Electromagnetic Analysis of Rotating Permanent Magnet Exciters for Hydroelectric Generators

Examensarbete för masterexamen

Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12380/183929
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Type: Examensarbete för masterexamen
Master Thesis
Title: Electromagnetic Analysis of Rotating Permanent Magnet Exciters for Hydroelectric Generators
Authors: Nöland, Jonas
Abstract: The purpose of this project is to analyse different design possibilities for a rotating permanent magnet exciter for a hydroelectric generator. This is done through development of design models for optimizing suitable solutions. By use of Matlab/Simulink, COMSOL Multiphysics and ACE, the dynamics and the performance of the design is investigated. The aim is to have a robust system with low torque ripple absorbed by the exciter. It is shown that the six phase rectification solution has lower torque ripple for normal delay angles of the thyristor bridge compared to the three phase solution. For further development to try to reduce the torque ripple even more, one should optimize (reduce) the self and mutual inductances of the exciter rotor windings. A reduction of the parasitic magnetic energy storage in the system will reduce the torque ripple drastically.
Keywords: Elkraftteknik;Electric power engineering
Issue Date: 2013
Publisher: Chalmers tekniska högskola / Institutionen för energi och miljö
Chalmers University of Technology / Department of Energy and Environment
URI: https://hdl.handle.net/20.500.12380/183929
Collection:Examensarbeten för masterexamen // Master Theses



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