The influence of powerful thyristor rectifiers on autonomous feeding power-station
DOI:
https://doi.org/10.15587/1729-4061.2012.4600Keywords:
autonomous power station, powerful thyristor rectifiers.Abstract
With the help of the inspection center on the vessel there were held the measurements of root-mean-square and peak values of linear and phase currents and voltages, consumed active and reactive power, power factor, current and voltage waveform distortion factor, current and voltage harmonic values, cumulative rate of harmonic distortion, data of the system disbalance. The measuring was carried out taking into consideration various rotational velocities of rowing engines. On the ground of the taken measurements, the analyzed ship mains may be characterized as next: Existence of current and voltage harmonics which values considerably exceed acceptable ones, causing various negative consequences for ship electric equipment up to the stoppage of generating TP ; Peak factor high value which characterizes the shape defect of current and voltage sinusoid; Operation of functional shielding, when changing high voltages, and, as a result generators hold-off up to the total ship de-energizing; Absence of the opportunity to supply optimum speed, because of upper harmonics in main without additional sources of energy.References
- Качество электрической энергии на судах: Справочник [Текст] / Шейнихович В.В., Климанов О.Н., Пайкин Ю.И., Зубарев Ю.Я. – КЗО-Л.: Судостроение, 1988. – 160 с., ил.
- Плахтина, О. Г. Частотно-управляемые асинхронные и синхронные электроприводы [Текст] / О. Г. Плахтина, С. С. Мазепа, А. С.Куцик. – Львов. : Издательство Национального Университета «Львовская политехника», 2002. – 227 с.
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