The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Most important requirement in the modern control industry applications is the measurement of motor rotor shaft angle. Resolvers are absolute angular position measurement transducers, but it requires some signal processing techniques to improve the tracking accuracy of the angle. This paper discusses the mathematical design analysis of Resolver to Digital Converter (RDC) using modified Angle Tracking...
The energy demand over the years has increased significantly over the year where as the supply of energy from the fossil fuels are continuously reducing at a faster rate. This has turned attention towards the non-conventional renewable sources of energy. One of such energy is wave energy. An oscillating water column (OWC) contributes to harnessing of wave energy. OWC is a cylindrical chamber, which...
The liquid level is measured by different techniques of which capacitance techniques has wide application in measurement of level of aqueous solution in a storage tank by using insulated metallic rod electrode immersed in a metallic tank or two such identical electrode immersed in a non metallic tank. This measurement may suffer from inductance effect. Hence, the system likes a coaxial cable which...
The electric distribution system is exposed to continuous expansion due to occurrence of new load points or increase of the load in the existing points. The expansion in distribution system can be done when the existing demand is increased and/or new demand comes by small incremental steps. But sometimes unplanned expansion may increase the overall cost over a life cycle. Life cycle cost analysis...
The paper presents Particle Swarm Optimization with Constriction Factor and Inertia Weight Approach which is applied to determine the optimal hourly schedule of power generation in a hydrothermal power system. The objective of the hydrothermal scheduling problem is to find out the discharge of hydro plants and power generation of thermal plants to minimize the total fuel cost at a schedule horizon...
This paper presents the analysis of automatic generation control (AGC) of interconnected thermal-thermal power system each containing two units in the conventional environment. The improvement of AGC with the addition of a small capacity capacitive energy storage (CES) unit with different type of controllers in both the areas is studied. Time domain simulations are used to study the performance of...
Crop farming in India is labour intensive and obsolete. Farming is still dependent on techniques which were evolved hundreds of years ago and doesn't take care of conservation of resources. The newer scenario of decreasing water tables, drying up of rivers and tanks, unpredictable environment present an urgent need of proper utilization of water. We have the technology to bridge the gap between water...
In this paper a detailed comparative study has been carried out between traditional Luenberger full order observer and full order observer designed using generalized matrix inverse. In both the cases, observer dynamic equations have similar forms. Their structure wise and co-efficient wise comparisons are discussed in details. Performance wise comparison is done using an illustrative numerical example...
Cancer classification from microarray gene expression data is a challenging task in computational biology and bioinformatics as the sufficient number of labeled samples (required to train the traditional classifiers) are very expensive and difficult to collect. Therefore, the predication accuracies of the classifiers trained with limited training samples are often very low. Although, the unlabeled...
Nowadays power quality is the biggest issue in power sector. Everyone demands for reliable and good power quality. There are different problems in power quality like harmonic distortion, flicker, notching, transient, etc. Voltage sag and swell are the major problems in power quality. Dynamic voltage Restorer (DVR) is a custom power device used for mitigation of voltage sag and swell. DVR is connected...
In this paper, the influence of the In-band crosstalk-crosstalk beat noise on the Bit Error Rate (BER) of a preamplified WDM receiver is investigated assuming Gaussian approximation. From the analysis and comparison it is evident that in case of many interferers the crosstalk-crosstalk beat noise can significantly affect the value of BER and modify the optimum detection threshold for obtaining minimum...
Congestion in India has become a very serious issue as it results into an increasing rate of accidents, pollution etc. Shopping complexes and several other points, where a noticeable gathering takes place, always face such traffic problems and as a result pedestrians get to suffer mainly. So an alternative option for the people is very much necessary. In this paper the focus is given on a remedy to...
A suitable optimization model for modern power networks has been proposed in this paper, to depict the possibility of optimum utilization of the available resources, for obtaining a stable operational zone of the grid, satisfying all the indispensible factors. The state space based model developed along with the proposed small signal stability constraint methodology maximizes load catering at minimum...
In this paper an ultra-wideband Wilkinson power divider (WPD) using binomial multi-section matching transformer is proposed. First an optimized single section WPD is designed and the output response of this power divider needs to be improved for ultra-wideband applications. Then a two and three section WPD using binomial transformer is presented that yields satisfactory input and output responses...
A way of improvement of compression ratio of fractal image compression is proposed in this paper. The improvement of compression rates is done by applying the lossless compression techniques on the parameters of the affine transformations of the fractal compressed images. The Modified Region Based Huffman and its variant are used for this purpose. The PSNR of images are remained same. The comparison...
The state space based model developed in this paper maximizes load catering and simultaneously minimizes the operating standard constrained generation cost for the redemption of power market equilibrium in the most inadvertent states of the network endowed with smart grid communication technology. For optimum utilization of smart metering facility, the model effectively involves resources like demand...
This paper presents performance evaluation of an improved low cost single phase self excited induction generator (SEIG) using a three phase machine. This machine can be used in grid isolated and remote areas as a portable source of power supply. The reactive power requirement for this type of generator is provided through a single capacitor of suitable value and a single phase inverter with a photovoltaic...
Low power LNA design for high frequency wireless application is one of the challenging tasks in present scenario of VLSI. The major components of noise in amplifier are incorporated into flicker noise and thermal noise. In this paper the main concentration is given on a comparative study for a single ended LNA in the platform of 130nm to 22nm models of BSIM4 series and Verilog based CNTFET. Nose figure,...
A comparative study and performance analysis is done for a number of FACTS devices in this paper. The models used are incorporated in an existing Newton Raphson Load Flow (NRLF) algorithm using standard IEEE 5 bus and 30 bus system. Problem of initialization for proper convergence of load flow is studied and findings are presented. Results are presented for comparison of performance analysis and evaluation...
Side channel cryptanalysis is one of the most volatile fields of research in security prospects. It has proved that cryptanalysis is no more confined to its dependence on plain text or cipher text. Indeed side channel attack uses the physical characteristics of the cryptographic device to find the cryptographic algorithm used and also the secret key. It is one of the most efficient techniques and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.