TY - JOUR
T1 - Parameter estimation using an orthogonal series expansion
AU - Rico, J.
AU - Heydt, G. T.
N1 - Funding Information:
The autohs tranhk teihr colleagues at Arizoa Pnublic Servce aind the Oio Sthtea University for teihr a sistance in tishwok, respecially D. BajrAgrawal, Mr. Duo gas Slelin, and D. Ali rKyaneih. The Žnancial suppt oof terhNSF supported Indus-ty/rUniversity CooraptveieRsearceh Cntreefor te hAdvancd eContolrof Energy and PweroSytemss (APSC) andEte hNatoial nScencie Fonduatoniis acknowledged. Dr. J.Rico is vsitnigitehArizoa SntatUeniversity during 19 9, andteh support of te hUniversity of Mchocáinaand ASU are acknowledged.
PY - 2000
Y1 - 2000
N2 - This paper presents an innovative alternative to estimate parameters of a system for which a dynamic model is known. The focus of this paper is the estimation of the armature circuit parameters of large utility generators using real time operating data. Other applications are possible. The alternatives considered are the use of orthogonal series expansions, in general, and the Hartley series, in particular. The main idea considers the use of orthogonal series expansions for fitting operating data (e.g., voltage and currents measurements). This allows writing a set of linear algebraic equations that can be “solved” in the least squares sense for the unknown parameters. The method shown utilizes the pseudoinverse in the solution. The essence of the approach is linear state estimation. Several alternative types of orthogonal expansions are briefly discussed. Although solutions are the same in all domains, one wishes to employ the expansion that gives the most efficient computation. The approach may be used for static as well as dynamic problems. The approach is tested for noise corruption likely to be found in measurements. The method is found to be suitable for the processing of digital fault recorder data to identify synchronous machine parameters.
AB - This paper presents an innovative alternative to estimate parameters of a system for which a dynamic model is known. The focus of this paper is the estimation of the armature circuit parameters of large utility generators using real time operating data. Other applications are possible. The alternatives considered are the use of orthogonal series expansions, in general, and the Hartley series, in particular. The main idea considers the use of orthogonal series expansions for fitting operating data (e.g., voltage and currents measurements). This allows writing a set of linear algebraic equations that can be “solved” in the least squares sense for the unknown parameters. The method shown utilizes the pseudoinverse in the solution. The essence of the approach is linear state estimation. Several alternative types of orthogonal expansions are briefly discussed. Although solutions are the same in all domains, one wishes to employ the expansion that gives the most efficient computation. The approach may be used for static as well as dynamic problems. The approach is tested for noise corruption likely to be found in measurements. The method is found to be suitable for the processing of digital fault recorder data to identify synchronous machine parameters.
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U2 - 10.1080/07313560050082749
DO - 10.1080/07313560050082749
M3 - Article
AN - SCOPUS:0038417344
SN - 0731-356X
VL - 28
SP - 761
EP - 777
JO - Electric Machines and Power Systems
JF - Electric Machines and Power Systems
IS - 8
ER -