The obvious trend is to increase the use of electrical systems on aircraft, leading to a continuous increase in demand for electricity on board. Due to the decrease in current level, this continuously increasing power consumption leads to an increase in DC voltage level to reduce energy loss and wiring size. However, traditional protection measures such as circuit breakers are not sufficient to protect new systems under high DC voltage, so it is necessary to introduce new technologies in the field of protection devices. One of them is solid-state power controller（SSPC）It combines the function of connecting the load to the busbar and protecting electrical equipment from overload and short circuit.

On the other hand, in these electrical systems, the connection of certain loads (such as very capacitive loads) means that new control strategies need to be developed to improve the connection process of SSPCs. This article introduces and analyzes a new advanced control strategy that can optimize the connection of capacitive loads using SSPC.

As a new generation device for circuit protection, solid-state power controllers（SSPC）Allow remote loads to switch directions while protecting the wiring. Through its electronic characteristics, SSPC can be equipped with other functions, including logic command based actuation, arc fault detection, current monitoring, and data transmission to crew members or maintenance systems... Weikewei has developed SSPC for small power applications in AC and DC currents.