Engineering Commons^™

Influence Of Environmental Dust On The Operating Characteristics Of The Solar Pv Module In Tripura, India, Innovative Research Publications Irp India, T. Bhattacharya, A. K. Chakraborty, K. Pal

Innovative Research Publications IRP India

The production of PV power depends on different meteorological parameters. Accumulation of dust is one of the factor which reduces the output power. The recent study was done in Tripura, India and there is maximum of 13% and minimum of 9% reduction in efficiency has been observed during the period of experiment

A Stand Alone Robust Pv-Fc-Eletrolyzer Utilization Scheme, Innovative Research Publications Irp India, Maged N. F. Nashed Mona Eskander, Adel M Sharaf ,Life

Innovative Research Publications IRP India

A stand-alone efficient robust photovoltaic (PV)- Electrolyzer Scheme using a PV-Array, a DC-DC buck-boost converter, an Electrolyzer, a hydrogen tank, and an additional Fuel Cell (FC) stack feeding an standalone autonomous load is investigated and validated for efficient energy utilization, voltage stabilization and maximum power point tracking (MPPT) of the PV array under different insolation and temperature variations. The DC-DC Converter by controlled to ensure stable regulated operation. The PV generated power is used to electrolyze water to Hydrogen H2 and Oxygen O2, where hydrogen is stored in a suitably sized tank to be used later for the PEM-Proton Exchange …

Fundamentals And Applications Of Transducers Technology And Sensors In Measuring Methodology, Innovative Research Publications Irp India, Nwosu, A.W., Eke, V.O.C.

Innovative Research Publications IRP India

This paper deals on fundamentals and application of transducer technology and sensors in measuring techniques. Emphasis are laid on the principles of sensors and transducer technology, its application in measurement and their significance in data acquisition for micro-computer data based machine or automatic control systems .More so, the discussion exclusively appended improved applications of technology, expect and remote control systems.

Crack Detection Of Medical Bone Image Using Contrast Stretching Algorithm With The Help Of Edge Detection, Innovative Research Publications Irp India, Shubham Yelne, Rupali Tomar, Ankush Jadhao, Roshan Boriwar

Innovative Research Publications IRP India

The purpose of this project is to find out the accuracy of an X-Ray Detection of crack Bone using Canny Edge Detection Method. Cracked bone is a bone condition that suffered a breakdown of bone integrity. Normally, bones have elasticity and a great number of strength. Crack in the Bone only happen when the bones took a force beyond their elasticity or strength .Canny Edge Detection method is an optimal edge detection algorithm on determining the end of a line with changeable threshold and less error rate. The proposed algorithm simulate on MATLAB 12-b and results have shown how canny …

Sensorless Passivity Based Control Of A Dc Motor, Innovative Research Publications Irp India, Seethamathavi M., Vignesh T.

Innovative Research Publications IRP India

In last couple of decades, the control of motors has increased drastically. With this increase, current control techniques are developed. In sensor-less passivity control of a DC Motor the term passivity means the property of stability in an input and output. To maintain the stability at the input side the solar pv panel is connected with MPPT which extract maximum and stable voltage. For output we simultaneously regulate, both, the output voltage of the SEPIC-converter to a value larger than the solar panel output voltage, and the speed of motor, in any of the turning senses, so that it tracks …

Fuzzy Logic System For Fetal Heart Rate Determination, Innovative Research Publications Irp India, Udo, E.U, Oparaku, O.U.

Innovative Research Publications IRP India

This paper focuses on the Fuzzy Logic System for fetal heart rate determination. The clinical interpretation of fetal heart rate trace is a difficult task and this has led to the development of computerised systems. These systems are limited by their inability to represent uncertainty. This paper describes the development of a fuzzy expert system for fetal heart rate. The fuzzy logic system improved on the crisp system and has achieved the highest overall performance. With the results obtained, it is evident that the fuzzy logic system can be used to improve the efficiency of the clinician position for making …

Sensitivity Based Network Contingency Ranking Using Newton Raphson Power Flow Method, Innovative Research Publications Irp India, M. K. Maharana, Samrat Malakar

Innovative Research Publications IRP India

In the area of power system planning and operation, contingency analysis plays an important role. In the present days, on-line security assessment is done by contingency ranking, with the help of various computer software, incorporating iterative method like Newton Raphson power flow for obtaining the magnitudes of different parameters. The motive of contingency ranking is to create a short list of potential contingencies quickly and rank them according to their severity in an accurate manner. In this paper sensitivity based wide performance index with respect to outage have been presented. The Newton-Raphson power flow results were used to construct two …

Design Of A Graphical User Interface To Control Voltage And Reactive Power By Using Nine-Area Diagram, Innovative Research Publications Irp India, Chi-Jui Wu, Yu-Wei Liu, Chun-Hsiang Hu, Ming-Ghe Shiha, Jr-Yuan Ke, Yu-Wei Chou

Innovative Research Publications IRP India

For a primary substation (P/S), there are many typical methods to control voltage and reactive power such as adjusting the generator mode, switching shunt capacitor (SC), adjusting on-load tap changer (OLTC), and switching shunt reactor (SR). In this study, a graphical user interface (GUI) is designed combining with nine-area diagram to observe the relationship between voltage and reactive power in a P/S. This GUI not only predicts the effect to dispatchers in short time but also analyzes the sensitivity parameters. Field measurement data were analyzed. Simulation results confirmed the feasibility of compensating the reactive power and adjusting voltage simultaneously.

Self-Regulated Solar Lighting System, Innovative Research Publications Irp India, Mr. Ramesh C R, Prof.Lyla B Das

Innovative Research Publications IRP India

Electricity is a prime concern in today’s world. On observing the path through which we travel daily we can see that a lot of electricity is wasted by glowing sodium wafer lamps and even the traditional tube lights on the electric posts at unnecessary intervals. The self regulating solar system enters into action and exits from functioning depending upon the output from the Day/Night sensing unit. Once the unit indicates arrival of night then the system turns ON, the controlling unit thereafter controls the illumination level of the lamp depending upon the outputs of interruption detector, temperature sensor & real …

A Constrained Genetic Algorithm Based On Constraint Handling With Ks Function And Grouping Penalty, Innovative Research Publications Irp India, Jiang Zhansi, Jiang Yulong, Ma Liquan, Feng Jianguo

Innovative Research Publications IRP India

In order to overcome the limitation when using traditional genetic algorithm in solving constrained optimization problems, this paper presents a new method of constrain handling to solve the constrained optimization problems. Firstly, the method makes full use of the condensed characteristics of the KS function to transform multi-constrained optimization problem into a single constraint optimization problem. And then a group penalty method is adopted by genetic algorithm. Aggregate constraint reduces the solution scale effectively and improves the efficiency of searching for global optimization solution. The method of penalty in grouping is used to overcome the difficulty of penalty coefficient selection …

Application Of Electromagnetic Waves In Blood Disorders And Diseases Diagnosis, Hossein Ameri Mahabadi, Hadi Aliakbarian, Mahmoud Moghavvemi

Hossein Ameri Mahabadi

Electromagnetic Waves have various application in different areas of science and technology. Beside its main application in telecommunication, several other fields of applications such as agriculture [1], food [2], and health[3] have been proposed.

The latter, the non-ionizing application of electromagnetic waves, is the main focus of our chapter. This applications are of two types, either medical treatment or biomedical diagnosis of health problems. The latter such as non-contact detection of the vital signs), imaging (noninvasive breast cancer detection), medical sensors (such as those for identifying cancer cell aggressiveness grade), and measurement techniques for the electromagnetic exposure of biological cell …

Embedded System Based Sensor Failiure Detection And Industrial Environment Controll Over Wireless Network, Innovative Research Publications Irp India, Ravishankar A, Pandian R

Innovative Research Publications IRP India

This paper focus on sensor nodes failure detection monitoring and control process via GSM and ZIGBEE wireless module. The virtual instrumentation process does measure the sensor node characteristics value and control the environment by wireless network. The industrial need does uses four types of sensor gas, radiation, temperature, and smoke sensors. The error occurrence does it’s to be detected and it will be control by the ARM controller. The performances measures does it can be monitor and also be indicated and also be control through the WSN network. The data logging of sensor monitoring and its control functions are realized …

Dynamic Channel Allocation Technique For Distributed Multi-Radio Multichannel Multi-Path Routing Protocol In Wireless Mesh Networks, Innovative Research Publications Irp India, Shreenidhi. P.L, Ranganath H R, Puttamadappa C, Basavaraju T G

Innovative Research Publications IRP India

Wireless Mesh Networks (WMNs) have gained main attraction in providing flexible network services and support to the end users. There are many efforts seen to design robust routing protocol for WMNs and solutions are proposed to standardized channel allocation techniques. There are various approaches dedicated to maximize the network though put and minimize network interface. Existing multi radio multi channel routing protocols utilize only single channel situation and static channel allocation degrades the performance of the WMNs. The challenge is to allocate channel without link interference and to improve end-to-end throughput efficiency in multipath routing for WMNs. In this paper, …

- Software Reuse, Component Clustering, Faceted Classification, Grade Strategy., Innovative Research Publications Irp India, Syed Misbahuddin

Innovative Research Publications IRP India

Some Embedded systems involve multiple processors connected by a communication medium. These processors communicate with each other exchanging short messages using some message based communication protocols such as Controller Area Network (CAN), SAE J1939 etc. With the induction of new features inside such networks, the number of messages will increase. The increase of messages may affect the network performance for a given network characteristics. Performance evaluation of a message based networks is therefore desired with increasing message load. This paper presents the performance evaluation of message based embedded communication networks. Several parameters have been estimated as function of number of …

Artificial Bee Colony-Based Design Of Optimal On-Line Self-Tuning Pidcontroller Fed Ac Drives, Innovative Research Publications Irp India, Essamudin A. Ebrahim

Innovative Research Publications IRP India

In this paper, an optimization method based on the foraging behavior of a colony of honey bees in nature was proposed. An optimized model for Proportional Integral Derivative (PID)- speed controller of 3-phase IM drives was introduced to adapt the constant gains of this classical controller. To enhance robustness of this controller, an online algorithm for self-tuning of PID controller-parameters was proposed. Experimental work was introduced using DSP and test results were obtained for several speed trajectories of 2-degree of freedom IM drive and compared with conventional PID controllers.

A Fast-Converging Mppt Technique For Photovoltaic System Under Fast Varying Solar Irradiation And Load Resistance, Saad Mekhilef

Saad Mekhilef

Under fast varying solar irradiation and load resistance, a fast-converging maximum power point tracking system is required to ensure the photovoltaic system response rapidly with minimum power losses. Traditionally, maximum power point locus was used to provide such a fast response. However, the algorithm requires extra control loop or intermittent disconnection of the PV module. Hence, this paper proposes a simpler fast-converging maximum power point tracking technique, which excludes the extra control loop and intermittent disconnection. In the proposed algorithm, the relationship between the load line and the I–V curve is used with trigonometry rule to obtain the fast response. …

A 12-Sector Space Vector Switching Scheme For Performance Improvement Of Matrix Converter Based Dtc Of Im Drive, Saad Mekhilef, Sina Sebtahmadi

Saad Mekhilef

No abstract provided.

Dg Mosfet, Mojtaba Mehrdad Nasehi Phd In Electronics, Computer Networks

mojtaba nasehi

No abstract provided.

Method Of Fabricating A Polarized Color Filter, Fang-Tzu Chuang

Fang-Tzu Chuang

A method of fabricating a polarized color filter wherein a transparent substrate is provided and coated with a photoresist layer. A wave-shaped mask may then be prepared and a periodic wave-shaped surface may be placed in contact with the photoresist layer, treating the photoresist layer with a primary exposure process. An external force may be applied to the wave-shaped mask, and the transparent substrate or wave-shaped mask by be rotated by a predetermined degree. The photoresist layer may be treated with a secondary exposure process, wherein the photoresist layer is developed in order to obtain a photoresist pattern layer. A …

Mems, Mojtaba Mehrdad Nasehi Msc In Electronics, Computer Networks

mojtaba nasehi

No abstract provided.

Novel Configuration For Multilevel Dc-Link Three-Phase Five-Level Inverter, Saad Mekhilef

Saad Mekhilef

new multilevel DC-link three-phase five-level voltage source inverter topology is introduced here. A multilevel DClink formed from single DC voltage supply and two cascaded half-bridge (CHB) power cells is connected to 12-switch threephase bridge in such a way that the proposed inverter produces five levels in the output voltage waveform. Compared to comparable inverters, such as symmetrical CHB and hybrid multilevel inverters, the proposed topology maximises the number of voltage levels and reduces the number of utilised DC voltage supplies, switches, gate driver circuits and installation area. A modified fundamental frequency modulation technique based on determination of switching states of …

Correlation Between Energy Distribution Profile And Lev El Of Consciousness, D. K. Chaturvedi Dr.

D. K. Chaturvedi Dr.

The purpose of this experimental study was to determine the energy levels corresponding to the different focal points (Chakras or centers) of the body, which is related with consciousness. In this experiment, the energy level is measured at four different centers, namely, the navel center, the heart center, the throat center and the eye center of the Human beings. The measurements have been taken using Energy Measurement System (EMS) developed at Department of Electrical Engineering, Dayalbagh Education Institute, Dayalbagh, Agra, India, which works on the principle of tissue resistance of body. The probe was placed at different centers and subsequent …

Modified Incremental Conductance Algorithm For Photovoltaic System Under Partial Shading Conditions And Load Variation, Saad Mekhilef

Saad Mekhilef

Under partial shading conditions, multiple peaks are observed in the power–voltage (P–V ) characteristic curve of a photovoltaic (PV) array, and the conventional maximum power point tracking (MPPT) algorithms may fail to track the global maximum power point (GMPP). Therefore, this paper proposes a modified incremental conductance (Inc Cond) algorithm that is able to track the GMPP under partial shading conditions and load variation. A novel algorithm is introduced to modulate the duty cycle of the dc–dc converter in order to ensure fast MPPT process. Simulation and hardware implementation are carried out to evaluate the effectiveness of the proposed algorithm …

Long-Term Wind Speed Forecasting And General Pattern Recognition Using Neural Networks, Saad Mekhilef

Saad Mekhilef

Long-term forecasting of wind speed has become a research hot spot in many different areas such as restructured electricity markets, energy management, and wind farm optimal design. However, wind energy with unstable and intermittent characteristics entails establishing accurate predicted data to avoid inefficient and less reliable results. The proposed study in this paper may provide a solution regarding the long-term wind speed forecast in order to solve the earlier-mentioned problems. For this purpose, two fundamentally different approaches, the statistical and the neural network-based approaches, have been developed to predict hourly wind speed data of the subsequent year. The novelty of …

Over Look To Genetic Algorithm, Ata Jahangir Moshayedi

Ata Jahangir Moshayedi

Over look to Genetic algorithm

Direct Power Control Of Dfigs Based Wind Energy Generation Systems Under Distorted Grid Voltage Conditions, Emad Gameil Shehata E. G. Shehata

Emad Gameil Shehata E. G. Shehata

This paper presents an improved direct power control (DPC) strategy of a wind turbine driven doubly fed induction generators (DFIGs) connected to distorted grid voltage conditions. A coordinate control strategy of the grid side converter (GSC) and rotor side converter (RSC) of the DFIG is designed to improve the overall scheme performance. The RSC is controlled based on a DPC principle to eliminate the electromagnetic torque and stator reactive power oscillations. The total active and reactive power oscillations are compensated by the GSC control to achieve constant active and reactive powers from the overall DFIG system. A current control scheme …

Fabricate A 2.4-Ghz Fractional-N Synthesizer, Hossein Ameri Mahabadi, Mahmoud Moghavvemi, A Attaran

Hossein Ameri Mahabadi

No abstract provided.

A 6-U Commercial Constellation For Space Solar Power Supply To Other Spacecraft, Corey Bergsrud, Jeremy Straub

Jeremy Straub

This poster presents early stage planning for a constellation

of 6-U CubeSats which will collect power from

the sun and supply it to other spacecraft in Earth orbit. Unlike

solar panels (which have a known decay rate), antenna

systems (such as would be required to receive microwavetransmitted

power) do not substantially decay over the

typical (or prospectively extended, under this model)

spacecraft lifetime. This allows a spacecraft to be built for

long-term operations (utilizing an electric propulsion technology

and/or a greater supply of conventional propellant)

and receive power from a lower-cost utility provider

spacecraft, which can be replaced on a …

Novel Three-Phase Asymmetrical Cascaded Multilevel Voltage Source Inverter, Saad Mekhilef

Saad Mekhilef

Series connection of power cells in asymmetrical cascaded configurations helps to cancel redundant output levels and maximise the number of different levels generated by the inverter. A new configuration of three-phase multilevel asymmetrical cascaded voltage source inverter is presented. This structure consists of series-connected sub-multilevel inverters blocks. The number of utilised switches, insulated gate driver circuits, voltage standing on switches, installation area and cost are considerably reduced. Cascaded-cell DC voltages in each inverter leg form an arithmetic sequence with common difference of E. With the selected inverter DC sources, high-frequency pulse-width modulation (PWM) control methods can be effectively applied without …

Optimal Control Of A Grid Connected Photovoltaic System With Constant Switching Frequency, Djamila Rekioua Pr

REKIOUA Djamila Dr

This paper presents maximum power point tracking (MPPT) algorithms for grid connected photovoltaic system. Due to the instantaneous changing of solar irradiance and temperature, it is desirable to determine the optimal voltage that ensures maximum energy yield. In order to optimize the photovoltaic energy generation, the MPPT is integrated in the inverter control. Perturb & Observ (P&O), Incremental Conductance (Inc Cond) techniques and fuzzy logic controller (FLC) are applied. A comparison shows the effectiveness of the FLC. The maximum power generated by the photovoltaic system is sent to the power grid to be consumed by the nearest customers. A constant …