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Advanced SVC control for damping power system oscillations

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3 Author(s)
E. N. Lerch ; Siemens AG, Erlangen, Germany ; D. Povh ; L. Xu

A new SVC (static VAR compensation) control for damping of power system oscillations has been developed. To increase system damping an SVC uses a phase angle signal estimated from the measurement of voltage and power at the SVC location. By means of an optimization and identification procedure, optimized design of the damping control with various control concepts can be determined, taking into account nonlinear power systems. As a result of this method it is possible to increase power system damping considerably, in particular in critical situations close to the stability limit, using only locally measured state variables at the SVC, thus leading to an increase in the transmission capability of the power system

Published in:

IEEE Transactions on Power Systems  (Volume:6 ,  Issue: 2 )