Observations of Field Current and Field Winding Temperature in Electrically Excited Synchronous Machines with Brushless Excitation
Paper in proceeding, 2022

Electrically excited synchronous machines have become an alternative in electrification of transportations and renewable power generations. To reduce the extra effort in the maintenance of sliprings and brushes for field excitation, brushless excitation has been developed. However, when brushless excitation is adopted, the field winding becomes physically inaccessible when the machine is rotating. To solve this problem, an algorithm is proposed in this study to observe the field current and field winding temperature of an EESM with brushless excitation. The stator currents are measured and then used to correct the machine state predictor. The correction of the state prediction is interpreted to adjust the field winding resistance and temperature value. The algorithm is evaluated in simulations. The estimations of field current and field winding temperature track the measurements successfully.

Electric machine control

electrically excited synchronous machine

Author

Junfei Tang

Chalmers, Electrical Engineering, Electric Power Engineering

Bowen Jiang

Chalmers, Electrical Engineering, Electric Power Engineering

Luca Boscaglia

Chalmers, Electrical Engineering, Electric Power Engineering

Hao Chen

Chalmers, Electrical Engineering, Electric Power Engineering

Yujing Liu

Chalmers, Electrical Engineering, Electric Power Engineering

2022 International Conference on Electrical Machines, ICEM 2022

841-847
9781665414326 (ISBN)

2022 International Conference on Electrical Machines (ICEM)
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Subject Categories

Fusion, Plasma and Space Physics

Other Electrical Engineering, Electronic Engineering, Information Engineering

Condensed Matter Physics

DOI

10.1109/ICEM51905.2022.9910595

More information

Latest update

1/3/2024 9