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Harmonics reduction and reactive power injection in wind generation systems
(2021)
In this work, methods are implemented to improve two aspects of energy quality in a wind generation system. First, the harmonic reduction is achieved by applying a linear control technique in the Grid Side Converter; and ...
Novel high-power-factor isolated electronic ballast for multiple tubular fluorescent lamps
(2001-01-01)
This paper presents a novel isolated electronic ballast for multiple fluorescent lamps, featuring high power-factor, and high efficiency. Two stages compose this new electronic ballast, namely, a new voltage step-down ...
Novel high-power-factor isolated electronic ballast for multiple tubular fluorescent lamps
(2001-01-01)
This paper presents a novel isolated electronic ballast for multiple fluorescent lamps, featuring high power-factor, and high efficiency. Two stages compose this new electronic ballast, namely, a new voltage step-down ...
On the reduction of the third-order harmonic losses in low–voltage power cables used for feeding large LED and CFL lighting loads
(AEM, 2017-10)
An experimental investigation of diversity factors forLED (light emitting diode) in combination with CFL(compact fluorescent lamps) and LED lamps is presented inthis paper. Attention was paid to the reduction of low?orderharmonic ...
Harmonic demodulation and minimum enhancement factors in field-enhanced near-field optical microscopy
(Wiley Blackwell Publishing, Inc, 2015-01)
Field enhanced scanning optical microscopy (FESOM) relies on the design and fabrication of plasmonic probes which had to provide optical and chemical contrast at the nanoscale. In order to do so, the scattering containing ...
Generalization of Wye and Delta auto-connections: Analysis of voltages and currents
(2010-12-01)
Multipulse rectifier topologies based on autoconnections, or differential connections, are more and more applied as interface stages between the mains and power converters. These topologies mitigate many low-order current ...
Generalization of Wye and Delta auto-connections: Analysis of voltages and currents
(2010-12-01)
Multipulse rectifier topologies based on autoconnections, or differential connections, are more and more applied as interface stages between the mains and power converters. These topologies mitigate many low-order current ...
Tensões e correntes senoidais em conversores para média tensão industrial
(Universidade Federal de Minas GeraisUFMG, 2007-12-04)
This work proposes the use of a passive filter and the selective harmonic elimination in order to synthesize sinusoidal voltages and current with high power and medium voltage static converters. The work presents an ...