A modularization method has been proposed here for the full scope real-time simulation of a large-scale hydropower plant. In this method, the full scope dynamic simulation model can be decomposed into several subsystems that can be calculated independently in every time step, and each kind of subsystem model is developed to be a standard module. Using object-oriented modeling method for the sim...

The incessant demand for access to information at ‘anytime’ and ‘anywhere’ has motivated researchers to look into Next Generation Networks (NGNs) which will be a of platform for co-existence of different technologies. Ad Hoc Networks (AHNs) being a vital component of the NGNs still need to address challenges such as throughput, energy consumption, latency and time varying channel conditions. Co...

In recent years there has been an intensive effort to increase the participation of renewable sources of electricity in the fuel and energy balance of many countries. In particular, this relates to the power of wind farms attached to the power system at both the distribution network. However, in the presence of Renewable Dispersed Generation, (RDG) some problems in coordination of protection de...

The penetration of distributed generation (DG) in distribution power system would affect the traditional fault current level and characteristics. Consequently, the traditional protection arrangements developed in distribution utilities are difficult in coordination. Also, the reclosing scheme would be affected. With the rapid developments in distribution system automation and communication tech...

in this paper, design and application of a new digital protective relay based on fuzzy logicand value estimation to a radial power system protection was presented. a novel approach based onvalue estimation was investigated for the proposed fuzzy logic based protective relay. in addition to thetheoretical aspect of fuzzy logic, mathematical definition of value estimation, detection andmeasuremen...

The authors propose a concept for protection relay systems for operation within a Smart Grid and describe the results of a prototype development. This paper introduces each of the system characteristics that should be considered for protection operation within Smart Grid, and the evaluation methods that were applied under both normal and faulted conditions. The results of a field trial in the 6...

Federated learning (FL) has recently emerged as a promising technology to enable artificial intelligence (AI) at the network edge, where distributed mobile devices collaboratively train shared AI model under coordination of an edge server. To significantly improve communication efficiency FL, over-the-air computation allows large number concurrently upload their local models by exploiting super...

In this paper, our objective is maximizing total sum-rate subject to power constraints on total relay transmit power or individual relay powers, for amplify-and-forward single-antenna relay-based wireless communication networks. We derive a closed-form solution for the total power constraint optimization problem and show that the individual relay power constraints optimization problem is a quad...

Opportunistic relay selection (ORS) has been recognized as a simple but efficient method for mobile nodes to achieve cooperative diversity in slow fading channels. However, the wrong of best arising from outdated channel state information (CSI) fast time-varying channels substantially degrades its performance. With proliferation high-mobility applications and adoption higher frequency bands 5G ...