DocumentCode :
1323538
Title :
A new algorithm for optimal parameter estimation of a synchronous machine from frequency tests based on LAV approximations
Author :
Soliman, S.A. ; Emam, S.E.A. ; Christensen, G.S.
Author_Institution :
Dept. of Electr. Power & Machines, Ain Shams Univ., Cairo, Egypt
Volume :
14
Issue :
3
fYear :
1989
Firstpage :
98
Lastpage :
102
Abstract :
Many techniques exist for estimation of synchronous machine parameters from tests. In these techniques, a good initial guess is essential for convergence of the parameters. This paper presents a new algorithm to estimate synchronous machine parameters from tests. The proposed algorithm is based on least absolute value (LAV) error approximations. It does not require an initial guess, and it is a non-iterative technique. The solution is obtained in two steps. In the first step, the problem is formulated as a linear least squares (LS) estimation problem, as formulated in Reference 2. The solution to this problem yields approximate parameter values. The residual of each measurement is then calculated. In the second step, a number of residuals equal to the rank of the matrix H are put to zero. The residuals selected are those with the smallest values. A numerical example from the literature is reported, in which results obtained using the proposed algorithm are compared with those obtained using the standard least squares algorithm.
Keywords :
parameter estimation; synchronous machines; LAV approximations; frequency tests; least absolute value; linear least squares; optimal parameter estimation; synchronous machine; Approximation algorithms; Equations; Estimation; Least squares approximations; Mathematical model; Vectors;
fLanguage :
English
Journal_Title :
Electrical and Computer Engineering, Canadian Journal of
Publisher :
ieee
ISSN :
0840-8688
Type :
jour
DOI :
10.1109/CJECE.1989.6592950
Filename :
6592950
Link To Document :
بازگشت