Abstract
This paper presents a new method of analyzing very fast transients in power systems by including the higher modes in the wave propagation analysis which, if ignored, can lead to erroneous results. A characteristic matrix is introduced to characterize the mode reflections and couplings to replace the scalar reflection and transmission coefficients used in the conventional traveling wave method. A sample transient calculation is carried out for a lossless coaxial cable terminated with a circular waveguide which shows the necessity to consider higher modes in very fast transient studies. The proposed approach also applies to more complicated structures such as gas insulated substations.
Original language | English |
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Pages (from-to) | 25-32 |
Number of pages | 8 |
Journal | Electric Power Systems Research |
Volume | 38 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jul 1996 |
Externally published | Yes |
Keywords
- Electromagnetic waves
- Lossless power systems
- Substations
- Switchgear
- Transmission coefficients
- Very fast transients
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering