DAY-AHEAD AND INTRA-DAY TWO-STAGE ROLLING OPTIMAL DISPATCH OF POWER GRID CONSIDERING ACCESS OF COMPOSITE ENERGY STORAGE POWER STATIONS

Wang Zhenhao; Ma Shuang; Li Guoqing; Bian Jing

doi:10.19912/j.0254-0096.tynxb.2021-0444

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (10) : 400-408. DOI: 10.19912/j.0254-0096.tynxb.2021-0444

DAY-AHEAD AND INTRA-DAY TWO-STAGE ROLLING OPTIMAL DISPATCH OF POWER GRID CONSIDERING ACCESS OF COMPOSITE ENERGY STORAGE POWER STATIONS

Wang Zhenhao, Ma Shuang, Li Guoqing, Bian Jing

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Abstract

In order to improve the acceptance capacity of the power system for photovoltaic and reduce the impact of photovoltaic fluctuation on the operation of the power system, this paper proposes a day-to-day two-stage "source storage load" coordinated optimal dispatching strategy of the power system considering the battery energy storage and pumped storage composite energy storage. First of all, in the day ahead scheduling model, to minimize the total operating cost of the system, the two terminal coordination optimization of the power grid is carried out by combining the composite energy storage resources and load side demand response resources. Then, on a short time scale within a day, both supply and demand ends coordinate to optimize the unit output and demand side response, and give full play to the peak shaving capacity of pumped storage and the inhibition of battery energy storage on photovoltaic fluctuations. The proposed model is solved by CPLEX software. The example results verify that the model can coordinate and optimize various adjustable resources in the system and effectively reduce the light rejection rate of the system.

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Wang Zhenhao, Ma Shuang, Li Guoqing, Bian Jing. DAY-AHEAD AND INTRA-DAY TWO-STAGE ROLLING OPTIMAL DISPATCH OF POWER GRID CONSIDERING ACCESS OF COMPOSITE ENERGY STORAGE POWER STATIONS[J]. Acta Energiae Solaris Sinica. 2022, 43(10): 400-408 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0444

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