Research and Simulation on Interference Signal Detection of Distributed Generation Connected to the Grid Based on Duffing Oscillator

Abstract:

The chaotic system is sensitive to initial value,and this characteristic can be applied in the interference signal detection.There are periodic state,critical state and chaotic state in a chaotic system.When the system is in the critical state,a small perturbation of system parameter may lead to a qualitative change of the systems state.This paper introduces a method to detecting interference signals based on the chaotic system and a new idea of using it into the detection of distribution network disturbance when distributed generation is connected to the grid.In this paper we choose the duffing oscillator as a chaotic system to study,use MATLAB to carry on the simulation,and research the changes of the system when the interference signal to be detected is added to the system.By means of observing the phase locus chart and time domain chart the interference signal will be detected.

• Periodical: Applied Mechanics and Materials (Volumes 530-531)
• Pages: 357-360
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.530-531.357
• Online since: February 2014
• Authors: Jing Tao Zhao*, Min Zhang, Xiang He, Qiang Fu
• Keywords: Chaos, Distributed Generator (DG), Duffing Oscillator, Signal Detection

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