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Coordinated-Decentralized Optimal Reactive Power Flow in Multi-Area Electric Power Systems

Authors: Julio César López; Universidad Estadual Paulista; Jesús María López Lezama; Universidad de Antioquia; José Roberto Sanches Mantovani;

Coordinated-Decentralized Optimal Reactive Power Flow in Multi-Area Electric Power Systems

Abstract

En este artículo se presenta una nueva metodología para la solución del problema de Flujo de Potencia Óptimo Reactivo (FPOR) en sistemas eléctricos de potencia interconectados multiárea. El principal aporte de este artículo es el uso de una estrategia descentralizada y coordinada que permite mantener autonomía y confidencialidad en los procesos de operación de cada área. En el modelo propuesto de FPOR multiárea, los Operadores del Sistema de Transmisión (OSTs) de cada área operan de forma independientemente, y no necesitan conocer explícitamente los datos de áreas vecinas, siendo solo necesario intercambiar información de frontera relacionada con las líneas de interconexión entre áreas. La metodología propuesta se basa en la aplicación de Programación Lineal Sucesiva (PLS) y el esquema de descomposición por áreas es desarrollado a través del método de Dantzig-Wolfe. Para probar la robustez y eficiencia de la metodología propuesta se utiliza un sistema de tres áreas, cada una de las cuales corresponde a un sistema IEEE de 118 barras. El problema es solucionado de forma centralizada y descentralizada y se obtienen resultados idénticos.

This paper presents a novel methodology to solve the problem of Optimal Reactive Power Flow (ORPF) in interconnected multi-area power systems. The main contribution of this paper is the use of a coordinated-decentralized strategy that allows keeping autonomy and confidentiality in the operating processes of each area. In the proposed model of multiarea ORPF the Transmission System Operators (TSOs) of each area operate independently, and do not need explicit information regarding neighbor areas, being only necessary to exchange border information related to the interconnection lines between areas. The proposed methodology is based on the application of Successive Linear Programming (SLP) and the decomposition scheme by areas is developed through the Dantzing-Wolfe method. To show the robustness and efficiency of the proposed approach a three-area system is used, in which each area corresponds to an IEEE118-bus test system. The problem is solved in a centralized and decentralized fashion obtaining identical results.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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