Saturation in Brushless Doubly-Fed Induction Machines

Conference paper (2016)

Authors

T.D. Strous DC systems, Energy conversion & Storage -

X. Wang DC systems, Energy conversion & Storage -

H. Polinder DC systems, Energy conversion & Storage -

Jan Abraham Ferreira Electrical Power Processing

Research Group

DC systems, Energy conversion & Storage () (TU Delft)

Harmonics Saturation FE modelling Brushless Doubly-Fed Machine (BDFM) Magnetic Field model

More Info

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To reference this document use:

http://resolver.tudelft.nl/uuid:16c71dca-5486-47b8-bea4-eb76679f4d27

Published Date

2016

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

DC systems, Energy conversion & Storage

Abstract

The brushless Doubly-Fed Induction Machine (DFIM) has many advantages over the conventional DFIG commonly applied in wind turbines. However, due to the complex motion of the magnetic field in this machine type, the inclusion of nonlinear iron saturation in brushless DFIM models has been proven to be challenging. This paper combines a brushless DFIM Electric Equivalent Circuit (EEC) model with an analytical derived magnetic field model. The saturated magnetic field is iteratively obtained using the secant method. Saturation is included in the EEC model by introducing complex saturation factors derived from the magnetic field. This results in an EEC model that is able to accurately determine brushless DFIM operating characteristics. The model is validated by application to a case study machine and comparing the results with those derived from a finite element model.