A Configuration Method for Energy Storage
Energy storage systems (ESSs), as a flexible resource, show great promise in DPV integration and optimal dispatching. Thus, an
This paper proposes a method for optimal dispatching of distribution networks that considers the four-quadrant power output of distributed energy storage. The method uses box uncertainty sets to describe the uncertainty of solar power output and load power.
The distributed energy storage system was composed of battery energy storage and power conversion system, but most of the previous studies focused on controlling the active power output and ignored its reactive power output capability .
The optimization dispatch model proposed in this paper for distributing energy storage in the network considers voltage deviation and includes constraints such as branch power flow, substation, controllable load operations, distributed energy storage operations, and limits for lines, voltage, and photovoltaic units.
Compared to centralized energy storage, a distributed energy storage configuration is more effective in improving the quality of the system's voltage. Allowing distributed energy storage to perform reactive power output can significantly enhance the system's voltage regulation ability, thereby reducing network and distribution power losses.
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