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Security-Constrained Day-Ahead Operational Planning for Flexible Hybrid AC/DC Distribution Networks

1
Center for Integrated Systems Engineering and Advanced Technologies, Universiti Kebangsaan Malaysia, 43600 Bangi, Malaysia
2
Department of Engineering, Durham University, Durham DH1 3LE, UK
3
Instituto de Investigación Tecnológica (IIT), ETSI ICAI, Universidad Pontificia Comillas, 28015 Madrid, Spain
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(21), 4685; https://doi.org/10.3390/app9214685
Received: 14 September 2019 / Revised: 24 October 2019 / Accepted: 31 October 2019 / Published: 3 November 2019
(This article belongs to the Special Issue Flexible Transmission Systems and Applications)
A new active network management framework is presented based on a multi-period optimal power flow problem that is bounded by security constraints at the distribution level for upholding the security of supply. This can be achieved through active engagement with flexible demand and distributed generation to prepare for contingency events in day-ahead operational planning. This framework is coupled with a flexible hybrid AC/DC medium voltage (MV) distribution network topology. It contains an integrated multi-terminal medium voltage DC (MVDC) interface for a seamless interaction and integration of the flexible demand and generation on both AC and DC sides of the hybrid network. The active energy management framework when coupled with a flexible hybrid AC/DC topology provides unprecedented degrees of flexibility as well as security of operation under a variety of conditions. To this end, the 75-bus UK generic distribution network has been modified and converted into a hybrid AC/DC network using the integrated MVDC interface. This framework is then deployed to minimise operational costs to the network operator, considering costs of schemes such as distributed generation curtailment and flexible demand shifting, as well as network losses. Results show a significant improvement in operational costs when the network operates as a flexible hybrid when compared to a pure AC or a more conventional AC/DC hybrid. View Full-Text
Keywords: distribution-security optimal power flow; energy management; flexible demand and generation; integrated AC/DC system distribution-security optimal power flow; energy management; flexible demand and generation; integrated AC/DC system
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MDPI and ACS Style

Ibrahim, A.A.; Kazemtabrizi, B.; Renedo, J. Security-Constrained Day-Ahead Operational Planning for Flexible Hybrid AC/DC Distribution Networks. Appl. Sci. 2019, 9, 4685. https://doi.org/10.3390/app9214685

AMA Style

Ibrahim AA, Kazemtabrizi B, Renedo J. Security-Constrained Day-Ahead Operational Planning for Flexible Hybrid AC/DC Distribution Networks. Applied Sciences. 2019; 9(21):4685. https://doi.org/10.3390/app9214685

Chicago/Turabian Style

Ibrahim, Ahmad A., Behzad Kazemtabrizi, and Javier Renedo. 2019. "Security-Constrained Day-Ahead Operational Planning for Flexible Hybrid AC/DC Distribution Networks" Applied Sciences 9, no. 21: 4685. https://doi.org/10.3390/app9214685

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