| Abstract: |
| The optimal configuration of battery energy storage system is key to the designing of a microgrid. In this paper, a
optimal configuration method of energy storage in grid-connected microgrid is proposed. Firstly, the two-layer
decision model to allocate the capacity of storage is established. The decision variables in outer programming
model are the capacity and power of the storage system. The objective is the least investment on the battery
energy storage system. The decision variable in inner programming model is the charging and discharging
power of battery. The objective is the lowest power fluctuation on the connection line. Then a case containing a
grid-connected microgrid with wind power, photovoltaic, battery energy storage and load is studied, and the
multi-scenario probabilistic method is used. The last result of energy storage configuration is calculated through
the probability of each scene. |
| Key words: Energy storage, Optimal configuration, Dynamic programming, Two-layer decision, Scene analysis |
| DOI：10.1186/s41601-017-0067-8 |
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| Fund: |
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