Feasible Islanding Operation of Electric Networks with Large Penetration of Renewable Energy Sources considering Security Constraints

Seyed Arash Alavi, Valentin Ilea, Alireza Saffarian, Cristian Bovo, Alberto Berizzi and Seyed Ghodratollah Seifossadat
Additional contact information
Seyed Arash Alavi: Electrical Engineering Department, Shahid Chamran University of Ahvaz, Ahvaz 61357-831351, Iran
Valentin Ilea: Energy Department, Politecnico di Milano, 20133 Milan, Italy
Alireza Saffarian: Electrical Engineering Department, Shahid Chamran University of Ahvaz, Ahvaz 61357-831351, Iran
Cristian Bovo: Energy Department, Politecnico di Milano, 20133 Milan, Italy
Alberto Berizzi: Energy Department, Politecnico di Milano, 20133 Milan, Italy
Seyed Ghodratollah Seifossadat: Electrical Engineering Department, Shahid Chamran University of Ahvaz, Ahvaz 61357-831351, Iran

Energies, 2019, vol. 12, issue 3, 1-25

Abstract: The high penetration of Renewable Energy Sources into electric networks shows new perspectives for the network’s management: among others, exploiting them as resources for network’s security in emergency situations. The paper focuses on the frequency stability of a portion of the grid when it remains islanded following a major fault. It proposes an optimization algorithm that considers the frequency reaction of the relevant components and minimizes the total costs of their shedding. The algorithm predicts the final frequency of the island and the active power profiles of the remaining generators and demands. It is formulated as a Mixed-Integer Non-Linear Programming problem and the high computation time due to a large-size problem is mitigated through a simplified linear version of the model that filters the integer variables. The algorithm is designed to operate on-line and preventively compute the optimal shedding actions to be engaged when islanding occurs. The algorithm is validated for a typical distribution grid: the minimum amount of shedding actions is obtained while the most frequency reactive resources are maintained in operation to assure a feasible frequency. Finally, time-domain simulations show that the optimal solution corresponds to the one at the end of the network’s transients following the islanding.

Keywords: islanded operation; frequency control; smart grids; optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/3/537/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/3/537/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:3:p:537-:d:204283

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().