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Feasibility vs. Optimality in Distributed AC OPF - A Case Study Considering ADMM and ALADIN [in press]

Engelmann, Alexander; Faulwasser, Timm

Abstract (englisch):
This paper investigates the role of feasible initial guesses in solving Optimal Power Flow (OPF) problems in a distributed fashion. Secifically, we discuss the behavious of ADMM for large values of the penalization parameter "rho" leading to slow progress in twords the optimal solution. Furthermore, we show analytically that a feasible initialization combined with high penalization parameters might lead to pre-mature convergence of ADMM. We illustrate our findings using the IEEE57 bus system and comparing to ALADIN.

Zugehörige Institution(en) am KIT Institut für Automation und angewandte Informatik (IAI)
Publikationstyp Proceedingsband
Jahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000098918
Veranstaltung 2nd International Symposium on Energy System Optimization (ISESO 2019), Daegu, Südkorea, 09.09.2019 – 11.09.2019
Umfang 8 S.
Schlagworte distributed optimal power flow, ALADIN, ADMM
Nachgewiesen in arXiv
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