Abstract
In order to solve the problem of seasonal distribution transformer overload in distribution network, especially in rural power grid, an intelligent energy storage device for distributed distribution station area is developed in this paper. The device is connected in parallel to the main line of 380V low voltage line in the distribution station area. The device can compensate the power of the overload distribution transformer, and alleviate the low voltage problem at the head end of the substation area caused by 10kV line overload or distribution transformer heavy overload. This paper introduces the working principle, control strategy, software and hardware design scheme of intelligent energy storage device in distributed distribution station area. The correctness and effectiveness of the device are verified by field operation.
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