Solar Irradiation Changes Detection for Photovoltaic Systems Through ANN Trained with a Metaheuristic Algorithm

This paper searches to find out of building integrated photovoltaic system designs in Khartoum. It discussed technical issues and designed an integrated of photovoltaic in domestic using, within an urban approach towards sustainability in energy. Photovoltaic systems can be used to develop the solar energy in almost all kinds of applications. Exploiting of solar energy for domestic use is one avenue where the energy produced from the sun is converted into electricity to power most if not all the appliances available at our homes and residences. Building a photovoltaic system is the process of designing, selecting, and calculating the ratings of the equipments employed in the system. This process depends on a range of factors such as geographical location, solar irradiation, and load requirements. I introduce the procedures utilize, in building and selecting the equipments of a grid-connected photovoltaic system based on the Watt-hour demand of 3.8 kw. As a case study, a residence in Khartoum with low-energy consumption is selected.

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A Virtual PV Systems Lab for Engineering Undergraduate Curriculum

International Journal of Photoenergy ◽

10.1155/2014/895271 ◽

2014 ◽

Vol 2014 ◽

pp. 1-17 ◽

Cited By ~ 1

Author(s):

Emre Ozkop ◽

Ismail H. Altas

Keyword(s):

Power Systems ◽

Undergraduate Curriculum ◽

Photovoltaic System ◽

Solar Irradiation ◽

Photovoltaic Systems ◽

Loading Conditions ◽

Operating Characteristics ◽

Pv Systems ◽

Virtual Lab ◽

Temperature Levels

Design and utilization of a Virtual Photovoltaic Systems Laboratory for undergraduate curriculum are introduced in this paper. The laboratory introduced in this study is developed to teach students the basics and design steps of photovoltaic solar energy systems in a virtual environment before entering the field. The users of the proposed virtual lab will be able to determine the sizing by selecting related parameters of the photovoltaic system to meet DC and AC loading conditions. Besides, the user will be able to analyze the effect of changing solar irradiation and temperature levels on the operating characteristics of the photovoltaic systems. Common DC bus concept and AC loading conditions are also included in the system by utilizing a permanent magnet DC motor and an RLC load as DC and AC loading examples, respectively. The proposed Virtual Photovoltaic Systems Laboratory is developed in Matlab/Simulink GUI environment. The proposed virtual lab has been used in Power Systems Lab in the Department of Electrical and Electronics Engineering at Karadeniz Technical University as a part of undergraduate curriculum. A survey on the students who took the lab has been carried out and responses are included in this paper.

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Energy Production of Different Types and Orientations of Photovoltaic Systems Under Outdoor Conditions

Journal of Solar Energy Engineering ◽

10.1115/1.4029736 ◽

2015 ◽

Vol 137 (2) ◽

Cited By ~ 3

Author(s):

Sebastijan Seme ◽

Jože Požun ◽

Bojan Štumberger ◽

Miralem Hadžiselimović

Keyword(s):

Energy Production ◽

Meteorological Parameters ◽

Tracking System ◽

Photovoltaic System ◽

Solar Irradiation ◽

Photovoltaic Systems ◽

The South ◽

Optimal Orientation ◽

Different Types ◽

The Impact

This work compares the energy production of different types and orientations of photovoltaic systems under the equal outdoor conditions over the 4-yr period in Slovenia. The following photovoltaic systems were analyzed: the fixed photovoltaic system oriented to the south tilted at 30 deg, the fixed photovoltaic system oriented to the east tilted at 30 deg, the single axis photovoltaic tracking system tilted at 30 deg, and the fixed photovoltaic system oriented to the south tilted at 15 deg. The same monocrystalline silicon (mc-Si) solar modules are used in the compared systems. The systems are installed in a radius of 20 m. This provides the same meteorological parameters during the measured period. The impact of orientation and inclination on energy production are evaluated. The analysis of the data obtained shows that the energy production of the photovoltaic systems depends on the solar irradiation, temperature of solar modules, efficiency of solar modules, and efficiency of dc-ac inverters. Based on the analysis and measurements for different photovoltaic systems, the optimal orientation and inclination are presented. The results for Slovenia show that the optimal orientation and inclination facing south tilted at 45 deg.

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