Coordinated Multi-area Economic Dispatch via Critical Region Projection

TitleCoordinated Multi-area Economic Dispatch via Critical Region Projection
Publication TypeJournal Article
Year of Publication2017
AuthorsGuo, Ye, Lang Tong, Wenchuan Wu, Boming Zhang, and Hongbin Sun
JournalIEEE Transactions on Power Systems
Pagination1 - 1
Date Published01/2017
ISSN0885-8950
KeywordsRM13-002
Abstract

A coordinated economic dispatch method for multi-area power systems is proposed. Choosing boundary phase angles as coupling variables, the proposed method exploits the structure of critical regions in local problems defined by active and inactive constraints. For a fixed boundary state given by the coordinator, local operators compute the coefficients of critical regions containing the boundary state and the optimal value functions then communicate them to the coordinator who in turn optimizes the boundary state to minimize the overall cost. By iterating between local operators and the coordinator, the proposed algorithm converges to the global optimal solution in finite steps, and it requires limited information sharing.

DOI10.1109/TPWRS.2017.2655442
Short TitleIEEE Trans. Power Syst.