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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.