The Increasing of Energy Efficiency in Excitation Circuit from a Large Power Generator

The paper deals with issues related to the power quality and energy efficiency at large power group. The configuration of a generic power group is presented, emphasizing the particularities of a static excitation system. There are analyzed, based on experimental determinations, the current state of...

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Bibliographic Details
Published in2018 IEEE Power & Energy Society General Meeting (PESGM) pp. 1 - 5
Main Authors Nicolae, Petre-Marian, Nicolae, Marian-Stefan, Nicolae, Ileana-Diana
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2018
Subjects
Active filters
Energy efficiency
Harmonic analysis
Inductors
monitoring and measurement system
power electronics
Power harmonic filters
power quality and energy efficiency
Reactive power
static excitation circuit
Windings
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Summary:The paper deals with issues related to the power quality and energy efficiency at large power group. The configuration of a generic power group is presented, emphasizing the particularities of a static excitation system. There are analyzed, based on experimental determinations, the current state of the power group and the possible causes for an identified non-sinusoidal regime, with a low power factor. The controlled three-phase thyristors rectifier produces a distorting regime, the excitation being supplied with a low power factor. There are analyzed different ways to reduce the non-sinusoidal regimes occurring in the secondary winding of the transformer supplying the excitation. Numerical simulations are obtained. Results concerning the diminishing of non-sinusoidal regimes with reactance coils and an active power filter are obtained and presented. More options are considered in order to improve the energy efficiency, being preferred the option with active filtering at least for one master-slave configuration.
ISSN:1944-9933
DOI:10.1109/PESGM.2018.8586210