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Generation side of the Power industry has taken a major leap towards successfully extracting energy from the different Renewable Energy Sources (RES). Day-by-day continuous efforts are made in order to utilize more energy from these RES rather than depending on the conventional energy sources mainly for these reasons: to attain pollution-free environment, to minimize the fast depletion of the natural...
Microstepping of stepper motor plays a major role in minimizing motor disturbance as well as improving pointing accuracy. Generally, microstepping is carried out with a pre-defined rate profile where final position is known beforehand. This is not suitable for real time tracking application. In this paper an innovative Variable Rate (VR) based microstepping algorithm is developed which will track...
In this paper, simulation studies for unity power factor control of grid connected 8 kW solar photovoltaic (SPV) system are presented. The characteristics of photovoltaic system are studied under various load and atmospheric conditions. The six pulses for PV inverter are generated using instantaneous symmetrical component theory (ISCT) control algorithm. DC bus voltage is maintained at 800V using...
The manually traced continuous wave Doppler (CWD) echocardiographic images are used in estimating the severity of valvular abnormalities. Manual tracing is a time consuming activity embedded with inter- and intra-personal variations. To address this issue an automatic delineation technique based on texture filters is proposed in this work. The outer boundaries of the CWD images reflecting aortic regurgitation...
Magnetic Levitation System (MLS) is a typical multi-variable, nonlinear and unstable system. The basic aim of our research work is for suspending the steel ball without any mechanical support in desired position with help of an efficient controller. The simulation of MLS based on its mathematical model is carried out in MATLAB and its real time implementation is also achieved. In this paper an interval...
Numerical solution of a two-dimensional nonlinear singularly perturbed elliptic partial differential equation ∈ Δu = f(x, u), 0 < x, y < 1, with Dirichlet boundary condition is discussed here. The modified Newton method of third-order convergence is employed to linearize the nonlinear problem in place of the standard Newton method. The finite-element method is used to find the solution of the...
Optical burst switching (OBS) is a promising switching technology for realization of terabit optical network. However, the lack of optical processing capability results in increased blocking probability and limits the network performance. Efficient contention resolution is therefore necessary. Optical burst-switched networks are usually implemented using efficient contention resolution protocols like...
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