Analysis of Electric Disturbances from the Static Frequency Converter of a Pumped Storage Station
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Improved renewable energy power system using a generalized control structure for two-stage power converters Kim, Rae-Young (Virginia Tech, 2009-08-28)The dissertation presents a generalized control structure for two-stage power converters operated in a renewable energy power system for smart grid and micro grid systems. The generalized control structure is based on the ...
Core loss characterization and design optimization of high-frequency power ferrite devices in power electronics applications Gradzki, Pawel Miroslaw (Virginia Tech, 1992-03-30)
An impedance-based core loss measurement technique for power ferrites, the modeling and analysis of mechanisms of high-frequency losses, and design methodology for optimization for high-frequency magnetics are ...
Niezrecki, Christopher (Virginia Tech, 1992-09-03)A piezoceramic actuator used for structural control behaves electrically as a nearly pure capacitance. When conventional amplifiers are used to drive these actuators, the current and voltage is close to 90 degrees out of ...