PV-grid Performance improvement through Integrated Intelligent Water Drop Optimization with Neural Network for Maximum Power Point Tracking
A Digital Healthcare Monitoring System with Real-Time Analysis
Advancements in Smart Meter Design and Integration for Enhanced Energy Management and Efficiency
Electric Vehicles in Modern Transportation: Environmental Impacts, Configurations, and Future Trends – A Review
GTO Technique Based Hybrid Power System Controller Design
Design and Development Of Paddy Cutter Using Solar Energy
Design Of Double-Input DC-DC Converter (DIC) Solar PV-Battery Hybrid Power System
Comparison of Harmonics, THD and Temperature Analysis of 3-Phase Induction Motor with Normal Inverter Drive and 5-Level DCMI Drive
Application of Whale Optimization Algorithm for Distribution Feeder Reconfiguration
Detection and Classification of Single Line to Ground Boundary Faults in a 138 kV Six Phase Transmission Line using Hilbert Huang Transform
The Modeling of Analogue Systems through an Object-Oriented Design Method
Circuit Design Techniques for Electromagnetic Compliance
A Technological Forecast for Growth in Solid-State Commercial Lighting using LED Devices
Testing of Analogue Design Rules Using a Digital Interface
Simulation and Transient Analysis of PWM Inverter Fed Squirrel Cage Induction Motor Drives
This paper aims to study of harmonic, Total Harmonic Distortion (THD) and temperature reduction of Five Phase Induction Motor (FPIM). Industries prefer power quality designs with less harmonic standards, less power dissipation, the motors must have a long lifetime for the industrial applications. The super imposition of harmonic distortion affects the system completely by harming the AC output voltage waveform of the PWM inverter drive results in reducing its performance, lifetime of the device, overheating and additional losses will be induced into the system and therefore it is necessary to remove the harmonics at the output of the inverter. Many techniques are used to minimize these harmonics, typical method to mitigate the harmonic distortion is the filter method, LC filter is the most commonly used filter to suppress the harmonics. Experimental investigation of Five Phase Inverter Drive (FPID) with LC filter with delta capacitor model is constructed to study the harmonics and THD, the obtained results are extended to study the temperature of the FPIM and compared with predicted temperature at different locations of FPIM at low speed. It is found that drastic reduction of temperature at various parts of the induction motor are validated by the results.
The main aim of this paper is to provide a facility to farmers in harvesting the paddy crop at low cost by using the solar energy. A design for a crop multipurpose cutting machine was developed. The proposed design of machine is very simple, robust and easy to operate. It has been designed and tested in the real time paddy crop harvesting effectively with low cost and it does not contribute to greenhouse gas emission. Also it has been examined for harvesting various crop varieties and reduces operation time & cost.
This manuscript proposes a novel technique to solve the feeder reconfiguration problem with an objective of minimizing total real loss and maximizing energy savings in a radial distribution system. Feeder reconfiguration (FRCG) is a significant way of altering the power flows through the lines or to alleviate the overloads on the feeders, while maintaining the radial structure. To ensure the radial nature and avoid islanding of nodes, all feasible switching combinations are formed prior to the optimization process using a graph theory. This FRCG problem enables for determining the best combination of switches are to be opened for maximum loss reduction and energy savings, so it offers optimal performance. A Meta-heuristic Whale Optimization (WOA) Algorithm is used to reconfigure and identify the optimal secure switches for maximum real power loss reduction, which directs to energy savings in the main distribution system. The constraint of real power loss is incorporated into the estimation of the objective function. The anticipated method has been examined on standard 33-node and 119-node systems at regular load pattern, where attained results are compared by means of available literature.
QZSI is a good choice between input DC source and inverter network. This paper deals with modeling and simulation of QZSI Fed Induction Motor (QZSIFIM) with resonant arm & OTT filters. DC is applied to the inverter through a QZ network. The output of three phase inverter is filtered before it is applied to a three phase induction motor. QZSIFIM system with resonant arm and OTT filters are modeled and simulated using matlab. The comparison of these systems is made in terms of voltage THD, current THD & output power. The comparison indicates that QZSIFIM system with OTT filter delivers higher power with reduced THD.
The electric drives used in industries have adjustable speed drives, where AC Induction motors are used in most of these drives. Due to their low cost, reliability, and performance, they find application in a variety of domains. A number of techniques are reported in the literature for control of induction motor drive. Amongst them, the most advanced and popular technology is the Direct Torque Control (DTC) drive. The control strategy of DTC Induction motor drive requires estimation of torque and flux. The estimation of flux depends on stator resistance (Rs). During drive operation, the motor temperature increases. With increase in motor temperature, the Rs increases and it is found that the change in Rs is normally in between 0.75 to 1.7 times to its normal value. This leads to erroneous flux estimation leading to high flux and torque ripple. Therefore, an online estimation of Rs is required for robust performance of DTC drive. In this paper, the estimation of Rs based on the variation of stator current is proposed. The estimation is based on model reference adaptive system with the adaptive mechanism using the Proportional Integral (PI) and Fuzzy Logic Controller (FLC). The performance of the DTC drive using the two different adaptive mechanisms is compared and the results obtained show improved performance in terms of motor speed, torque, and flux developed despite changes in Rs .
In this paper, authors are reporting the generation of gating pulses for Voltage Source Inverter using microcontroller to drive PMBLDC motor. Gating pulse generation takes places with the help of emulated hall sensor output. These Hall sensor signal produced by microcontroller remain high for 180o electrical angle. It remains low for next 180o electrical angle. The Hall sensor output shows a phase shift of 120o in each signal. Designated algorithm exhibits that frequency of gating pulses strongly depends upon the frequency of emulated hall sensor. The present study can provide significant information in the analysis of Voltage Source Inverter without connecting the PMBLDC motor. Effectiveness of the proposed method are validated and proved by experimental data.
The renewable energy sources, such as Solar Photovoltaic (SPV) systems, when working alone, are regarded greatly insufficient and suffers from poor reliability, sustainability and substantiality in terms of stability in energy density and efficiency of the supply system. The present work focuses on the designing of power-electronics-based-converter-system to integrate and harvest energy from two different sources working with different voltage–current characteristics. As a result, the work listed in this paper involves designing of a double input DC–DC converter for integrating an SPV system with a storage battery system. The proposed converter bears the advantage of loading the hybridized sources either discreetly or concurrently with the provision of combining the sources in series or in parallel as required by the load. The converter topology also has the capability of power flow in either direction with the feature of being operated in buck, boost and buck-boost modes. A controller is designed which utilizes Pulse Width Modulation (PWM) technique for generation of pulses for power electronic switches. The extensive simulation study is performed in MATLAB / Simulink environment.