Cooperative Scheduling Strategy of Energy Storage Systems for Regional Grid Supplied by Renewable Energy

doi:10.12096/j.2096-4528.pgt.20027

Abstract

Abstract:

With the decrease of fossil energy reserves and the deterioration of natural environment, increasing the proportion of renewable energy in power grid becomes the main goal of power grid development in the future. Considering the constraints of energy storage systems, hydropower station, photovoltaic power station, wind farm and power grid operation, a cooperative scheduling strategy of energy storage systems in the regional power grid with renewable energy was proposed, and an optimal scheduling model was established. The optimization objective function was the maximum consumption rate of new energy and the output in the regional power grid. In order to improve the accuracy, the model was transformed into a mixed integer linear programming problem to solve. Finally, a modified IEEE 9-node system was used for simulation verification.

Key words: renewable energy, energy storage system, cooperative scheduling strategy, mixed integer linear programming

CLC Number:

TK01
TM734

Rui MA, Xiangjun LI, Wenqi LI, Dongxue GAO, Jingchao ZHANG, Ningxi SONG. Cooperative Scheduling Strategy of Energy Storage Systems for Regional Grid Supplied by Renewable Energy[J]. Power Generation Technology, 2021, 42(1): 31-39.

Figures/Tables 7

Fig.1 Diagram of active power flow

Fig.2 Modified IEEE 9-node system

Fig.3 Curves of Wind, PV and Load power

Fig.4 Scheduling plan curve of renewable energy

Fig.5 System node voltage distribution

Fig.6 Power curves of energy storage systems

Fig.7 SOC curves of energy storage systems

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