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The rising need for clean energy and the drastic fall in fossil fuels urges everyone to think for a alternative energy sources for better power production. Vast development of power electronic converters also triggers off to find converting energy from renewable sources mostly from wind and solar basis and interfacing them with the power grid or any stand alone loads. Here the various components in...
In this research study, direct torque and flux control of induction motor drive (IMD) using artificial intelligence based speed control loop (SCL) to minimize the ripple contents of the stator current, flux and electromagnetic torque, and also improving the speed response under transient and steady state conditions. It is quite difficult to optimize the high performance of DTC of IMD with conventional...
The term “Analog” will be in history books in the near future, as the world moves completely to “Digital” domain. The technological advancements like mobile phones, laptop are all the fruitful results of Digital Communication. As the adage says, “One Man's boon is other Man's bane”, though powerful algorithms support digital communication, the hackers attack the system with its loopholes thereby enhancing...
This work investigates the effect of semiconductive nanoparticles on electrical and physical properties of insulating mineral oil (Transformer oil). Nanoparticles of TiO2, SiO2 and ZnO were separately added into the transformer oil with particle volume fractions of 0.01% and 0.075% to form Nanofluids (NFs), with an aim of enhancing critical properties of the oil. The critical properties like Breakdown...
Data mining involves analysis, extraction, refining and representation of required data from large databases. kDCI (k Direct Count and Intersect) algorithm is one of the best scalable algorithms for identifying frequent items in huge repository of data. This algorithm uses a special kind of compressed data structure which helps in mining the datasets easily. Apriori algorithm, a realization of frequent...
Parallel computing operates on the principle that large problems can often be divided into smaller ones, which are then solved concurrently to save time (wall clock time) by taking advantage of non-local resources and overcoming memory constraints. The main aim is to form a common cluster based parallel computing architecture for both MPI and PVM, which demonstrates the performance gain and losses...
Wireless Sensor Networks (WSN) is a collection of wireless sensor nodes forming a temporary network without using any established infrastructure or centralized administration. Sensor nodes are battery operated and may be mobile, critical issues is to reduce the energy conservation and prediction of node mobility to maximize the network lifetime by using limited network resources. In order to overcome...
Automatic detection and recognition of road traffic signs is an important work for regulating the traffic and guiding and warning drivers and pedestrians. The main aim of this work is to compare the performance of the road sign detection, extraction and recognition techniques and find the best one. This project investigates two techniques. In the first approach, Color Classification is used for detecting...
This research work investigates design and analysis of an optimal classifier for the categorization of handwritten Marathi consonant characters of Devnagari script using a single hidden layer feed-forward neural network with five fold cross validation. Each neural network is trained three times by varying neurons in hidden layer from 64 to 128 in steps of 16. Scrupulous experimentation around seventy...
Wireless Sensor Network (WSN) is used for collecting the information from the environment. WSN consists of large number of Sensor Nodes (SN). Each Sensor Nodes in the network are connected by a wireless Channels. The node will sense the environmental data and sends to the other sensor nodes or Base Station. During the transmission of data from one node to another node, different security techniques...
Image retrieval refers to extracting desired images from a large database. The retrieval may be of text based or content based. Here content based image retrieval (CBIR) is performed. CBIR is a long standing research topic in the field of multimedia. Here features such as texture & shape are analyzed. Gabor filter is used to extract texture features from images. Morphological closing operation...
In this paper, a micro-grid consists of clusters of load and distributed generators that operate as a single controllable system is explored by means of computer simulations. The interconnection of distributed generator to the utility through power electronics converters has raised concern about safe operation and protection of the equipment. In this work, a method for power flow control between utility...
This paper focuses the different approaches which enable wind power market to improve reliability to integrate competitive power grids economically. Wind mills are difficult to schedule due to variability and unpredictability. Now a day's Wind power market is considered as Price Taker due to the Transmission Congestions and line losses. After some decades, the loss of annual production of wind plants...
Emerging growth of information and communication technologies has influenced the research trends to focus on speech technologies. Pre-processing of speech signal serves various purposes in any speech processing application. It includes noise removal, endpoint detection, pre-emphasis, framing, windowing, echo canceling etc. Out of these, automatic word/sentence boundary detection is the fundamental...
In this paper we have shown a method by which we can determine the relationship between the time constant of the current ramp by the device and the corresponding ground and power noise of any silicon device, for a given Power Delivery network. This relationship can be used for statistical analysis of the power delivery network.
Clock signal plays a typical role in any synchronous IC design. The two important design parameters considered in clock design is clock skew and power, it has the highest switching activity and consumes major part of the total system power. As the technology shrinks, clock skew consumes larger part of clock period and also leakage power increases due to subthreshold leakage current. This paper presents...
The filter proposed in this paper has an advantage of higher frequency response and better selectivity against the classical band pass filter. A Fully Differential Current (FDC) Conveyor has been designed and it uses the application of differential difference operational floating amplifier (DDOFA) and floating current source circuits. The circuit design is synthesized using 180nm CMOS technology with...
In this paper Enhanced Phase Locked Loop (EPLL) based Shunt Active Power Filter is discussed. The performance of EPLL based system is tested under balanced and unbalanced load conditions. The EPLL is used to extract the magnitude and phase of required frequency component from input signal. The method is used in shunt active power filters to eliminate harmonics, improve power factor and correct the...
Vibrational energy is available from structures such as bridges and in many industrial and automotive scenarios and this had led to the development of novel Energy scavenging technique, that is introduced to harness ambient energy from the vibrations. Design of vibration energy harvester is done through Polypower films that act as intelligent elastics, as it is capable of generating electricity from...
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