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Slack Selection for Unintentional Islanding: Practical Validation in a Benchmark Microgrid

Upon disconnection from the main grid, a microgrid is expected to continue working in islanded mode. Thus, (at least) one resource needs to act as slack and compensate for power variations to keep the power balance, and ensure quality of service. Although several resources might be eligible to become a slack (energy storage systems in particular), some are more suitable than others depending on the state of the resources and the grid during the islanding maneuver. In this paper, we validate a recently proposed method to select the best slack candidate in real-time using an abstract representation of the internal state of each available resource. Our main contribution is the validation of the method in a real-scale microgrid, including a discussion of implementation and deployment aspects. To support our findings, we present extensive experimental results representing different operating conditions.

Author(s):

Lorenzo Reyes-Chamorro    
École Polytechnique Fédérale de Lausanne
Switzerland

Wajeb Saab    
École Polytechnique Fédérale de Lausanne
Switzerland

Roman Rudnik    
École Polytechnique Fédérale de Lausanne
Switzerland

Andreas Martin Kettner    
École Polytechnique Fédérale de Lausanne
Switzerland

Mario Paolone    
École Polytechnique Fédérale de Lausanne
Switzerland

Jean-Yves Le Boudec    
École Polytechnique Fédérale de Lausanne
Switzerland

 

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