Results 21 to 30 of about 173,277 (307)
A back to back multilevel converter for driving low inductance brushless AC machines [PDF]
, 2007 Traditionally, multilevel converters are utilised in medium voltage applications, allowing the DC-link voltage to exceed the switch maximum blocking voltage.
Bingham, Chris +3 more
core +1 more source
Mathematics, 2022 In this article, a distributed control scheme to compensate for voltage harmonics in islanded microgrids is presented, where each distributed generation (DG) source has a primary control level and a secondary control level. In addition to the voltage and
Sultan Alghamdi +6 more
doaj +1 more source
Power loss investigation in HVDC for cascaded H-bridge multilevel inverters (CHB-MLI) [PDF]
, 2015 In the last decade, the use of voltage-source multilevel inverters in industrial and utility power applications has been increased significantly mainly due to the many advantages of multilevel inverters, compared to conventional two level inverters ...
Alamri, B, Darwish, M
core +1 more source
Harmonic Mitigation Using Passive Harmonic Filters: Case Study in a Steel Mill Power System
Energies, 2021 In this study, we mitigated the harmonic voltage in a power system that contained the roughing mill (RM) and finishing mill (FM) motor drives. AC/DC converter type RM drive is a non-linear, large-capacity varying load that adversely affects power quality,
Byungju Park +3 more
doaj +1 more source
IET Power Electronics, 2023 As the full‐bridge modular multilevel converter (FB‐MMC) enables direct three‐phase AC voltage to single‐phase AC voltage conversion with good power quality and high voltage level, it is suitable for the co‐phase traction power supply system.
Ruoning Tian +5 more
doaj +1 more source
Precise modelling of switching and conduction losses in cascaded h-bridge multilevel inverters [PDF]
, 2014 Nowadays, voltage source multilevel inverters are being used extensively in industry due to its many advantages, compared to conventional two level inverters, such as higher output voltage at low switching frequency, low voltage stress(dv/dt), lower ...
Alamri, B, Darwish, M
core +1 more source
An improved seven-phase SVPWM modulation strategy based on virtual voltage vectors
Energy Reports, 2023 Seven-phase motors are usually powered by seven-phase voltage source inverter. The traditional seven-phase SVPWM algorithm produces a large common-mode voltage (CMV), while harmonic currents in the harmonic subspace can also produce large harmonic losses
Baolin Jia, Wei Xie
doaj +1 more source
Suppression of line voltage related distortion in current controlled grid connected inverters [PDF]
, 2005 The influence of selected control strategies on the level of low-order current harmonic distortion generated by an inverter connected to a distorted grid is investigated through a combination of theoretical and experimental studies.
Abeyasekera, T. +3 more
core +2 more sources
IET Power Electronics, 2023 In this paper, the problem of harmonic coupling between the converter transformer and the converter under the action of geomagnetically induced current (GIC) is proposed to be investigated.
Yang Peihong +6 more
doaj +1 more source
, 2004 Experimental observation of the unidirectional motion of a topological soliton driven by a bi-harmonic ac force of zero mean is reported. The observation is made by measuring the current-voltage characteristics for a fluxon trapped in an annular ...
A. Barone +6 more
core +1 more source