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In this paper, the size optimization of standalone Photovoltaic (PV)/Wind turbine hybrids system for water pumping in Sirte City, Libya are compared using HOMER Pro, HOMER Beta, and iHOGA softwares, specifically the cost of energy (COE), total net present cost (NPC), and size of the system. Various loads of water pumping for farm land are used. The optimal system suggested by iHOGA had the lowest...
This paper presents the method for optimal sizing simulated in MatLab to perform optimization the size of the hybrid stand-alone wind/PV system with storage. The methodology aims at finding the size of the system for a set of components, which completed the requirements of reliability desired system, with the lowest value of the average cost of energy.
Micro grids play an important role in the context of smart grids, improving the system reliability, resilience and stability. In case of micro grids disconnected from the main grid, due to geographical reasons or failure in the service provider, the self-sustainability management is a key issue. This paper discusses agent-based automation and control approaches to handle the self-sustainability in...
On account of the broader use of Hybrid Renewable Energy systems (HRES), latest researches are interested in solving their optimization problem. These systems have obvious advantages. However, they also present important drawbacks such as the discontinuity of the generation. Therefore, their use requires a suitable sizing and a control optimization study. In this paper, we made a research on an economic...
This paper deals with the reliability and cost analysis of hybrid renewable energy system (HRES). The optimal cost analysis of HRES is done using Hybrid Optimization Model for Electric Renewable (HOMER). The HOMER energy modeling software is a powerful tool for designing and analyzing hybrid power systems. It is currently used all over the world by tens of thousands of people. HRES provides the electrical...
The Danish power system is characterized by a large penetration of wind power. As the nature of the wind power is unpredictable, more balancing power is desired for a stable and reliable operation of the power system. The present balancing power in Denmark is provided mostly by the large central power plants followed by a number of decentralized combined heat and power units and connections from abroad...
This paper presents a research of unidirectional AGVS (automated Guided Vehicles System) with battery management in a flexible manufacturing system (FMS) based on simulation. Although battery management is important for vehicle management, this problem is usually omitted in research. It is difficult to research the AGVS in FMS from using an analytic method. So in this paper, a parameterized simulation...
The work presents a reliability analysis of a stand-alone photovoltaic system for the supply of electric loads located in remote areas not easily reachable by the low voltage distribution network. The analysis is performed by characterizing the electric load behavior by means of a Montecarlo approach for taking into account the stochastic variability of the electrical energy demand. A Montecarlo approach...
Continuous scaling, necessary for enhanced performance and cost reduction, has pushed existing CMOS materials much closer to their intrinsic reliability limits, forcing reliability engineers to get a better understanding of circuit failure. This requires that designers will have to be very careful with phenomena such as high current densities or voltage overshoots. In addition to the reliability issues,...
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