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One of the most important operational requirements for any electrical power network for both distribution and transmission level is voltage control. Many studies have been carried out to improve or develop new voltage control techniques to facilitate safe connection of distributed generation. In Saudi Arabia, due to environmental, economical and development perspectives a wide integration of photovoltaic...
One of the most important operational requirements for any electrical power network for both distribution and transmission level is voltage control. Many studies have been carried out to improve or develop new voltage control techniques to facilitate safe connection of distributed generation. In Saudi Arabia, due to environmental, economical and development perspectives a wide integration of photovoltaic...
Distributed generation (DG) systems have many impacts on the power network. Previously, the power was supplied from the centralized generating unit and then dispatched to the loads, but today DG systems provide electrical power at the customers' sites and slightly decline the losses due to either transmission or distribution of the electricity. Furthermore, DG systems are able to reduce the emission...
In this paper we present the performance assessment of the first grid-connected, building-integrated, thin-film PV system installed in Brazil in 1997. In the 12-years period since start up, the 40m2, 2kWp double-junction amorphous silicon BIPV generator operated continuously, with minimum downtime and high performance ratios. We also discuss reliability issues related to system design and inverter...
The paper describes the design process of a photovoltaic (PV) plant to be installed in extreme ambient conditions. In particular, a PV plant has been conceived for the very challenging conditions of the French-Italian Antarctic Base, located in the South Pole. Concordia Base has been built with the collaboration of Italian consortium PRNA, French Polar Institute IPEV and European Space Agency ESA...
The main objective of the presented work is to investigate the effect of Grid-Connected Photovoltaic systems on the voltage regulation of a residential electricity network in Saudi Arabia. Firstly, a typical residential network is used as the base case. Actual data for both loads and irradiance has been used to build a realistic model. Then, two main situations are set up for peak and light load conditions...
This paper proposes the most feasible configuration of a stand alone PV/Wind Hybrid Energy System with diesel generator as a backup for cellular mobile telephony base station site in isolated areas of Central India. It is expected that the newly developed and installed system will provide very good opportunities for mobile telephony base station in near future. The meteorological data of Solar Insolation,...
Variable nature of solar radiation makes it impossible to deliver energy from photovoltaic (PV) system at constant power level. Energy backup and storage, typically lead-acid batteries or utility grid, is always needed. In climate of Central Europe, the short and deep changes of radiation are common during the summer months. In this case, the energy storage build with supercapacitors can mitigate...
Genetic algorithms are proposed for optimal placement of hybrid PV-wind system (HPWS) and for determining the optimal ratio of wind/solar power contributions. The total capacity of HPWS is determined based on estimated annual power demand, average wind speed and sun radiation. Each PV and wind unit is defined based on real environmental conditions. To improve HPWS performance under different operating...
Renewable energy resources such as wind, wave, solar, micro hydro, tidal and biomass among others are becoming more important because of increasingly restricted environmental constraints. Production of electrical energy using solar energy falls next to wind energy among all renewable energy sources. While a two-state model is well suited for modeling conventional generators, a multi-state model is...
The present study investigates the possibility of using a stand-alone solar/micro hydro hybrid power system for low-cost electricity production which can satisfy the energy load requirements of a typical remote and isolated rural area. In this context, the optimal dimensions to improve the technical and economical performances of the hybrid system are determined according to the load energy requirements,...
Renewable energy resources such as wind, wave, solar, micro hydro, tidal and biomass among others are becoming more important because of increasingly restricted environmental constraints. Production of electrical energy using solar energy falls next to wind energy among all renewable energy sources. While a two-state model is well suited for modeling conventional generators, a multi-state model is...
Utilization of off-grid solar PV system is one of the availability approaches that can provide electricity to these villages from the remote area. The successful application of off- grid solar PV system reached the electricity demand and improved the living condition of local people in the remote area in Inner Mongolia. According to design and application of off- grid solar PV system, valued experience...
The paper outlines a stand alone (S.A.) PV plant of 3 kWp linked to an agro-refrigeration unit during summer period and to the loads of the solar energy laboratory the rest of the year. It also describes the procedures followed to convert it to a remotely monitored one using the Web services. The signals and data from the different elements of the PV plant are managed through MatLab software loaded...
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