Novel dynamic modelling of parallel HVAC/HVDC system

Author

Najafi, H.R. ; Robinson, F. ; Shoulaie, A.

Author_Institution

Univ. of Birjand, Iran

Volume

3

fYear

2004

Firstpage

1160

Abstract

A novel approach is presented for efficiently modeling a power system, which includes parallel-connected HVAC, and HVDC transmission systems. The proposed model has been derived for a system in which an AC generator is connected to an infinite bus system through a parallel AC tie line and a HVDC link. In addition to state-space representation, a block diagram representation has been formed to analyze system stability. In this new block diagram representation, the dynamic characteristics of the system are expressed in terms of a newly developed H constant. The development of the block diagram and associated H constants are explained. The new model is evaluated using PSCAD/RTDS real time digital simulation.

Keywords

HVDC power transmission; flexible AC transmission systems; power system CAD; power system dynamic stability; power system simulation; power transmission control; state-space methods; AC generator; H constant; PSCAD; RTDS; block diagram representation; dynamic characteristics; dynamic modelling; infinite bus system; parallel HVAC-HVDC system; power system modeling; power system stability; power transmission systems; real time digital simulation; state-space representation; AC generators; HVDC transmission; Nonlinear dynamical systems; PSCAD; Power system dynamics; Power system modeling; Power system simulation; Power system stability; Power system transients; Stability analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Universities Power Engineering Conference, 2004. UPEC 2004. 39th International

Conference_Location

Bristol, UK

Print_ISBN

1-86043-365-0

Type

conf

Filename

1492208