Method for data transmission between master station and slave station in intelligent substations

The invention relates to a method for data transmission between a master station and a slave station in intelligent substations. The method comprises the following steps that: S1, a configuration channel and a data transmission channel are established between the master station and the slave station; S2, the master station acquires the CFG-1 configuration file of the slave station through the configuration channel, edits and selects required steady-state data and dynamic data to form a CFG-2 configuration file, and then issues the CFG-2 configuration file to the slave station through the configuration channel; S3, the master station sends a real-time data transmission starting command to the slave station through the data transmission channel; and S4, the slave station sends steady-state real-time data and dynamic real-time data to the master station regularly through the data transmission channel according to the received CFG-2 configuration file. According to the method of the invention, the steady-state da