Multi-port frequency dependent network equivalents for the EMTP

Author

Morched, A.S. ; Ottevangers, J.H. ; Martí, L.

Author_Institution

Ontario Hydro, Toronto, Ont., Canada

Volume

8

Issue

3

fYear

1993

fDate

7/1/1993 12:00:00 AM

Firstpage

1402

Lastpage

1412

Abstract

A method is developed to reduce large power systems to single- and multiport frequency-dependent equivalents. These equivalents consist of simple RLC modules that faithfully reproduce the frequency characteristics of the network. The method is implemented in the EletroMagnetics Transient Program (EMTP) and has been tested at Ontario Hydro. The implementation involves a preprocessor program, the Frequency Dependent Equivalent (FDNE), to generate the model and a EMTP time step loop module to calculate the transient response. The use of the FDNE results in major reductions in computer time and is especially beneficial for multicase statistical EMTP studies. An example showing the accuracy and efficiency of the FDNE when used to reduce a large 500 kV network is presented.<>

Keywords

digital simulation; equivalent circuits; multiport networks; power system analysis computing; software packages; transient response; 500 kV; Canada; EMTP; EletroMagnetics Transient Program; FDNE; Frequency Dependent Equivalent; RLC modules; accuracy; digital simulation; efficiency; frequency characteristics; multiport frequency-dependent equivalents; power system analysis computing; preprocessor program; transient response;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.252667

Filename

252667