Parameter Sensitivity Analysis of a Synchronous Generator

Fodor, Attila and Magyar, Attila and Hangos, Katalin (2010) Parameter Sensitivity Analysis of a Synchronous Generator. HUNGARIAN JOURNAL OF INDUSTRIAL CHEMISTRY, 38 (1). pp. 21-26. ISSN 0133-0276

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Abstract

A previously developed simple dynamic model of an industrial size synchronous generator is analyzed in this paper. The constructed state-space model consists of a nonlinear state equation and a bilinear output equation. It has been shown that the model is locally asymptotically stable with parameters obtained from the literature for a similar generator. The effect of load disturbances on the partially controlled generator has been analyzed by simulation using a PI controller. It has been found that the controlled system is stable and can follow the set-point changes in the effective power well. The sensitivity of the model for its parameters has also been investigated and parameter groups have been identified according to the system’s degree of sensitivity to them. This groups form the different candidates of parameters for subsequent parameter estimation. The ways of applying the developed methods to other generators used in the automotive industry are also outlined.

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