Modeling, Sizing, and Control of an Excitation Booster for Enhancement of Synchronous Generators Fault Ride-Through Capability: Experimental Validation

This paper proposes a complete approach to modeling, sizing, and controlling ultracapacitor-based excitation boosters (EB) aimed at improving the fault ride-through capability of synchronous generators equipped with bus-fed static excitation systems. The EB model is a simplified one suitable for tra...

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Bibliographic Details
Published in:IEEE transactions on energy conversion 2016-12, Vol.31 (4), p.1304-1314
Main Authors: Diez-Maroto, Luis, Rouco, Luis, Fernandez-Bernal, Fidel
Format: Article
Language:English
Subjects:
Bus fed static excitation system
Excitation
excitation booster
fault ride through capability
Generators
grid codes
Modelling
Power system stability
Sizing
Stability analysis
Supercapacitors
Synchronism
Synchronous generators
Synchronous machines
Transient analysis
Transient stability
ultracapacitor
Voltage fluctuations
Voltage sags
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Summary:This paper proposes a complete approach to modeling, sizing, and controlling ultracapacitor-based excitation boosters (EB) aimed at improving the fault ride-through capability of synchronous generators equipped with bus-fed static excitation systems. The EB model is a simplified one suitable for transient stability simulations. Sizing is performed using transient stability simulations. It is aimed at maximizing the machine critical clearing time subject to machine rotor insulation and ultracapacitor features. The developed control system includes fast voltage sag and loss of synchronism detectors. The proposed approach can be used to design ultracapacitor-based EB in real-world applications. A dedicated test environment based on 10-kVA synchronous machine has been used to validate the proposed approach.
ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.2016.2575004