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基于现代谱估计的光伏系统谐波仿真分析

作  者:
于思文;杨勇
单  位:
沈阳农业大学信息与电气工程学院
关键词:
光伏发电系统;光强变化;谐波;现代谱估计
摘  要:
光伏发电系统在并网时产生的出力波动会影响电网的电能质量。对太阳能示范电站光伏发电系统进行检测,观察光伏发电系统并网输出功率等因素的波动,分析其对低压配网造成的电能质量谐波问题。利用现代谱估计算法与传统傅里叶分析方法对信号进行仿真对比,结果表明现代谱估计算法能够更加精确地得到各次谐波分量。
译  名:
Analysis on Harmonic Simulation of Photovoltaic System based on Modern Spectrum Estimation
作  者:
YU Siwen;YANG Yong;College of Information and Electrical Engineering, Shenyang Agricultural University;
关键词:
photovoltaic power generation system;;intensity variation of light;;harmonics;;modern spectral estimation
摘  要:
Because of the nonlinear characteristics of photovoltaic power generation system itself as well as the random output of the grid, the output fluctuations will affect the power quality of power grid. In this paper, it did the detection of photovoltaic power generation system of the solar energy demonstration power plant, and observed the fluctuation of grid output power of photovoltaic power generation system and other factors, analyzed the caused harmonic problem of power quality in low voltage distributing network. It did simulation comparison to the signal by using modern spectral estimation algorithm and traditional Fourier analysis method, the result shows that modern spectral estimation algorithm can get more accurate various harmonics.

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