This paper analyses the operation of a variable-speed wound-field synchronous generator (WFSG) connected to a constant-voltage dc-system. The challenges for the operation under variable speed and constant voltage and the need for a dc-dc converter to adjust the stator side voltage are pointed out. The boost converter introduces a degree of freedom which can be used to optimize the WFSG efficiency. An optimization analysis is carried out with a simplified model. Optimal rectifier-side dc-voltage and field current values are found as a function of speed, torque and WFSG parameters. The analysis is validated by simulations.
Minimum-loss operation of a variable-speed wound-field synchronous generator
Iacchetti M. F.;
2016-01-01
Abstract
This paper analyses the operation of a variable-speed wound-field synchronous generator (WFSG) connected to a constant-voltage dc-system. The challenges for the operation under variable speed and constant voltage and the need for a dc-dc converter to adjust the stator side voltage are pointed out. The boost converter introduces a degree of freedom which can be used to optimize the WFSG efficiency. An optimization analysis is carried out with a simplified model. Optimal rectifier-side dc-voltage and field current values are found as a function of speed, torque and WFSG parameters. The analysis is validated by simulations.| File | Dimensione | Formato | |
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PEMD 2016 (final).pdf
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