Title :
Calculation of transmission line transients using polar decomposition
Author :
Gustavsen, Bjern ; Semlyen, A.
Author_Institution :
Dept. of Electr. Eng., Toronto Univ., Ont., Canada
fDate :
7/1/1998 12:00:00 AM
Abstract :
The paper presents a new power transmission line model suitable for the calculation of electromagnetic transients on overhead lines and underground cables. This is achieved by expanding the fitted modes of a conventional line model with constant transformation matrices into simple fractions on the diagonal, and by extending the transformation matrices into rectangular matrices. The new transformation matrices are then refined by a simple iteration procedure based on least squares fitting in the phase domain. The method is demonstrated to give accurate simulation results for both overhead lines and underground cables
Keywords :
iterative methods; least squares approximations; matrix algebra; power system transients; power transmission lines; transmission line theory; constant transformation matrices; electromagnetic transients; iteration procedure; least squares fitting; overhead power lines; phase domain; polar decomposition; power transmission line model; rectangular matrices; simulation results; underground power cables; Cables; Delay effects; Electromagnetic modeling; Frequency dependence; Matrix decomposition; Power overhead lines; Power system transients; Power transmission lines; Transmission line matrix methods; Transmission lines;
Journal_Title :
Power Delivery, IEEE Transactions on
