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Reactive power optimization with different objectives in large power systems including HVDC systems and FACTS devices

Thukaram, D and Lakpathi, S and Ravishankar, K and Surendra, S (2010) Reactive power optimization with different objectives in large power systems including HVDC systems and FACTS devices. In: 2009. ICPS '09. International Conference on Power Systems, 27-29 Dec. 2009, Kharagpur.

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Present day power systems are growing in size and complexity of operation with inter connections to neighboring systems, introduction of large generating units, EHV 400/765 kV AC transmission systems, HVDC systems and more sophisticated control devices such as FACTS. For planning and operational studies, it requires suitable modeling of all components in the power system, as the number of HVDC systems and FACTS devices of different type are incorporated in the system. This paper presents reactive power optimization with three objectives to minimize the sum of the squares of the voltage deviations (ve) of the load buses, minimization of sum of squares of voltage stability L-indices of load buses (¿L2), and also the system real power loss (Ploss) minimization. The proposed methods have been tested on typical sample system. Results for Indian 96-bus equivalent system including HVDC terminal and UPFC under normal and contingency conditions are presented.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: Copyright 2009 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.
Keywords: AC/DC system;FACTS;L-index;Newton-Raphson;UPFC;Voltage stability.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 20 Apr 2012 12:46
Last Modified: 20 Apr 2012 12:46
URI: http://eprints.iisc.ac.in/id/eprint/44318

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