Coordinated design and performance evaluation of UPFC supplementary modulation controllers

• Published in: International journal of electrical power & energy systems Vol. 27; no. 2; pp. 101 - 111
• Main Authors: Padiyar, K.R., Saikumar, H.V.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.02.2005; Elsevier
• Subjects: Applied sciences; Coordinated design; Disturbances. Regulation. Protection; Electrical engineering. Electrical power engineering; Electrical power engineering; Exact sciences and technology; Low-frequency oscillations; Power electronics, power supplies; Power networks and lines; Supplementary modulation controller; Supplementary modulation controller; Coordinated design; Low-frequency oscillations; Performance evaluation; Waveform; Flexible AC transmission systems; Unified power flow controller; Power system stability; System design; Power electronics; Power system security; Low frequency; Phase compensation; Bus system; Case study; Experimental result; Electromechanical oscillation; Multimachine power system; Numerical simulation; Comparative study
• ISSN: 0142-0615; 1879-3517
• DOI: 10.1016/j.ijepes.2004.08.010

Mitigation of low-frequency electro-mechanical oscillations is essential for secure operation of power systems. The fast acting, power electronics based FACTS controllers which are capable of improving both steady state and dynamic performance permit newer approaches to system stabilization. The objective of the work presented in this paper is to carry out a coordinated design of supplementary modulation controllers (SMCs) for UPFC and to evaluate their performance. The effectiveness of the SMCs in damping the critical modes is tested on a four machine, 10 bus system.