Results 271 to 280 of about 733,251 (300)

Eliminating harmonic neutral current problems

2008 IEEE/PES Transmission and Distribution Conference and Exposition, 2008
Powering multiple computer loads connected phase-neutral in a 3-phase wye distribution system places exceptional thermal stresses on the switchgear, transformers and wiring of that system. The presence of harmonic currents can lead to equipment failures and, in the worst case, fires.
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Solution trajectories of the harmonic-elimination problem

IEE Proceedings - Electric Power Applications, 2006
The paper considers the problem of finding the notch angles which are required for implementing programmed-harmonic-elimination switching in pulse-width-modulated (PWM) invertors. For a desired fundamental output voltage, the proposed methodology employs the Krawczyk–Moore test within a linear-programming-based search to determine, with mathematical ...
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A new robust scheme for harmonic elimination

Electric Power Systems Research, 1997
Abstract A new electronic scheme for harmonic elimination in low voltage level circuits is proposed. The performance of this scheme in the context of robustness to additive noise is evaluated. The scheme is based upon the cancellation of harmonics from actual signal by comparing it with the pure fundamental harmonic.
S.U.A. Qidwai, M. Bettayeb
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A novel harmonic elimination PWM strategy

Seventh International Conference on Power Electronics and Variable Speed Drives, 1998
This paper presents a novel space vector-based PWM strategy which closely approximates in "real-time" the switching angles of the selective harmonic elimination PWM (HEPWM) strategy for inverters. The strategy uses only conventional regular-sampled techniques and does not require any of the intensive offline computations that are usually associated ...
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Selective harmonic elimination in a conventional inverter

2017 8th Annual Industrial Automation and Electromechanical Engineering Conference (IEMECON), 2017
Ordinary single phase inverter gives a square wave output which when applied to electrical appliances may damage the later, reduce its efficiency as well as life as this inverter output waveform is not sinusoidal and contains lower and higher order harmonics in addition to fundamental. Moreover, the output voltage cannot be controlled.
Gautam Ghosh, Saswata Das, Sayan Banerjee, Dibyojyoti Kundu, Shibaji Das, Sabyasachi Sen   +5 more
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Harmonic Elimination Optimized for Multilevel Inverter

Conversion energy technology like converters and inverters is rapidly upgrading to properly harness one energy into another energy source. Solar, wind and biomass are the popular choices for converting energy sources into electrical output. This output usually can be produced by a multilevel inverter.
Muhammad Aniq Shahmi Bimazlim, Baharuddin Ismail   +1 more
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Improved Particle Swarm Optimization Based Selective Harmonic Elimination and Neutral Point Balance Control for Three-Level Inverter in Low-Voltage Ride-Through Operation

IEEE Transactions on Industrial Informatics, 2022
Xiangyang Xing, Ying Jiang, Xiaoyan Li
exaly  

THE ELIMINATION OF HARMONICS IN SOLAR ENERGY SYSTEMS

2018
In this study, we discuss the elimination of theharmonics on the loads that are fed by solar energy, which is the source ofrenewable energy. Solar energy is a renewable energy source. Since theresulting energy is DC voltage, it is necessary to convert this energy into ACvoltage accordingly.
TÜFEKÇİ, Alparslan, MENGİ, Onur Özdal, TOMAK, Özgür   +2 more
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Elimination of singularities in harmonic elements

Computer Methods in Applied Mechanics and Engineering, 1977
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A Novel Method For Harmonic Elimination

i-manager's Journal on Electronics Engineering, 2011
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