Realization of power grid double direction automatic backup power supply switching function based on stability control device platform

It has realized the function of backup power supply switching between two main transformers and between two power supply lines by using powerful function of stability control device platform. It can use power supply line between two substations and stability control device's multi-communication interfaces to realize double direction backup power supply switching function through sending remote close instruction to another stability control device. It enhances the reliability of power supply of substation. After the success of backup power supply switching,if backup power supply line is overload, it can use the method of stability control to ensure power system safety stability operation by load-shedding.