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A novel application and generalization of sigma–delta ( ) modulation has emerged in three-phase power-electronic converters. A conventional modulator with scalar signals and binary quantizer is generalized to a modulator with vector signals and a hexagonal quantizer. Indeed, power-electronic switching states may be thought of as determining the quantizer outputs. The output spectrum is a key pe...

........................................................................................................... i Acknowledgement ............................................................................................ iii List of Publications .......................................................................................... v

................................................................................................................................................ ii Acknowledgments ............................................................................................................................ iii Table of

The National Aerospace Laboratory NLR is the central aerospace research anddevelopment organization in the Netherlands, and is actively involved in international simulationprojects. In the HPCN project SIMULTAAN, NLR developes a generic scenario management toolnamed SMARTFED for real-time monitoring and control of networked simulations. The scenariomanagement tool also offers fu...