CAJ | 학술논문

在分析了间歇混沌模型-Duffing振子的混沌特性基础上，研究了电力系统谐波的混沌检测原理与方法，基于Matlab/Simulink软件平台，建立了仿真模型，给出了在强噪声下电力系统谐波检测的仿真结果。仿真结果表明，Duffing振子对于与参考信号频差较小的周期信号较为敏感，对频差较大的周期干扰信号具有较强的免疫力，应用于实际电力系统谐波的该振子检测精度高，抗噪性强。
재분석료간헐혼돈모형-Duffing진자적혼돈특성기출상，연구료전력계통해파적혼돈검측원리여방법，기우Matlab/Simulink연건평태，건립료방진모형，급출료재강조성하전력계통해파검측적방진결과。방진결과표명，Duffing진자대우여삼고신호빈차교소적주기신호교위민감，대빈차교대적주기간우신호구유교강적면역력，응용우실제전력계통해파적해진자검측정도고，항조성강。
Based on the analysis of the chaotic characte-ristic of intermittent chaotic model-Duffing oscillator,this paper studies the principle and methods of power system harmonic chaotic detection. Based on Matlab/Simulink, the simulated model is established. The simulation results shows that Duffing oscillator is sensitive to the periodic signal having the tiny frequency difference with the referential signal and is immune to the periodic signal having larger frequency difference with the referential signal. The application of the oscillator in power system harmonic detection results in high precision and good resistance to noise.