Short-term Complementary Operation of Hydro Photovoltaic Mixed Pumped Storage Integrated Power System
The combination of reversible units and the traditional hydropower units can form hybrid pumped-storage power station to increase the hydropower regulation capacity,which can be jointly operated with photovoltaic power sta-tions to stabilize the instability of new energy power generation.In order to study the complementary operation of hydro-photovoltaic-mixed pumped storage integrated system under typical days in different seasons,a short-term complementa-ry operation of hydro-photovoltaic-mixed pumped storage integrated system was established with the goal of maximum power generation and minimum output fluctuation.A two-layer nested method was proposed to solve the model consider-ing the fluctuation of photovoltaic output.The calculation results show that under the premise of different incoming water and different photovoltaic output processes,the hybrid pumped-storage power station can adopt different operating condi-tions to meet the objective function,which can not only promote the photovoltaic grid connection consumption,but also increase the hydropower generation capacity and reduce the spillage water.Thus,it provides a reference for the operation mode of hybrid pumped-storage power station under the grid connection of a large number of photovoltaic resources.
mixed pumped storage power stationcomplementary operation of hydro-photovoltaic-mixed pumped storageoutput fluctuationmulti-objective solving algorithmdouble nested model
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