization reaction of methyl methacrylate (MMA), which was the matrix for the LSC devices. The polymethyl methacrylate (PMMA) sheets doped by different dye concentrations were produced. The optical properties were characterized by absorption, emission and transmission spectroscopy measurements. Effects of dye concentrations on the photovoltaic performance of LSCs were investigated and discussed. Moreover, different concentrations of Ag nanoparticles were dispersed in the matrix in the presence of dye molecules in order to study the metal-enhanced fluorescence in material. The optimal concentration of Ag NPs resulting in a maximum fluorescence emission enhancement (almost 90 %) has been obtained which induced by the particular dye/Ag NPs composite materials. It depends on the coupling and spacing between neighboring dyes and Ag NPs. The result showed that the continuous transition from fluorescence enhancement to quenching, depending on Ag NPs concentration in the LSC device. The highest efficiency (1.96%) was achieved in solar cells which were assembled by the side of the PMMA sheets with dye concentration at 20 ppm.

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Technical assessment of electric utility-interactive residential photovoltaic power systems

Cited by 9 publications

References 9 publications

Economical, environmental and technical analysis of building integrated photovoltaic systems in Malaysia

Economical, environmental and technical analysis of building integrated photovoltaic systems in Malaysia

On-Line Independent Tap-Changing of Each Feeder Supplied by a Low Voltage Distribution Transformer

Effect of Ag Nanoparticles Doped in Polymethyl Methacrylate Matrix for Luminescent Solar Concentrator

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