A lumped-parameter coupled-circuit model of a claw-pole alternator is derived. To derive the model, analytical techniques are used to define a three-dimensional (3-D) Fourier-series representation of the airgap flux density. Included in the series expansion are the harmonics introduced by rotor saliency, concentrated stator windings, and stator slots. From the airgap flux density waveform, relatively simple closed-form expressions for the stator and rotor self- and mutual-inductances are obtained. The coupled-circuit model is implemented in the simulation of an alternator/rectifier system using a commercial state-model-based circuit analysis program. Comparisons with experimental results demonstrate the accuracy of the model in predicting both the steady-state and transient behavior of the machine
H. Bai et al., "Analytical Derivation of a Coupled-circuit Model of a Claw-pole Alternator with Concentrated Stator Windings," IEEE Transactions on Energy Conversion, Institute of Electrical and Electronics Engineers (IEEE), Mar 2002.
The definitive version is available at http://dx.doi.org/10.1109/60.986434
Mechanical and Aerospace Engineering
Keywords and Phrases
Fourier series; power conversion harmonics; synchronous machines; torque measurement
Article - Journal
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