Axial Flux Permanent Magnet Machines benefit from manufacturing advantages and reduction in end winding length through the use of tooth-concentrated fractional windings but display increased space harmonic content, leading to higher eddy current losses in the rotor iron and permanent magnets. The choice of a double layer tooth-concentrated fractional winding for the modeling and design of a 24 ...

In this paper we propose a new technique for secret communication of a digital image through a network exposed to attackers. The security is achieved by a combination of two popular information security techniques: Cryptography and Steganography. We have used a modified version of AES for encryption which uses a keystream generator(W7) and four techniques for steganography (one in spatial and t...

In this paper, we study and compare two popular methods for postprocessing random number generators: linear and Von Neumann compression. We show that linear compression can achieve much better throughput than Von Neumann compression, while achieving practically good level of security. We also introduce a concept known as the adversary bias which measures how accurately an adversary can guess th...

Full power rating three-level neutral-point clamped (3L-NPC) back-to-back power converters seem promising for wind turbine systems with high power. Direct Model Predictive Control (DMPC) is an attractive technique, in particular, for multi-level converters. Voltage sensorless control makes the voltage measurements obsolete. This work proposes and verifies an Initial Bias Compensation based Virt...

This work is aimed at the development, research and optimization of superconducting integrated circuits designed to match impedances a long Josephson junction generator, so-called flux generator (FFO) superconductor--insulator--superconductor (SIS) detector in sub-terahertz frequency range. Numerical calculations optimize parameters transmission lines are presented. The main their influence on ...

In this paper, two-dimensional time-stepping finiteelement (TSFE) method is performed for modeling and analyzing of a salient pole synchronous generator with different degree of dynamic eccentricity (DE) fault. TSFE analysis is used to describe the influence of DE fault on the flux distribution within the generator and no-load voltage profiles at low and high field current is obtained for healt...