Sensitivity Analysis of Adaptive Scheduling Rules for Hydro-photovoltaic Hybrid Power Systems Based on Ensemble Kalman Filter
The hydro-photovoltaic(PV)hybrid power system is an important measure to solve the power supply problem,build a low-carbon energy system,and realize the goal of ″dual carbon″.The parameters of linear scheduling function are dynamically updated by ensemble Kalman filter,and the medium and long period adaptive scheduling rules for hydro-PV hybrid power system are constructed.Taking Longyangxia hydro-PV hybrid power station as the research object,three un-certainty parameters,namely,prediction error,observation error and ensemble size,are introduced in the assimilation process.The effects of uncertainty parameter values on the time-varying parameters and operational results of the model are analyzed,and the sensitivity of the parameters is qualitatively analyzed.The results are as follows.Prediction error,obser-vation error and set size have no significant effect on time-varying parameters and operation results of the model,and none of the three are sensitivity parameters.The research results can provide a reference for the uncertainty analysis of ensemble Kalman filter parameters and the study of adaptive scheduling of multi-energy complementary systems.
ensemble Kalman filterhydro-photovoltaic hybrid power systemschanging environmentadaptive operationsensitivity analysis