MIT-World Peace University (MIT-WPU) is a top educational institute located in Pune, India. It is recognized within&nbsp;UGC under Government of Maharashtra Act No. XXXV 2017.&nbsp;

It is part of the MIT group of institutions (established in 1983) which covers 10+ campuses across India and has more than 50,000+ students enrolled across various disciplines at a given point of time. The institute houses 15 schools ranging from Engineering &amp; Technology, Design, Pharmacy, Commerce, Governance among others. It offers undergraduate, postgraduate and PhD programs among different disciplines.&nbsp;

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MIT World Peace University

School of Electrical Engineering

In this paper, implementation of simulation based method for harmonic reduction in solar operated system, MATLAB Simulink Software is used to do simulation T.H.D analysis is carried out not only for output load voltage but also for Active and Reactive Power. This proposed work presents the design and implementation of novel multilevel inverter technique for the solar panel. For Conversion of Voltage from DC to AC two level cascade inverters are mostly used. This two level inverter can only able to produce two different outputs or level of voltages. But THD of 2-level inverter is not so good i.e. very high, because an output voltage waveform is in the form of two levels only, to limit and reduce THD value here new multilevel inverter is presented with less number of switches. THD analysis of conventional two level and new multilevel inverter is also presented here. Pulse width modulation technique is used and explained in details. The desired AC voltage is synthesizing by using various levels of DC voltages source.

World University root node

Engineering and Technology

2019 2nd International Conference on Intelligent Computing, Instrumentation and Control Technologies (ICICICT)

Implementation of Multilevel Inverter for Harmonic Reduction in Solar PV Application

With the advent of technology, Flexible AC Transmission Systems (FACTS) are popularly used to increase the power transmission capacity of transmission lines and for optimum utilization of power system capability which result into the substantial change in system dynamics. Change in system dynamics has an impact on protection of power system as there is drastic change in the net impedance of transmission line due to FACTS devices which gives rise to over-reaching or under-reaching problem in distance protection scheme. In this paper, performance of distance relay in the presence of Static Synchronous Series Compensator (SSSC) is studied under various fault conditions. A 400kV, 300km transmission line is designed and simulated using MATLAB/SIMULINK software and results are presented to show influence of SSSC on mho characteristic of distance relay. © 2019 IEEE.

2019 IEEE 2nd International Conference on Power and Energy Applications, ICPEA 2019

Maloperation of Distance Relay under Faulty Conditions in presence of Static Synchronous Series Compensator

Hand gesture recognition is challenging task inmachine vision due to similarity between inter class samples andhigh amount of variation in intra class samples. The gesturerecognition independent of light intensity, independent of colorhas drawn some attention due to its requirement where systemshould perform during night time also. This paper provides aninsight into dynamic hand gesture recognition using depth dataand images collected from time of flight camera. It provides userinterface to track down natural gestures. The area of interest andhand area is first segmented out using adaptive thresholding andregion labeling. It is assumed that hand is the closet object tocamera. A novel algorithm is proposed to segment the hand regiononly. The noise due to ToF camera measurement is eliminated bypreprocessing algorithms. There are two algorithms which wehave proposed for extracting the hand gestures features. The firstalgorithm is based on computing the region distance between thefingers and second one is about computing the shape descriptor ofgesture boundary in radial fashion from the centroid of handgestures. For matching the gesture the distance between twoindependent regions is computed for every row and column. Sameprocess is repeated across the columns. The number of totalregion transitions are computed for every row and column. Thesenumber of transitions across rows and columns forms the featurevector. The proposed solution is easily able to deal with static anddynamic gestures. In case of second approach we compute thedistance between the gesture centroid and shape boundaries atvarious angles from 0 to 360 degrees. These distances forms thefeature vector. Comparison of result shows that this method isvery effective in extracting the shape features and competentenough in terms of accuracy and speed. The gesture recognitionalgorithm mentioned in this paper can be used in automotiveinfotainment systems, consumer electronics where hardwareneeds to be cost effective and the response of the system should befast enough.

Fulltext

International Journal of Engineering and Advanced Technology (IJEAT)

Real Time Static Gesture Recognition using Time of Flight Camera

In this paper the test set up is developed in which there is a provision of various surface roughnesses in the test set ups. In the test set ups there is a provision of sea sand, river sand, river pebbles of various sizes, grass, building models of various heights, hills models of various heights and slopes and offshore environment with artificial water waves is available. The main idea in this patent is that various types of surface roughness are created in the wind turbine test set up. The onshore environment can be created by using trays of sand of various sizes. The offshore environment can be created by using a tray of water at the bottom of the test set up. Artificial waves of water are created by a motor coupled with four longitudinal cups welded together and mounted on a shaft. Because of this continuous waves are produced. Another method of producing waves is that use a surface with inverted V all along the surface. The water is needed to move continuously with the help of a pump. This will also create the waves. The impact of wave height on flicker will be observed. For the surface of grass actual grass tiles may be fixed on the surface of the wind turbine test set up. For river bank surface, sand and pebbles of river can be kept at the bottom of the test set up. © 2017 IEEE.

2017 International Conference on Energy, Communication, Data Analytics and Soft Computing, ICECDS 2017

Laboratory model of surface roughness to test wind turbine voltage flicker

In this paper high frequency induction heating is used for deicing the wind turbine blade. Copper coils are embedded in the blade. To one coil high frequency supply is given. Another coil is shorted. The heat is generated in the coil due to induction principle. The wind turbine blade is heated. Due to heat the ice accumulated on the blade is melted and is removed. There is a good control on the amount of heat production in the blade. Due to coil the strength of the blade is also increased. © 2017 IEEE.

Ice elimination from wind turbine blade using induction heating

In this Paper various types of tower models are developed. This tower can be tested in the test set up for different wind conditions. Tubular tower, lattice tower, guyed wire tower are developed in the tests up. These towers can be tested for various wind conditions. Any other new designed tower also can be tested in the test set up. For any given wind conditions and surface roughness the performance of the tower can be observed. The flicker initiated in the wind turbine for various configurations of the tower can also be found. The lattice tower is made of steel bars. The tubular and guyed wire tower is made of steel cylinder. Any suitable material can also be used to build the tower. The towers are scaled down models. Tower models are tested in the laboratory. The results can be scaled up according the actual wind farm conditions and height of the tower. Suitable tower can be selected for particular area. © 2017 IEEE.

Laboratory test set up to study wind turbine tower models

In this paper the blade fitting mechanism is developed. In this mechanism various types of blades can be fitted. The pitch angle of the blade can also be varied. Cylinders are welded to the hub. Another cylinder with small diameters is welded to a metallic square strip is welded to the blade with one square plate. This small cylinder is concentric to the cylinder which is welded to the hub. Blade can be fixed to the small cylinder using nut and bolt arrangement. The blade can be changed. The blade of desired shape can be fixed to the cylinder. The pitch angle of the blade can be changed by rotating the concentric cylinder. The holes are drilled along the length of both the cylinders. The holes are also drilled along the periphery of the cylinder. The pitch angle can be fixed by nut and bolts passing through the holes of the cylinders. The pitch angle for all three blades is kept constant. This mechanism can be placed in the laboratory test set up. Artificial wind can be created using blower fans. The impacts of blade shape and pitch angle on the output voltage flicker can be observed on digital storage oscilloscope. © 2017 IEEE.

Wind turbine blade fixing mechanism

In this paper a point source of air is used to create wind shear. Two point sources of air are used. The wind speed achieved with point source is about 30 m/s. The point sources are kept at some distance to avoid high speed. The speed of the wind from the point source is controlled by a speed regulator. One point source is kept on the upper side of the test set up. Second point source is kept at the lower side of the point source. The speed of the wind from point source is controlled. The speed of the wind from the upper point source is kept high. Different wind shear conditions are created. The impact of wind shear on various power quality parameters may be observed using this set up. The impact of vertical wind shear on voltage flicker produced in a wind turbine is observed. © 2017 IEEE.

Wind turbine model testing using point source of air to create wind shear

In this invention the wind turbine is made from bamboo. Various types of bamboos are available. Hollow bamboo cut along the length may be used to form wind turbine blade. The gap between the two bamboos may be filled with some filler material. This prevents the air to pass between the two bamboos. The bamboo may be fixed with each other by using nails. Natural fibers may also be used as a binding material for bamboos. Suitable glue may also be used. The blades are cut in required shape. Wind turbine blades of horizontal axis as well as vertical axis may be made from the bamboos. © 2017 IEEE.

Use of bamboo for constructing ecofriendly wind turbine

This paper gives details of facility to test wind generator in the laboratory. Various types of prime movers may be used in the test set up. These prime mover motors can be DC motor, induction motor, synchronous motor or permanent magnet synchronous motor. The generator may be any kind of generator like DC generator, induction generator, synchronous generator, permanent magnet synchronous generator etc. The speed of the prime mover motor is varied. As the generator is coupled with the motor speed of the generator is also varied. The speed of the generator is varied over a wide range. The impact of the change in the speed of the generator on the output and output voltage flicker is observed. The gear box is also provided. It can be connected in between the generator and the motor. So the speed of the generator is increased. The impact of gear box on the power quality also can be observed. The test is carried on the generator with and without gearbox. The impact of gear box and variation in the speed on the flicker initiated in the wind turbine can be observed. © 2017 IEEE.