Parameter estimation of excitation systems from sampled data

Author

Liaw, C.M. ; Liu, T.S. ; Liu, A.H. ; Chen, Y.T. ; Lin, C.J.

Author_Institution

Dept. of Electr. Eng., Nat. Tsing Hua Univ., Ksinchu, Taiwan

Volume

37

Issue

5

fYear

1992

fDate

5/1/1992 12:00:00 AM

Firstpage

663

Lastpage

666

Abstract

The parameter estimation of excitation systems using a proposed indirect stochastic method is presented. In this method, the discrete-time ARMA model corresponding to each block of the excitation system is first identified from sampled input/output data. Then, the proper reduced order of the continuous-time model is determined using the concept of dominant energy modes. Finally, the parameters of the continuous-time model are found by matching its frequency response to that of the identified ARMA model. The proposed method is used to estimate the parameters of an excitation system in a pumped storage power plant. The results show that the estimated continuous-time models are rather close to those supplied by the vender

Keywords

exciters; frequency response; parameter estimation; pumped-storage power stations; synchronous generators; time series; continuous-time model; discrete-time ARMA model; dominant energy modes; excitation systems; frequency response; indirect stochastic method; parameter estimation; pumped storage power plant; reduced order; sampled data; synchronous generators; Control systems; Feedback loop; Frequency response; Parameter estimation; Power generation; Power system modeling; Power system stability; Reduced order systems; Stochastic systems; Transfer functions;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/9.135511

Filename

135511