An Analytical Method for Reduction of Frequency-Dependent Static and Dynamic Models of Electrical Systems
Elektroenergetika 2011 : Proceedings of the 6th International Scientific Symposium on Electrical Power Engineering
2011
Georgi Georgiev,
Inga Zicmane
Precise representation of the loads dependant on
voltage and frequency in standard power form is normally used
in modern static and dynamic models of electrical systems. In this
paper the method of an elimination of such loads for the purpose
of reduction of model’s dimension is offered. It is carried out
through appropriate approximations of the load characteristics
made simultaneously on voltage and frequency. Approximation
of voltage leads to preservation of the linear form of the node
equations for currents that allows applying the Jordan
elimination. At the same time the specific mathematical
operations are involved and performed over frequencydependent
elements. As a result the number of nodes decreases
and new frequency-dependent connections and loads are
appeared in nodes of the reduced scheme. They promote exactly
the same course of considered processes.
Atslēgas vārdi
dynamic load characteristic; load models; non-liniar load; friquancy dependent load models; static load characteristic;network reduction; Jordan elimination; transient process; stability; complex network; steady state
Georgiev, G., Zicmane, I. An Analytical Method for Reduction of Frequency-Dependent Static and Dynamic Models of Electrical Systems. No: Elektroenergetika 2011 : Proceedings of the 6th International Scientific Symposium on Electrical Power Engineering, Slovākija, Stará Lesná, 21.-23. septembris, 2011. Košice: Technical University of Košice, 2011, 85.-88.lpp. ISBN 978-80-553-0724-4.
Publikācijas valoda
English (en)