With the construction and operation of Qinghai-Tibet direct current (DC) power system

the power shortage problem of Tibet is basically solved. But in view of the particularity of the weak framework

the security and stability control strategy needs precise coordinated control. Through analysis and research on the interface and strategy between the stability control system and DC pole control system

fiber-optic communication between them is realized for the first time. An accurate and precise control method for the stability control system and pole control system is presented. The system control technology between the stability control and DC pole control systems of the weak DC interconnection power system is summed up at the same time.