Problems and Application Limits of Numerical Simulations

Authored by: Akihiro Ametani , Naoto Nagaoka , Yoshihiro Baba , Teruo Ohno , Koichi Yamabuki

Power System Transients

Print publication date:  November  2016
Online publication date:  November  2016

Print ISBN: 9781498782371
eBook ISBN: 9781315366791
Adobe ISBN:


 Download Chapter



Because the electromagnetic transients program (EMTP) is based on circuit theory assuming transverse electromagnetic (TEM) mode propagation, it cannot give an accurate solution for a high-frequency transient that involves non-TEM mode propagation. Additionally, the EMTP cannot deal with a circuit of unknown parameters. A numerical electromagnetic analysis (NEA) method, on the other hand, can deal with a transient associated with both TEM and non-TEM mode propagations. Furthermore, it requires no circuit parameters. However, this method results in numerical instability if the analytical space, the boundary conditions, the cell size, etc., are not appropriate. Also, it requires massive computer resources, and the existing codes are not generalized enough to deal with various types of transients, especially in a large network.

Search for more...
Back to top

Use of cookies on this website

We are using cookies to provide statistics that help us give you the best experience of our site. You can find out more in our Privacy Policy. By continuing to use the site you are agreeing to our use of cookies.