Analysis on Nonlinear Dynamic Characteristic of Synchronous Generator Rotor System

Xiaodong Wang and Caiqin Song

Complexity, 2019, vol. 2019, 1-14

Abstract:

This paper focuses on the swing oscillation process of the synchronous generator rotors in a three-machine power system. With the help of bifurcation diagram, time history, phase portrait, Poincaré section, and frequency spectrum, the complex dynamical behaviors and their evolution process are detected clearly in this power system with varying perturbation related parameters and different system parameters. Furthermore, combining the qualitative and quantitative characteristics of the chaotic motion, different paths leading to chaos coexisting in this system have been found. The Wolf method has been introduced to calculate the corresponding largest Lyapunov exponent, which is used to verify the occurrence of chaotic motion. These results obtained in this paper will contribute to a better understanding of nonlinear dynamic behaviors of synchronous generator rotors in a three-machine power system.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:hin:complx:3603172

DOI: 10.1155/2019/3603172

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