Width

As explained earlier, by using Equation (5) and comparing values for normal channel width having no dots, tortuosity effect can be measured. As the fluid passes through these dots, the length of the contact of wax increases along with the tortuous path, both causing an increase in the channel resistance. This tortuosity increases from 1.34 to 1.54 as the density increases from low to high in case of wax. The high-density value seems to have an almost similar flow profile to the medium density both

Operating at Low Modulation Index with Variable Power Factor Subhadeep Bhattacharya, Student Member, IEEE, Diego Mascarella, Member, IEEE, Geza Joos, Fellow, IEEE, and Jianhong Xu, Member, IEEE Abstract— Conventional three-level discontinuous pulse-width modulation (DPWM) techniques are typically employed in variable frequency drive applications to reduce inverter switching losses and provide maximum benefit for load power factor angles in the range from 30° lagging to 30° leading. This paper proposes

Operating at Low Modulation Index with Variable Power Factor Subhadeep Bhattacharya, Student Member, IEEE, Diego Mascarella, Member, IEEE, Geza Joos, Fellow, IEEE, and Jianhong Xu, Member, IEEE Abstract— Conventional three-level discontinuous pulse-width modulation (DPWM) techniques are typically employed in variable frequency drive applications to reduce inverter switching losses and provide maximum benefit for load power factor angles in the range from 30° lagging to 30° leading. This paper proposes

PULSE WIDTH MODULATION OBJECTIVE AND SIGNIFICANCE In this project, we would like to study more on pulse width modulation (PWM) technique which is a powerful technique to control analog circuits with digital outputs. For that, we have to understand about digital oscillation and how its width can affect the output of PWM. Example has been provided in manual and simulation forms to improve our knowledge on PWM. We would also like to study the different types of PWM available today. Lastly, we would

change. Variables A variable is a change in an experiment that could alter the outcome/results of that experiment, and for this experiment the main variables are type of paper, width of paper, length of paper, and temperature. We are going to be studying how changing the width of the paper affects the resistance, and so to ensure a fair test we will have to keep all of the other variables constant, as if they were also changing the results could be affected

Proc. of the Second Intl. Conf. on Advances in Computer, Electronics and Electrical Engineering -- CEEE 2013 Copyright © Institute of Research Engineers and Doctors. All rights reserved. ISBN: 978-981-07-6260-5 doi:10.3850/ 978-981-07-6260-5_25 “FPGA BASED SINGLE PHASE MULTILEVEL INVERTER” Ms. Anuja Murar Nazare Student M Tech (Digital Systems ) Rajarambapu Institute of Technology, Rajaramnagar-415416 Email ID:anu.333.me@gmail.com Abstract- The application of Field programmable Gate Array(FPGA)

fixed step and consequently satisfies the FFT tool requirements.It was observed that value of total harmonic distortion(THD) was 65.77 percent in 2-level and 35.11 percent in 3- level for SPWM invertor and 56.77 percent for SVPWM invertor. The pulse width modulated (PWM) inverter is the most

outputs with conventional voltage control techniques Output voltage of an inverter can also be varied by controlling on-off periods of its switches. This is the most popular and efficient method for controlling inverter output voltage. 2.4 Pulse Width Modulation in VSI’s Output Voltage of the Inverter can be modified or controlled by controlling or modifying switching current, or in case of Power Switches, by controlling or modifying Gate current. This control is achieved by PWM control. In one

CHAPTER 2 LITREATURE REVIEW 2. 1 Literature Overview The following literature survey for the current report consists of various papers on hybrid system published in the IEEE conferences and the journals. The conclusions and explanation is also described 2.2 Early Developments 2.2.1 Comparison of simulation results of three level & five level H-bridge multilevel inverter by mamta N. kokate The conventional two levels Inverter have many limitations for high voltage and high power application

INDIA D. Naveen Kumar Associate Professor Department of Electrical and Electronics Engineering Guru Nanak Institutions Technical campus Hyderabad, Telangana, INDIA Abstract— This paper presents unipolar pulse width modulation technique with sinusoidal sampling and Space vector pulse width modulation are analyzed for three-phase Diode clamped multi-level inverter from the point of view of the Phase voltages, currents, voltage across the split capacitors and Total harmonic distortion. The necessary