Open AccessAccuracy improvement for complex harmonic analysis modelling of a wound field synchronous generator
Author(s) -
Zhang Xiaotao,
Apsley Judith M.,
Jordan Steven
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8207
Subject(s) - finite element method , inductance , computer science , waveform , harmonic , generator (circuit theory) , harmonic analysis , permanent magnet synchronous generator , field (mathematics) , control theory (sociology) , electronic engineering , algorithm , voltage , engineering , acoustics , electrical engineering , mathematics , power (physics) , physics , artificial intelligence , structural engineering , control (management) , quantum mechanics , pure mathematics , telecommunications , radar
Complex harmonic analysis (CHA) provides a computationally efficient alternative to finite element analysis (FEA) for modelling multi‐phase wound field synchronous machines. This paper presents three methods that could improve the accuracy of the CHA: by improving the equivalent air gap, by including a saturation factor, and by using image methods for computing end‐winding inductance. The comparison against a finite element method and experiment shows the improved complex harmonic method could predict waveforms reliably, where a dynamic finite element method would be time‐consuming. This paper shows the method is valid for a five‐phase generator.