2022 IEEE 3rd China International Youth Conference on Electrical Engineering (CIYCEE 2022)

With the rapid development of new energy power generation technology, distributed generation systems are connected to the power grid on a large scale, which requires the grid-connected system to have a certain fault crossing ability, especially to ensure that the grid voltage has a rapid and efficient recovery ability when the power grid voltage rises sharply. Therefore, a control strategy of the flexible interconnection device will be presented to realize the bidirectional power flow adaptive regulation, so that the system has the ability to pass through the fault period.