A Brushless Monopolar Generator with Longitudinal Excitation from Nonsalient Poles

This article describes an improved design of a longitudinally excited generator with a three-phase output voltage. Unlike most conventional electrical machines, in such a generator the magnetic field lines are closed in the direction longitudinal to the axis of rotation. The rotor of such a generato...

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Bibliographic Details
Published in2023 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM) pp. 383 - 389
Main Authors Koptjaev, Evgenij, Marques Cardoso, Antonio J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 15.05.2023
Subjects
alternator
Brushes
brushless generator
Coils
Generators
invention
monopolar
reliability
Rotors
Stator windings
Voltage
wind turbine
Windings
windings on stator
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Summary:This article describes an improved design of a longitudinally excited generator with a three-phase output voltage. Unlike most conventional electrical machines, in such a generator the magnetic field lines are closed in the direction longitudinal to the axis of rotation. The rotor of such a generator has two sets of poles at its ends, and its stator consists of rods with output windings and excitation coils placed around the circumference of the non-magnetic stator. Thus, the generator stator does not have a yoke, and the rods with coils can be located in a plastic non-magnetic housing. The advantage is the ease of assembly of the structure and the absence of brushes on the rotor. Such a generator is new, and different from everything that was invented before - the results of the study of its model showed the possibility of using it in wind turbines of small and medium power. A simple method for choosing the main dimensions and the number of turns of the windings has been developed.
DOI:10.1109/ICIEAM57311.2023.10139144