Results 261 to 270 of about 4,960,323 (312)

Selective harmonic elimination for the modular multilevel converter

2016 North American Power Symposium (NAPS), 2016
This paper will analyze the power quality of multilevel voltage waveforms generated using three modulation strategies: i) a conventional nearest level control (NLC) strategy, ii) NLC with harmonic elimination, and iii) optimized selective harmonic elimination (OSHE).
Hector R. Robles-Campos, Fernando Mancilla-David   +1 more
openaire   +1 more source

Selective Harmonic Elimination PWM For a Cascaded Multi-level Inverter

2020 IEEE International Conference on Industrial Technology (ICIT), 2020
This paper deals with the selective harmonic elimination pulse width modulation (SHE-PWM) technique. This technique is used for the elimination of selected dominant low order harmonics in the multi-level inverter output voltage. The presence of these harmonics is the essential drawback of such kind of inverters; especially when it is used for the ...
Ahmed Lakhdar Kouzou, Abdelbasset Krama, Shady S. Refaat, Haitham Abu-Rub   +3 more
openaire   +2 more sources

Elimination of selective harmonics in a Multi-Level Inverter

2013 7th International Conference on Intelligent Systems and Control (ISCO), 2013
This paper presents a selective harmonics elimination in Multi-Level Inverter. The basic concept of this reduction is to eliminate specific harmonics, which are generally of the lowest orders, with an appropriate choice of switching angles. This paper employs Homotopy algorithm to solve the transcendental equations for finding the switching angles ...
P.K. Dhal, C. Christober Asir Rajan
openaire   +1 more source

Stand-Alone Operation of Distributed Generation Systems With Improved Harmonic Elimination Scheme

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
Improvement in the efficiency of distributed generation (DG) inverters is a concern and challenge for researchers across the globe. To address the concern, an inverter control technique is developed.
Mohammed Ali Khan, Ahteshamul Haque, V. S. Bharath Kurukuru, Huai Wang, F. Blaabjerg   +4 more
semanticscholar   +1 more source

A Composite Selective Harmonic Elimination Model Predictive Control for Seven-Level Hybrid-Clamped Inverters With Optimal Switching Patterns

IEEE transactions on power electronics, 2021
A composite strategy that combines selective harmonic elimination pulsewidth modulation (SHE-PWM) and model predictive control (MPC) for seven-level hybrid-clamped (7L-HC) inverters is presented in this article. By introducing the unified SHE formulation,
Ming-Zhe Wu, Hao Tian, Y. Li, Georgios Konstantinou, Kehu Yang   +4 more
semanticscholar   +1 more source

Selective Harmonic Elimination for medium voltage drives

2022
This technical note explores the implementation and performance evaluation of Selective Harmonic Elimination (SHE) using a Programmed Patterns PWM (PP-PWM) modulator. Designed primarily for high-power applications operating at low switching frequencies, SHE lowers current harmonic distortion to relax physical filtering constraints.
openaire   +1 more source

Multilevel Selective Harmonic Elimination for an Asymmetric Converter

2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2018
A novel Multilevel Selective Harmonic Elimination technique is presented for a 27-Level cascaded converter that follows the 9:3:1 ratio. The mathematical model of the AC waveform in the frequency domain allows to calculate the firing angles of the power cells in order to eliminate all the non-triple odd harmonics below the 51th order.
Javier Munoz, Claudio Perez, Ignacio Torres, Ariel Villalon, Eduardo Espinosa, Pedro Melin, Jaime Rohten   +6 more
openaire   +1 more source

Selective Harmonic Elimination for a Cascade Multilevel Inverter

2006 IEEE International Symposium on Industrial Electronics, 2006
This paper presents selective harmonic elimination method for cascade multilevel converters to eliminate the specified harmonics in the output voltage. The principle of the converter is analyzed. Then the switching angles are computed to eliminate the low order harmonics in theory. And the gating signals for the converter are given.
Tianhao Tang, Jingang Han, Xinyuan Tan
openaire   +1 more source

An Improved Modulation of the Selective Harmonic Elimination Controlling

2006 International Conference on Power System Technology, 2006
In the application of the traditional selective harmonic elimination technique, the lowest un-eliminated harmonic and the total harmonic distortion factor are obviously enlarged usually, which would do great harm to the power system. In order to solve the problem, this paper presented an improved harmonic elimination technique. In this new technique, a
Qin Liang, Zhang Hui, Liu Kaipei, Qisheng Liu   +3 more
openaire   +1 more source

Modified ADALINE algorithm for harmonic estimation and selective harmonic elimination in inverters

International Journal of Electronics, 2011
In digital signal processing, algorithms are very well developed for the estimation of harmonic components. In power electronic applications, an objective like fast response of a system is of primary importance. An effective method for the estimation of instantaneous harmonic components, along with conventional harmonic elimination technique, is ...
B. Vasumathi, S. Moorthi
openaire   +1 more source