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An evaluation of grid-integrated PV generation Based on AHP and Grey Correlation Method

Based on the influence caused by the grid-integrated photovoltaic (PV) generation, a two-stage evaluation index system is proposed. The index of voltage, frequency and total harmonic distortion (THD) are primary indexes. The index of influence coefficient, discrete degree, maximum volatility, mean THD and THD pass rate are secondary indexes. Then, the analytic hierarchy process (AHP) method is used to obtain the weight of the secondary index. Combined with the grey correlation method, a system to evaluate the impact of grid-integrated PV generation is established. Finally, the proposed evaluation method is applied to a certain area, and the result shows that such method is an effective and reasonable evaluation method.