Flexible switching matching device of power system

The invention discloses a bus tie switch flexible switching device in the field of power systems, and particularly relates to a flexible switching matching device of a power system. The flexible switching matching device of the power system comprises a rectifying inverting adjusting device, a control module, a man-machine interface and a detecting device. The detecting device traces and generates a voltage vector which is opposite to the voltage difference of two routes of buses in real time, the voltage vector is connected to the two ends of a bus tie switch in parallel through the rectifying inverting adjusting device, and therefore zero-voltage non-circular-current switching-on operation is realized. The flexible switching matching device is characterized in that based on the technical theory of FACTS, a flexible switching operation method is firstly applied, and the defects of an existing rigid operation technology are overcome. The flexible switching matching device has the advantages that non-rigidity and smooth switching operation is provided for bus tie switching of a power supply and distribution system, zero-potential switching-on operation of the bus tie switch is guaranteed, the operation time is short, normal operation of power supply is not affected, and the stability and the reliability of the power system are effectively improved.