Research on Power Buffer Design of 14 MV Extremely High Voltage Laboratory Distribution System

For a long time, aircraft safety incidents caused by lightning strikes have been frequent, with statistics showing that there are more than a hundred such incidents each year. Therefore, research on aircraft lightning protection is necessary. The high-voltage laboratory serves as a testing ground for aircraft lightning experiments, and its power distribution system needs to supply a series of pulse loads such as impulse voltage generators and impulse current generators. In order to reduce the impact on the power grid, power buffering elements are often incorporated into the power distribution system of the high-voltage laboratory. This paper compares several energy storage methods that can be used as power buffering elements and then compares several topological structures of hybrid energy storage. The battery-supercapacitor fully active hybrid energy storage is ultimately selected as the power buffering element, and the power requirements of the load are analyzed and predicted, and a control strategy is proposed.