Abstract：The access of the photovoltaic power station injects certain harmonics into the power grid, and also increases the harmonic line loss of the power grid. Aiming at the problem that the traditional method relies too much on the state of electrical measurement, a method of photovoltaic harmonic path identification based on information entropy method is proposed. The article first discusses the quantitative relationship between line harmonics and harmonic source harmonics, and then uses the nature of information entropy and the grid node admittance matrix to obtain the quantitative relationship between line harmonic current and photovoltaic harmonic current. Finally, the effectiveness of the proposed method is numerically simulated. The proposed algorithm has certain practicability and provides a new computational idea for photovoltaic harmonic analysis and research.
韩绍禹, 李新辉. 基于信息熵和节点导纳矩阵的光伏谐波路径初探[J]. 电气技术, 2019, 20(5): 55-58.
Han Shaoyu, Li Xinhui. Identification of photovoltaic power station harmonic transmission path by entropy. Electrical Engineering, 2019, 20(5): 55-58.
2019, Vol. 20 
