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Articles 1 - 16 of 16
Full-Text Articles in Engineering
Z-Source Inverter For Automotive Applications, Omar Ellabban, Joeri Van Mierlo
Z-Source Inverter For Automotive Applications, Omar Ellabban, Joeri Van Mierlo
Omar Ellabban
No abstract provided.
Capacitor Voltage Control Techniques Of The Z-Source Inverter: A Comparative Study, Omar Ellabban, Joeri Van Mierlo, Philippe Lataire
Capacitor Voltage Control Techniques Of The Z-Source Inverter: A Comparative Study, Omar Ellabban, Joeri Van Mierlo, Philippe Lataire
Omar Ellabban
The Z-source inverter (ZSI) is a recently proposed single-stage power conversion topology. It adds voltage boost capability for complementing the usual voltage buck operation of a traditional voltage source inverter (VSI) with improved reliability. In this paper, a single-loop and dual-loop capacitor voltage control techniques for the ZSI are digitally designed based on a third order small signal model of the ZSI, implemented using a digital signal processor (DSP) and compared. Simulation and experimental results of a 30 kW ZSI during input voltage changes, load disturbances and steady state operations are presented and compared. The results show that the dual-loop …
Multi-Hole Waveguide Directional Couplers, Mahmoud Moghavvemi, Hossein Ameri Mahabadi, Farhang Alijani
Multi-Hole Waveguide Directional Couplers, Mahmoud Moghavvemi, Hossein Ameri Mahabadi, Farhang Alijani
Hossein Ameri Mahabadi
1. Introduction The directional couplers are inherently assumed as four-port devices, which consisted of two transmission lines that are electromagnetically coupled to each other. The first port is named as input, and the second one as output or transmitted, the third one as sampling or coupled and the fourth one as isolated or terminated. By using a special design the input power is divided between output and coupled port in a certain ratio named coupling factor. The required value for coupling factor P1/P3 defines the range of applications for directional couplers. Based on the application, coupling factor could be any …
Matlab Notes, D. K. Chaturvedi Dr.
Matlab Notes, D. K. Chaturvedi Dr.
D. K. Chaturvedi Dr.
Matlab includes: • Math and computation • Algorithm development • Modeling, simulation, and prototyping • Data analysis, exploration, and visualization • Scientific and engineering graphics • Application development, including graphical user interface building
Matlab Examples, D. K. Chaturvedi Dr.
Matlab Examples, D. K. Chaturvedi Dr.
D. K. Chaturvedi Dr.
These examples demonstrates how to use MATLAB to model a simple physics problem faced by a college students.
Analysis And Implementation Of Transformerless Lcl Resonant Power Supply For Ozone Generation, Saad Mekhilef
Analysis And Implementation Of Transformerless Lcl Resonant Power Supply For Ozone Generation, Saad Mekhilef
Saad Mekhilef
This paper describes the analysis and design of an LCL resonant power supply for ozone generation. The main advantage of the proposed topology is the absence of high-voltage transformer; the high voltage gain is achievable by means of doubleresonance phenomena. Furthermore, the bandwidth is wider than the ordinary LC and its phase difference is constant over specific frequency range; as a result, an open-loop operation can be implemented. The complete analysis and design procedure of the power supply is presented. The design procedure is verified by implementing the power supply to drive a dielectric barrier discharge prototype ozone chamber. The …
Cross-Sectional Dilation Mode Resonator With Very High Electromechanical Coupling Up To 10% Using Aln, Chengjie Zuo, Changhan Yun, Philip Stephanou, Sang-June Park, Chi-Shun Lo, Robert Mikulka, Je-Hsiung Lan, Mario Velez, Ravi Shenoy, Jonghae Kim, Matt Nowak
Cross-Sectional Dilation Mode Resonator With Very High Electromechanical Coupling Up To 10% Using Aln, Chengjie Zuo, Changhan Yun, Philip Stephanou, Sang-June Park, Chi-Shun Lo, Robert Mikulka, Je-Hsiung Lan, Mario Velez, Ravi Shenoy, Jonghae Kim, Matt Nowak
Chengjie Zuo
For the first time in the development of piezoelectric micromechanical resonators, this paper presents a new class of cross-sectional dilation mode resonators (XDMR) that achieve unprecedentedly high electromechanical coupling constant: kt2 up to 10% for aluminum nitride (AlN) based resonators and 19% for zinc oxide (ZnO) based resonators. Detailed discussions on the geometry design, FEM simulation, and process challenge are provided in this paper to give insight on this novel high-kt2 piezoelectric resonator technology and, more importantly, guide the future development of mechanical resonators with coherent 2D/3D mode shapes.
Planning Of Low-Cost 77-Ghz Radar Transceivers For Automotive Applications, Hossein Ameri Mahabadi, A. Attaran, M. Moghavvemi
Planning Of Low-Cost 77-Ghz Radar Transceivers For Automotive Applications, Hossein Ameri Mahabadi, A. Attaran, M. Moghavvemi
Hossein Ameri Mahabadi
The key to prevent driving accidents by automotive radar systems at high speed is to have optimum and accurate estimation of position representation and fast visualization of the environment.
Dynamic Modeling Of Solid Oxide Fuel Cell Stack Based On Local Linear Model Tree Algorithm, Hesamoddin Marzooghi, M. Raoofat, M. Dehghani, G. H. Elahi
Dynamic Modeling Of Solid Oxide Fuel Cell Stack Based On Local Linear Model Tree Algorithm, Hesamoddin Marzooghi, M. Raoofat, M. Dehghani, G. H. Elahi
Hesamoddin Marzooghi
This paper presents a dynamic model for Solid Oxide Fuel Cell (SOFC) stack using Local Linear Model Tree (LOLIMOT) algorithm which is useful for both dynamic and steady-state studies. Most of conventional SOFC models require a large number of parameters and factors, which are difficult to be determined or estimated. In this paper, a LOLIMOT-based model, which does not require the parameters of fuel cell, is proposed for each operation mode of SOFC. In these models, decision tree-based feature selection approach is exploited to select inputs of the LOLIMOT. The proposed models are trained in a short time and they …
An Improved Particle Swarm Optimization (Pso)–Based Mppt For Pv With Reduced Steady-State Oscillation, Saad Mekhilef
An Improved Particle Swarm Optimization (Pso)–Based Mppt For Pv With Reduced Steady-State Oscillation, Saad Mekhilef
Saad Mekhilef
No abstract provided.
Pss And Tcsc Damping Controller Coordinated Design Using Gsa, Mahdiyeh Eslami, Hussain Shareef, Azah Mohamed, Mohammad Khajehzadeh
Pss And Tcsc Damping Controller Coordinated Design Using Gsa, Mahdiyeh Eslami, Hussain Shareef, Azah Mohamed, Mohammad Khajehzadeh
Dr. Mahdiyeh Eslami (مهدیه اسلامی)
No abstract provided.
Modeling And Simulation Of Z-Source Inverter, Suresh L
Modeling And Simulation Of Z-Source Inverter, Suresh L
suresh L
Z – source inverters have been recently proposed as an alternative power conversion concept as they have both voltage buck and boost capabilities. These inverters use a unique impedance network, coupled between the power source and converter circuit, to provide both voltage buck and boost properties, which cannot be achieved with conventional voltage source and current source inverters. To facilitate understanding of Z – source inverter, this paper presents a detailed analysis, showing design of impedance network, implementation of simple Boost control PWM technique and simulation of Z – source inverter for different values of modulation indices.
A Survey Of The State Of The Art In Particle Swarm Optimization, Mahdiyeh Eslami, Hussain Shareef, Mohammad Khajehzadeh, Azah Mohamed
A Survey Of The State Of The Art In Particle Swarm Optimization, Mahdiyeh Eslami, Hussain Shareef, Mohammad Khajehzadeh, Azah Mohamed
Dr. Mahdiyeh Eslami (مهدیه اسلامی)
No abstract provided.
Power Supply Electrical Design, Robert Mayers, Matt Olson, Zach Bryant, Ali Haider, Stephen Holmes, Paul Johnson, Noah Root, Josh Berk, Jeremy Straub
Power Supply Electrical Design, Robert Mayers, Matt Olson, Zach Bryant, Ali Haider, Stephen Holmes, Paul Johnson, Noah Root, Josh Berk, Jeremy Straub
Jeremy Straub
No abstract provided.
Sensor And Bus Electrical Design, Tyler Przybylski, Prabhu Victor, Chris Mcdonald, Yineng Li, Noah Root, Josh Berk, Jeremy Straub
Sensor And Bus Electrical Design, Tyler Przybylski, Prabhu Victor, Chris Mcdonald, Yineng Li, Noah Root, Josh Berk, Jeremy Straub
Jeremy Straub
No abstract provided.
Optimization Of Photovoltaic Power Systems, Djamila Rekioua Pr
Optimization Of Photovoltaic Power Systems, Djamila Rekioua Pr
REKIOUA Djamila Dr
Photovoltaic generation is one of the cleanest forms of energy conversion available. One of the advantages offered by solar energy is its potential to provide sustainable electricity in areas not served by the conventional power grid. Optimisation of Photovoltaic Power Systems details explicit modelling, control and optimisation of the most popular stand-alone applications such as pumping, power supply, and desalination. Each section is concluded by an example using the MATLAB® and Simulink® packages to help the reader understand and evaluate the performance of different photovoltaic systems. Optimisation of Photovoltaic Power Systems provides engineers, graduate and postgraduate students with the means …