Paper Information

Journal:   IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION B- ENGINEERING   DECEMBER 2007 , Volume 31 , Number B6; Page(s) 629 To 640.
 
Paper: 

NONLINEAR ROBUST MODELING OF SYNCHRONOUS GENERATORS

 
 
Author(s):  DEHGHANI M., KARARI M.*
 
* DEPT. OF ELECTRICAL ENGINEERING, AMIRKABIR UNIVERSITY OF TECHNOLOGY, TEHRAN, I. R. OF IRAN
 
Abstract: 

Application of the nonlinear Hidentification method to identify a synchronous generator model is investigated in this paper. The linear Hidentification method has been well established in the literature for robust modeling despite noise and system uncertainties. Since many practical systems such as synchronous generators are nonlinear, linear models identified for particular operating conditions do not perform well for other operating conditions. To overcome this shortcoming, the linear Hidentification method has been modified to cover some nonlinearities of the systems such as saturation in synchronous machines. The derived proposed algorithm is then applied to a seventh order nonlinear model of a synchronous machine with saturation effect. In this study, the field voltage is considered as the input and the active output power and the terminal voltage are considered as the outputs of the synchronous machine. Simulation results show good accuracy of the identified models.

 
Keyword(s): SYNCHRONOUS MACHINES, IDENTIFICATION, NONLINEAR SYSTEMS, POWER SYSTEM MODELING, H∞ IDENTIFICATION METHODS
 
References: 
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