Engineering

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BATTERY HEALTH MONITORING FOR MINI HYBRID POWER SYSTEM USING LABVIEW

Author(s):N DINESH KUMAR, SAHITH GATTU, U SHASHANK, ABHINAV DINESH
Journal: International Journal of Electrical and Electronics Engineering Research
Publisher:TJPRC Pvt Ltd.
Abstract
| Pages: 29-34
Power has become the main source to run this present world. Due to lack of resources production of electricity is falling drastically day by day. The objective of this paper is to control the position of a solar panel in accordance with the motion of sun and also wind energy. Micro controller is used to control or regulate the position of solar panel according to the direction and movement of sun. In this process solar panel is used as sensor which absorbs the solar energy and converts solar energy to Direct Current (DC). Thus obtained Direct Current can be converted to Alternative current using AC/DC converters and can be used for various household power supplies and for other activities. Wind energy is also converted into DC. In order to obtain the health condition of the battery in the process, Sensors are connected to DAQ module which in turn programmed by LabView for lossless power generation.

REGENERATIVE BRAKING FOR AN ELECTRIC VEHICLE USING HYBRID ENERGY STORAGE SYSTEM

Author(s):VIVEK KUMAR YADAV, NAVJOT BHARDWAJ
Journal: International Journal of Electrical and Electronics Engineering Research
Publisher:TJPRC Pvt Ltd.
Abstract
| Pages: 35-42
This paper presents study and implementation strategy for deploying regenerative braking system in vehicles with hybrid energy source. Intelligent electronic control strategy for the whole process using Buck-Boost Converter is given, further it encapsulates elements of structure of regenerative braking system. Application of super capacitors as power buffer to minimize rapid power fluctuation under acceleration/deceleration and properties of super capacitors which makes it suitable for regenerative energy recapture are also stated.

CONVERSION OF MULTI INPUTS TO MULTI OUTPUTS USING SWITCHED CAPACITOR

Author(s):G. BHARATHI, V. S. VIJAYA DURGA
Journal: International Journal of Electrical and Electronics Engineering Research
Publisher:TJPRC Pvt Ltd.
Abstract
| Pages: 43-50
Recent developments in sustainable energy sources such as fuel cells and photo voltaic (PV) have brought challenges to the design of power conversion systems. These power systems will require interfacing of various energy sources. To enable multi-source technology, a multi-input power converter is of practical use. An ideal multi-input power supply could accommodate a variety of sources and combine their advantages. Traditionally transformer based or inductor based Multi port networks have been used, but they occupy more space and losses are also high. So to overcome this, in this paper, a switched capacitor voltage copier (SCVC) is introduced, which has less number of components. So, this SCVC requires less space and the losses are also less. But, if the voltages are high, then the switches will be operated in hard switching and electromagnetic interference will be introduced in the circuits. In order to avoid this, resonant circuits are implemented. The simulation results verify the performance of voltage copier.

MITIGATION OF VOLTAGE VARIATIONS IN GRID CONNECTED WIND FARM SYSTEM

Author(s):D. P. KADAM, B. E. KUSHARE
Journal: International Journal of Electrical and Electronics Engineering Research
Publisher:TJPRC Pvt Ltd.
Abstract
| Pages: 51-58
Injection of wind power into an electric grid affects the power quality and reactive power issues at the connected electric network. Power quality problems such as voltage sag and swell are some major concern. In this paper these issues are analyzed. Wind turbine connected to squirrel cage induction generator is modelled using PSCAD simulation software to analyse the said issues where STATCOM is introduced as an active voltage and reactive power supporter to increase the power system stability. STATCOM unit is developed to inject reactive power for mitigation of power quality problems and to get stable grid operation.

APPROACH TO DESIGN GREATEST COMMON DIVISOR CIRCUITS BASED ON METHODOLOGICAL ANALYSIS AND VALUATE MOST EFFICIENT COMPUTATIONAL CIRCUIT

Author(s):DARSHANA UPADHYAY, JAHANVI KOLTE, KRITIKA JALAN
Journal: International Journal of Electrical and Electronics Engineering Research
Publisher:TJPRC Pvt Ltd.
Abstract
| Pages: 59-66
In elementary arithmetic, the greatest common divisor is used to simplify expressions by reducing the size of numbers involved. Greatest common divisor (GCD) of given numbers is the largest number that divides all of the given numbers without leaving any remainder. This paper presents the hardware simulation of different methods employed to compute Greatest common divisor of any two numbers (8-bit binary) in simulator. For this purpose, four different methods were worked out, of which, three were dynamic implementations namely, Euclid’s method, Divisibility Check Method, Dynamic modulo and one was static implementation, static modulo method. These algorithms were then compared for their space & time complexity. For Space complexity, number of different components, like basic gates, memory units, plexers, arithmetic operation units, etc. used were compared and for time complexity, clock pulses required were measured for a few set of numbers.

CHARACTERIZATION OF DENSE OSTEOBLAST PORE CURRENT IN A 3D MICROCHIP

Author(s):S. SARKAR, R. MAHAPATRA, S. DAS
Journal: International Journal of Electrical and Electronics Engineering Research
Publisher:TJPRC Pvt Ltd.
Abstract
| Pages: 67-86
We report the numerical characterization of Pore current of dense osteoblast cell in a micro chip at radio frequency is studied. The effects of electrical nsPEF, electrode configuration, micro channel dimension and property of suspension media on bi-layer osteoblast cell were investigated. In this context It is observed that the efficient outer layer electroporation occurs in micro meter pulse duration and in inner layer with Pico scale pulse duration although pulse interval is micro scale in both cases. We also find that the pore current is sinusoidal distributed over the layers .The pore current is minimum at pole which is independent of specification of electrical pulse, geometry of electrode, dimension of micro channel & property of suspension media. But their value depends on the above parameters. So the region near by the are assigned as high permeable area of the osteoblast cell. It is also exposed that value of pore current for outer membrane is lower than inner membrane with same specification. It reflects the rigidity of outer membrane of osteoblast cell. We also consider the effect of neighbour cells on membrane surface tension to make the result more important and realistic.

ADVANCE FEATURE EXTRACTION OF MRI BRAIN IMAGE AND DETECTION USING LOCAL SEGMENTATION METHOD WITH WATERSHED

Author(s):S. SIVAPERUMAL, M. SUNDHARARAJAN
Journal: International Journal of Electrical and Electronics Engineering Research
Publisher:TJPRC Pvt Ltd.
Abstract
| Pages: 87-94
Segmentation is the process of separate an observed image into its homogeneous or constituent regions. Image segmentation, feature extraction and detection form a fundamental problem in many applications. The approach used in this work is based on the watershed segmentation. In this paper we proposed a regional contrast based saliency extraction algorithm to detect the tumours. Watershed segmentation classifies pixels into regions using gradient descent on image features and analysis of weak points along region boundaries. The principle of this method states that the step is processing a pixel to segment the local region encompassing that pixel. This provides a snapshot of the local structural features of the image with the signal clearly separated from the noise. The lower level is local segmentation which operates in a purely local manner using only a small number of pixels. The higher level is global segmentation which attempts a group together related pixels throughout the image. The highest level is object recognition, whereas global segments are combined into logical units representing real world objects of interest. It gives higher precision and better recall rates.

STUDY OF ELECTRICAL AND THERMAL PERFORMANCE OF A HYBRID PVT COLLECTOR

Author(s):H. BEN CHEIKH EL HOCINE, M. MARIR-BENABBAS
Journal: International Journal of Electrical and Electronics Engineering Research
Publisher:TJPRC Pvt Ltd.
Abstract
| Pages: 95-106
The combination of renewable energy sources to optimize the maximum power generation systems, both from technical and economic point of view. The hybrid photovoltaic / thermal (PV/T) collector converts solar energy into heat and electricity. We present in this article, a study of the electrical and thermal performance of a hybrid collector through the development of a heat balance that involves heat exchange between the different components of hybrid collector. The results suggest that this type of collector is a good alternative to photovoltaic modules and thermal collectors installed separately.

MINIMISATION OF LOSSES AND COST IN A DEREGULATED POWER SYSTEM USING PARTICLE SWARM OPTIMIZATION

Author(s):G. KALIDAS BABU, A SANTOSH KUMAR, S. RAJESH KUMAR
Journal: International Journal of Electrical and Electronics Engineering Research
Publisher:TJPRC Pvt Ltd.
Abstract
| Pages: 107-116
Voltage control is accomplished by managing reactive power on an alternating current power system. Reactive power can be produced and absorb by both generation and transmission equipments. The transmission towers, customers, power marketers and government regulators need to pay very close attention to voltage control as the reactive power devices varies substantially in the magnitude and speed of response and in their capital costs. The amount of reactive power requirements are calculated using particle swarm optimization (PSO) and for optimizing system loss taking the objective function as minimization of network loss and total reactive power capital cost with the help of IEEE 30 bus system and verify the solution with optimal power flow and genetic algorithm techniques.
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