Functional Accuracy of Static and Dynamic Models of Electrical Systems Obtained after an Elemination of Several Nonlinear Loads

Elektroenergetika 2011 : Proceedings of the 6th International Scientific Symposium on Electrical Power Engineering 2011
Georgi Georgiev, Inga Zicmane

This paper concerns the reduced static and dynamic models obtained after the Jordan elimination of nonlinear loads by replacement of the indicative form of load characteristics with approximated quadratic ones and vice versa. Carrying out of such two-way approximation causes some small error which is object of the presented study. Two kinds of approximations have been considered with any influence only of voltage. Theoretical estimation of accuracy is proved on practical examples where electrical system’s behavior before and after a reduction of corresponding model is compared.

Keywords
load model accuracy; dynamic load characteristic; static load characteristic; load models; non-liniar load; friquancy dependent load models; network reduction; Jordan elimination;transient process; stability; complex network; steady state;

Georgiev, G., Zicmane, I. Functional Accuracy of Static and Dynamic Models of Electrical Systems Obtained after an Elemination of Several Nonlinear Loads. In: Elektroenergetika 2011 : Proceedings of the 6th International Scientific Symposium on Electrical Power Engineering, Slovakia, Stará Lesná, 21-23 September, 2011. Košice: Technical University of Košice, 2011, pp.81-84. ISBN 978-80-553-0724-4.

Publication language
Russian (ru)