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In this paper stability and dynamic properties of voltage and frequency droop control of power electronic converters are investigated for a distributed generation system. Droop control is utilized to share active and reactive power among the source converters. The voltage and frequency controllers are designed so that stand-alone converter operation feeding(More)
An estimate of the strength of the tidal eld as a function of the mass scale of ltering. b) The rate of decaying of the contribution to the tidal eeects of the mass shells. aligned. They can be considered as candidates to present alignment with the larger-scale perturbations. Concerning primordial alignments, we found (Gonzz alez, 1995a,b) that for at(More)
Pseudolites provide a means for bridging the gap between outdoors and indoors when GNSS (Global Navigation Satellite System) positioning is concerned. This paper presents a ubiquitous outdoor/indoor GNSS navigation platform that utilizes GPS (Global Positioning System), GLONASS, and pulsed pseudolite (PL) signals for seamless positioning. When a pseudolite(More)
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