TWO DECOMPOSITION APPROACHES APPLIED TO THE MULTI-AREA OPTIMAL REACTIVE POWER FLOW PROBLEM
Granada Echeverri, Mauricio
Rider Flores, Marcos Julio
Mantovani, Jose Roberto S. [UNESP]
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Univ Nac Colombia, Fac Nac Minas
This paper applies two methods of mathematical decomposition to carry out an optimal reactive power flow (ORPF) in a coordinated decentralized way in the context of an interconnected multi-area power system. The first method is based on an augmented Lagrangian approach using the auxiliary problem principle (APP). The second method uses a decomposition technique based on the Karush-Kuhn-Tucker (KKT) first-order optimality conditions. The viability of each method to be used in the decomposition of multi-area ORPF is studied and the corresponding mathematical models are presented. The IEEE RTS-96, the IEEE 118-bus test systems and a 9-bus didactic system are used in order to show the operation and effectiveness of the decomposition methods.
Decentralized coordination, decomposition methods, multi-area power systems, optimal reactive power flow, ORPF, VAR planning
Dyna-colombia. Medellin: Univ Nac Colombia, Fac Nac Minas, v. 77, n. 162, p. 303-312, 2010.