Transient performance and loss analysis in solid wound rotor pulsed power generators

High rotation speed is the key to enhanced power density in rotating machines. High speed, shock, and construction considerations argue for solid rotors. However, output transient voltage requirements cause concern that changes in the field current will not be registered quickly in the stator. This...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2006-02, Vol.42 (2), p.335-340
Main Author: Davey, K.R.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Density
Electric potential
Electric shock
Estimating
Exact sciences and technology
Exact solutions
Generators
Harmonic
Harmonics
Magnetism
Materials science
Mathematical analysis
Other topics in materials science
Performance analysis
Performance loss
Physics
power dissipation
Power generation
Pulse generation
rotating machine
Rotating machines
Rotors
Solids
transfer relation
transient
Transient analysis
wound rotor
Wounds
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Summary:High rotation speed is the key to enhanced power density in rotating machines. High speed, shock, and construction considerations argue for solid rotors. However, output transient voltage requirements cause concern that changes in the field current will not be registered quickly in the stator. This paper examines different techniques for estimating the machine time constant, including an analytic solution of a smooth air gap machine and a transfer relation solution based on time harmonic solutions. It discusses an empirical solution and an equivalent surface current approach for predicting the loss in the rotor. These solutions compare favorably to rotational transient finite-element solutions.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2005.860822