Erin Harmeyer

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A. power supply system for feeding the superconducting coils of the Helias reactor, an upgraded system of the WENDELSTEIN-7X device, has been investigated. This multi- converter supply system has been optimized, in view of low losses in the components and only small negative impact to the power grid. The design of the optimized multi-converter supply system(More)
The Helias Reactor (HSR) is the study of a stellarator fusion reactor configuration. The goal of this fusion power plant is to deliver electric power to the grid. One of the main technical components of the Helias Reactor is the superconducting coil system. A safety system, inserted between each power supply unit and the coil group, protects the(More)
This mixed method study examined 28 low-income African American mothers' physical interventions in their 14-month-old toddlers' play. Inductive methods were used to identify six physical intervention behaviors, the affect accompanying physical interventions, and apparent reasons for intervening. Nonparametric statistical analyses determined that toddlers(More)
Investigations on operation of the power supply for the auxiliary system of the fusion power plant were made using the NEPLAN code. The new approach was to use an additional 80 MW, 1.2 GJ energy storage unit with the optimized magnetic confinement system (superconducting magnet system, multiconverter unit and STATCOM) as a SMES or modular flywheel storage(More)
Investigations on operation of the power supply for the auxiliary system of the fusion power plant were made using the SIMPLORER, EFFI and NEPLAN codes. The new approach was to use an additional 80 MW, 1.2 GJ energy storage unit with the magnetic confinement system (superconducting magnet system, multiconverter unit and STATCOM) as a SMES to reduce network(More)
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