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An advanced STATCOM model for optimal power flows using Newton's method.

Kazemtabrizi, B. and Acha, E. (2014) 'An advanced STATCOM model for optimal power flows using Newton's method.', IEEE transactions on power systems., 29 (2). pp. 514-525.

Abstract

This paper presents the optimal power flow (OPF) formulation of a recent power flow STATCOM model. The new model puts forward an alternative, insightful interpretation of the fundamental frequency operation of the PWM-controlled voltage source converter (VSC), in an optimal fashion. The new model makes provisions for the explicit representation of the converter's internal ohmic and switching losses which in the context of an OPF formulation, yields an optimum operating point at which these power losses are at a minimum. The STATCOM model possesses unparalleled control capabilities in the operational parameters of both the AC and DC sides of the converter. Such control modeling flexibility is at its best when expressed in the context of an OPF solution using Newton's method. The STATCOM equations are incorporated into the OPF formulation using Lagrangian functions in quite a natural manner for efficient optimal solutions using a single frame-of-reference. The inequality constraint set of variables is handled equally well using the multipliers method. The prowess of the new model is demonstrated using two sample systems.

Item Type:Article
Keywords:FACTS, Newton's method, STATCOM, Optimal power flows, Voltage source converter.
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1109/TPWRS.2013.2287914
Publisher statement:© 2014 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Date accepted:23 October 2013
Date deposited:02 October 2014
Date of first online publication:05 November 2013
Date first made open access:02 October 2014

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