Results 71 to 80 of about 514 (145)

Harmonic Analysis of Single Phase Bost Inverter Using Simulink Matlab [PDF]

open access: yes, 2015
Harmonics are major problems in PWM drives due to the effects of EMI and High ripple factor derived from the converters, in this paper a study of harmonics and total harmonic distortion of a 3 phase PWM drive has been studied with the power generation by
Manjesh, .
core  

Differential Evolution Algorithm with Triangular Adaptive Control Parameter for SHEPWM Switching Pattern Optimization [PDF]

open access: yes, 2017
Differential evolution (DE) algorithm has been applied as a powerful tool to find optimum switching angles for selective harmonic elimination pulse width modulation (SHEPWM) inverters.
Hiendro, Ayong   +3 more
core   +3 more sources

THD Analysis of a Seven, Nine, and Eleven Level Cascaded H-Bridge Multilevel Inverter for Different Loads [PDF]

open access: yes, 2020
A multilevel inverter is implemented for generating the required staircase AC voltage of output from various steps of voltages of DC sources. The multilevel inverter gives a better harmonic spectrum and a compatible quality of output. This article delves
Jagan Mohana Rao Malla   +2 more
core   +2 more sources

An Efficient Asymmetric Inverter Design for PV Applications for Harmonics and Power Loss Mitigation [PDF]

open access: yesE3S Web of Conferences
The electricity industry faces major problems due to the ubiquitous availability of fossil fuels and their rising consumption. One option is to use photovoltaic (PV) modules, which convert sunlight into electricity—at first, in the form of direct current
Lingaswamy Kandadi   +1 more
doaj   +1 more source

Coconut dehusker machine [PDF]

open access: yes, 2017
Generally, coconut is dehusked manually using either a machete or a spike. These methods required skill labor and tiring to use. Attempts made so far in development of dehusking tools have been only partially successful and not effective in replacing ...
Che Mat, Faez   +5 more
core  

FPGA Based Implementation of Cascaded Multi-level Inverter with Adjustable DC [PDF]

open access: yes, 2018
In this paper, total harmonic distortion (THD) minimization problem for cascaded H-Bridge multilevel inverters (CHB-MLIs) with unequal DC sources is studied, which the DC voltage levels of CHB-MLI is considered to be dependent on switching angles.
Firouzkouhi, Hatef
core   +2 more sources

Performance Comparison of Asymmetrical Multilevel Inverter with Different Switching Techniques

open access: yesEnergies
In the present context, the asymmetrical multilevel inverter (AMLI) with minimal switches is extensively used to achieve high power quality across a load. The conventional inverter suffers from the disadvantages of large system components, low efficiency,
Ashish Srivastava   +2 more
doaj   +1 more source

Multiple Switching Patterns for SHEPWM Inverters Using Differential Evolution Algorithms

open access: yesInternational Journal of Power Electronics and Drive Systems (IJPEDS), 2011
An investigation on multiple patterns for both odd and even number of switching angles in a three-phase selective harmonic elimination pulse width modulation (SHEPWM) inverter is presented. The switching patterns are eand classified on the basis of the harmonic performance of the waveforms output from the inverter.
openaire   +1 more source

Hybrid Synchronized PWM Schemes for Closed-Loop Current Control of High-Power Motor Drives [PDF]

open access: yes, 2017
© 1982-2012 IEEE. For high-power drives, switching frequency is usually restricted to several hundred hertz to minimize the switching losses. To maintain the current distortions and torque ripples at a reasonable level, synchronized pulse patterns with ...
Walker, PD   +4 more
core   +1 more source

Current Harmonic Suppression of Permanent Magnet Synchronous Motor in Weak Magnetic Field under Low Switching Frequency

open access: yesKongzhi Yu Xinxi Jishu, 2016
Aiming at the problems of embedded permanent magnet synchronous motor at low switching frequency, such as current distortion of high speed deep weak magnetic field and large torque ripple, it analyzed the inhibitory effect of conventional motor control ...
ZANG Xiaodi, TIAN Dewen
doaj  

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