Network communication structure of intelligent substation

The network communication structure comprises a plurality of intervals, intelligent units are configured at the intervals, the intelligent units are used for collecting analog quantity and switching quantity, the intelligent units are connected with a process layer network, the process layer network is connected with a measurement and control device, the measurement and control device is connected with a station control layer network, and the station control layer network is connected with a master station end. The potential of a single measurement and control device is fully excavated, and the waste of single interval configuration performance is avoided; according to the utility model, only two sets of measurement and control devices need to be configured for multiple intervals, the number of the intervals needs to be smaller than the maximum access interval of a single measurement and control device, the four-remote function can be realized, equipment redundancy is realized, the method intersects with the