This article presents an original method to accurately predict the end of discharge of rechargeable batteries inserted in portable electronic equipments. The proposed method is based on two neural networks organized in a master-slave relation. A prediction accuracy of 3% (18 minutes) is reached. A further improvement of the system is introduced by adapting on-line another neural network to the ...

Harmonic current pollution is a one of the major power quality problem in electrical power systems. In office buildings one of the main harmonic sources is a large numbers of computer loads. Especially, personal computers apply harmonic distortions to their power supply systems. In this study, harmonics models of equipments, a MATLAB ® code and single-phase Simulink simulation models are develo...

Current mobile devices, and mobile phones in particular, are equipped with different wireless technologies that increase and diversify their communication capabilities. The combined and effective use of these technologies offers various opportunities in terms of services and applications. However, it requires detailed analysis in terms of security and choice of the communication mean to use acc...

The goals of this project are to develop rehabilitation strategies and enhance seismic design guidelines for key equipments in power substations, which are one of the most critical facilities in a power system. Furthermore, it will provide the knowledge base to be integrated into the overall loss estimation model for the entire power network. To achieve these goals, key substation equipments ar...

We installed solar panels and digital meteorological equipments whose electrical power is supplied using PV on July 13, 2011. Then, the relationship between the electric power generation and the irradiation, air temperature, and wind velocity was investigated on a roof at a university. The electrical power generation, irradiation, air temperature, and wind velocity were monitored over two years...