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Control of 3-Phase 4-Wire Isolated Grids
Jurgen Buttner,Thomas Ellinger,Andre Muller,Jurgen Petzoldt 전력전자학회 2001 ICPE(ISPE)논문집 Vol.2001 No.10
The generation of isolated grids by pulsed converters with characteristics close to the mains of the utility companies is a pretentious task. For generation of three-phase four-wire isolated grids are presented possible topologies and the demands on the system control are processed. For control of all conceivable load and error conditions, an extensive control technology is necessary. This must permit unsymmetrical operating conditions for an unlimited period but recognize errors simultaneously and therefore an overloading the consumer and the power semiconductors reliable may prevent. Measurement results on an experimental plant show the problems to be solved.
HARMONICS OF INDUSTRIAL POWER ELECTRONIC CONVERTERS IN THE FREQUENCY RANGE UP TO 10 KHZ
J.Buttner,A.Krechla,J.Petzoldt,D.Machost 전력전자학회 1998 ICPE(ISPE)논문집 Vol.- No.-
This paper refers to fundamental investigations and simulations of conducted electromagnetic interference emissions produced by power electronic devices in a frequency range from 2 to 10 kHz. The emissions of different industrial power converters were measured and compared. The influence of different working conditions over the altitude of the EMI are represented. Simulations of the power converter system including the line impedance stabilisation network certify the measurements.