Search for dissertations about: "magnetic flux"
Showing result 1 - 5 of 156 swedish dissertations containing the words magnetic flux.
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1. Modeling and Verification of Ultra-Fast Electro-Mechanical Actuators for HVDC Breakers
Abstract : The continuously increasing demand for clean renewable energy has rekindled interest in multi-terminal high voltage direct current (HVDC) grids. Although such grids have several advantages and a great potential, their materialization has been thwarted due to the absence of HVDC breakers. READ MORE
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2. Impedance of Soft Magnetic Multilayers : Application to GHz Thin Film Inductors
Abstract : A theoretical approach to calculating impedance of metallicmagnetic/conductor layered structures is developed. Thefrequency range considered extends to the ferromagneticresonance region of soft magnetic films (of the order of 1GHz). READ MORE
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3. Aspects on measuring electrical current utilizing magnetic zero-flux technique
Abstract : The utilization of high accuracy measurements of electrical quantities is a prerequisite for the development of modern society. Generally, measurements serve different purposes and hence the criteria for the measurement equipment and method are different. READ MORE
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4. Formation of solar bipolar regions : Magnetic flux concentrations from suction of the negative effective magnetic pressure instability
Abstract : Sunspots stand out on the visible solar surface. They appear as dark structures evolving and changing over time. They host energetic and violent events, like coronal mass ejections and flares, and concentrate strong magnetic fields. READ MORE
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5. A lumped element transformer model including core losses and winding impedances
Abstract : In order to design a power transformer it is important to understand its internal electromagnetic behaviour. That can be obtained by measurements on physical transformers, analytical expressions and computer simulations. READ MORE