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The results on the use of arbitrary waveform generators that are based on FPGA technology for generation of complex signals in modern noise radars are presented. On the basis of these devices we propose a radar scheme with digital generation of noise waveforms for both sounding signal and reference and analog processing. Experimental results show efficiency of FPGA-based application in radar with...
Energy is very important for a country for both its economic growth and socio-economic development. The main source of energy is fossil fuels. However, the use of fossil fuels has severe effects on environment like emission of greenhouse gasses. These diverse effects have leads to the demand of renewable energy resources. Renewable energy sources like wind, solar, hydro based energies, etc. are environment...
Utility grid outages can be tackled by the recently advocated micro-grid concepts, which is envisaged to escalate the use of regionally available renewable energy sources. The objective of this paper is capacity optimization of RES in a practical 5 bus micro-grid considering different operating conditions of both load and sources. The micro-grid consisting of wind turbine, solar panel, hydro and battery...
The rapid growth in speed and density of programmable logic devices such as FPGA's (Field Programmable Gate Arrays) facilitates ever more complex designs to be built within a short time frame. The adjustability of a programmable device makes it easy to integrate a design with variety of peripherals or components on a single chip and makes it versatile. Implementation of a highly realized and efficient...
This paper is focused on the synthesis and simulation of RC4 algorithm, which can be implemented on FPGA. A variable length key from 1 to 16 bytes is used by RC4 algorithm to initialize a 256-byte array. The subsequent pseudo-random bytes are generated by using this 256-byte array which is then generates a pseudorandom stream, which is EX-ORed with the plaintext/cipher text to give the cipher text/plaintext...
Electric power networks, all over the world, have been constantly increasing in size and complexity due to several interconnections and high load demand. Power system studies of such large networks require excessive time and storage. In this paper, coherency based dynamic equivalencing technique for reducing the size of the power system network is proposed and implemented in PSS/E (Power System Simulator...
The National Spherical Torus Experiment (NSTX) is undergoing a significant upgrade. The upgrade increases the toroidal field and pulse length, adds three new diverter coils and a second neutral beam injection (NBI) system. The magnet coil power supply systems for the NSTX have been redesigned with many modifications to reflect NSTX upgrade needs. The NSTX power supply system includes three major parts...
This paper studies the use of a stand-alone photovoltaic system as a means of electrifying a village in the Far North region of Cameroon. The village is currently relying on a diesel generator. The load demand covers electricity supply and water pumping for domestic and agricultural purposes. Sizing, design and cost analysis of a stand-alone photovoltaic system are carried out. The economic viability...
Integrated renewable energy systems (IRES) are increasingly being installed where the grid extension are considered uneconomical. Modeling of IRES is highly site specific and dependent on locally available renewable energy resources and load profile. This study proposes solar, biomass and biogas based IRES model for remote rural areas in Karnataka, India. For this study, seven villages of Chamarajanagar...
This paper proposes a Robust Fuzzy Multivariable Model Predictive Controller (RFMMPC) using Linear Matrix Inequalities (LMIs) formulation. The main idea is to solve at each time instant, an LMI optimization problem that incorporates input, output and Constrained Receding Horizon Predictive Control (CRHPC) constraints, and plant uncertainties, and guarantees certain robustness properties. The RFMMPC...
It has become well-established that software will never become bug-free, which has spurred research in mechanisms to contain faults and recover from them. Since such mechanisms deal with faults, fault injection is necessary to evaluate their effectiveness. However, little thought has been put into the question whether fault injection experiments faithfully represent the fault model designed by the...
This paper presents a computer-assisted method to teach and understand transmission pricing techniques. The education method is facilitated by specially designed user-friendly transmission pricing software (TPS). The proposed approach helps students fully understand transmission pricing through the fulfillment of the following educational objectives: 1) use of TPS to solve the transmission pricing...
Government of India has laid the foundation of national solar mission to establish the country as a global leader in solar energy. Tariff is a crucial factor for penetration of the solar energy across the country. This paper presents operational aspects & prevailing tariff structure of combined solar photovoltaic and battery (PV-Battery) energy system in a network. A 50 kWp solar PV-Battery system...
Hardware Software co-simulation of a multiple image encryption technique has been described in the present study. Proposed multiple image encryption technique is based on Latin Square Image Cipher (LSIC). First, a carrier image based on Latin Square is generated by using 256 bits length key. XOR operation is applied between an input image and Latin Square Image to generate an encrypted image. Then...
We describe the construction of a data mule platform running a set of services useful for small and marginal farmers. Firstly, farmers are provided information about their standing crop by instrumenting their farm lands with soil moisture sensors and measuring the associated water stress. The platform is also equipped with market prices, seed availability, latest farming practices, of pest and disease...
In this paper, the ability of the Nevada (NV) Energy generation fleet to meet its system balancing requirements under different solar energy penetration scenarios is studied. System balancing requirements include capacity, ramp rate, and ramp duration requirements for load following and regulation. If, during some operating hours, system capability is insufficient to meet these requirements, there...
Statechart formalism has been a preferred choice for modeling complex reactive systems (CRS) in recent years. It has inbuilt powerful features of orthogonality, hierarchy, intermodular communication and history. Once statechart based system modeling is done the next issues to be addressed are (1) modular verification of the system for failsafe operation under all possible working conditions (2) progressive...
This paper describes a risk-based approach to security that has been used for years in protecting physical assets, and shows how it could be modified to help secure the digital aspects of the smart grid and control systems in general. One way the smart grid has been said to be vulnerable is that mass load fluctuations could be created by quickly turning off and on large quantities of smart meters...
This paper describe a HMI interface used for monitoring and control of drilling rig applications. The software used is an embedded solution developed with LabVIEW graphic oriented software which provides a flexible and reliable support for SCADA. The today's trend in drilling operation imply a larger use of computer added monitoring and control aiming to secure higher levels of efficiency and safety...
Particle Swarm Optimization (PSO) algorithms have been proposed to solve engineering problems that require to find an optimal point of operation. However, the PSO algorithm suffers from premature convergence and high elapsed time when solving multimodal and large scale engineering problems. This problem becomes an evident drawback for embedded applications in which the microcontrollers often operates...
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