Abstract
In order to assess the effects of the virtual power plants (VPP) participating in power grid regulation, this paper constructs a comprehensive evaluation index system of virtual power plants based on hydropower suppressing wind power fluctuations from three aspects: hydropower regulation ability, grid operation and dispatching, and economy of VPPs. The weight of each index is determined by the combination weighting method based on the entropy weight method (EWM) and the analytic hierarchy process (AHP). To verify the rationality and scientificity of the index and the weighting method in this paper, a regional power grid in Fujian has been taken as an example. Three VPP construction schemes including wind farms and small hydropower stations are selected and then the score of compare each index and total score of each scheme are calculated to determine the optimal scheme. The conclusion indicates that the evaluation index system and method is applied to the VPPs composed of wind power and hydropower and provides a theoretical reference for the construction and planning of VPPs in areas rich in wind and water resources.
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