Preliminary communication

Nonlinear control of STATCOM for stabilization of synchronous generator

Shubhransu S. Dash ; Department of Electrical Engineering, College of Engineering, Anna University, Chennai, Tamilnadu, INDIA
B. K. Panigrahi ; Department of Electrical Engineering, University College of Engineering, Burla, Orissa, INDIA

Abstract

A Static Synchronous Compensator (STATCOM) is a typical Flexible AC Transmission System (FACTS) device playing a vital role as a stability aid for small and large transient disturbances in an interconnected power system. This paper deals with design and evaluation of a feedback linearizing nonlinear controller for STATCOM installed in a single-machine infinite-bus power system. In addition to the co-ordinated control of AC and DC bus voltages, the proposed controller also provides good damping to the electromechanical oscillation of the synchronous generator under transient disturbances. The efficiency of the control strategy is evaluated by computer simulation studies. The comparative study of these results with the conventional cascade control structure establishes the elegance of the proposed control scheme.

Keywords

STATCOM, FACTS, feedback linearization, nonlinear control, power system control

Hrčak ID:

316881

URI

https://hrcak.srce.hr/316881

Publication date:

22.12.2003.

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