ZHANG Jiangfeng,GUO Binqi,WANG Tianyu,et al.Provincial and Regional Active Power Cooperative Control Technology for Energy Storage on Power Grid Side Based on Wide-area Information Interaction[J].Automation of Electric Power Systems,2023,47(17):128-136.
ZHANG Jiangfeng,GUO Binqi,WANG Tianyu,et al.Provincial and Regional Active Power Cooperative Control Technology for Energy Storage on Power Grid Side Based on Wide-area Information Interaction[J].Automation of Electric Power Systems,2023,47(17):128-136. DOI: 10.7500/AEPS20220814005.
Provincial and Regional Active Power Cooperative Control Technology for Energy Storage on Power Grid Side Based on Wide-area Information Interaction
In order to fully integrate the provincial/regional grid-side energy storage resources and solve the problems of power grid peak-shaving
frequency regulation and internal section overload
this paper studies the provincial and regional active power cooperative control technology for energy storage on power grid side. Based on the existing smart grid regulation system
the energy storage control modeling is realized through the automatic generation control (AGC) of the main provincial/regional dispatching station. The fast transmission of energy storage command information between provinces and regions is realized by the wide-area information interaction technology. By establishing an energy storage control area outside the main control area of AGC
the regional energy storage is aggregated into equivalent centralized energy storage and participates in unified provincial/regional decision-making together with the provincial energy storage. Then
this paper proposes an energy storage power allocation strategy considering state of charge (SOC) balance
which can improve the adjustable capacity of energy storage resources by rapidly reducing the SOC difference between provincial/regional energy storage. Finally
the effectiveness of the proposed strategy is verified by the actual operation effect of a provincial power dispatching control center in China
which can achieve the collection and monitoring of provincial energy storage on the power grid side by the provincial dispatch center
as well as provincial and regional cooperative control in emergency situations.
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