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In the era of modern computing based environment, the process of design is conceptualized, implemented and tested in a close loop integrating different modules of design, manufacturing and usages. In this regard, this paper presents a computing based design model for the design of a ‘Pneumatic Driven Variable Buoyancy System (PDVBS)’ for ‘Autonomous Underwater Vehicles (AUVs)’. The presented design...
The efficient control of buoyancy with low power is critically important in the design of new age ‘Autonomous Underwater Vehicles/Gliders (AUVs/Gs)’. This paper presents a ‘Computer Simulation Model (CSM)’ for the primary design of ‘Variable Buoyancy System (VBS)’ for AUVs/AUGs to efficient control buoyancy and the simulation model is built in the environment of integration, modular architecture and...
A scheme for on line fault detection in a power system is introduced in this paper. The scheme is based on the use of a sliding mode observer where an appropriate set of output measurements is utilized to detect the onset of faults in the transmission network of the power system in real time and on-line. The power system considered in this study comprises a generating unit connected to an infinite...
This paper presents an optimization model that incorporates a clash free mechanism for design of Autonomous Underwater Vehicles/Gliders (AUVs/Gs). The present model allows the designer to pack the internal components satisfying the stability and buoyancy criteria and integration of Computer Aided Design (CAD) and Computational Fluid Dynamics (CFD, and this integration of CAD+CFD with the optimization...
This paper presents modeling and simulation of a standalone PV (Photo-Voltaic) system with upgraded multilevel Inverter using MATLAB/SIMULINK. The modeling includes a 25 level inverter which claims that the total harmonic distortion (THD) reduced to approximately 3%. The proposed 25 level inverter uses only 12 numbers of switches which is very less than that of diode clamped, capacitor clamped and...
The design of ‘Autonomous Underwater Vehicles (AUVs)’ is mission specific and it is getting more and more complex with time because of higher demands of range, endurance, payload, operation flexibility, navigational capabilities for deep and restricted water depths, energy efficiency and special mission requirements as placed by the user agencies. These requirements of design are primarily conflicting...
In this paper the application of an Static Var System (SVS) auxiliary controller for damping torsional oscillations in a series compensated power system is presented. A new auxiliary controller, known as the combined derivative of reactive power and derivative of computed internal voltage (CDRPDCIVA) auxiliary controller has been developed and incorporated in the SVS control system located at the...
In this paper, a new constructive and versatile procedure to systematically reduce the order of control oriented engine models is presented. The technique is governed by the identification of time scale separation within the dynamics of various engine state variables and hence makes extensive use of the perturbation theory. On the basis of the dynamic characteristics and the geometry of engines, two...
Cell growth and cell division are fundamental aspects of cell behavior in all organisms. Recent insights from many model organisms have shed light on the molecular mechanisms that control cell growth and cell division. A significant body of evidence has now been accumulated, showing a direct link between deregulation of components of cell cycle machinery and cancer. Cancer can be described as a genetic...
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