Abstract:In order to realize the multi-interval four-remote function and the interlocking and program operation functions under the IEC61850 standard, realize centralized measurement and control, realize the sharing of the inter-spacing information, and facilitate the problems of inter-interval five-proof interlocking and program operation. Based on the existing intelligent substation technology, this paper proposes a new centralized station-based measurement and control device design. On the basis of this scheme, in order to solve the problem of how to ensure and improve the reliability of the centralized station domain measurement and control operation, this paper proposes a redundant configuration scheme of centralized station area measurement and control device and a mode of interval-oriented handover, which solves The problem of widening the interval between active and standby switching. By comparing only the two interval operating conditions in the redundancy group, the method can analyze and judge the advantages and disadvantages of the running status, clarify the main device at the current interval, effectively solve the problem of deadlock when switching, and accurately switch the fault interval. Switching disturbances are minimized and switching time is reduced. The data synchronization mechanism also ensures the integrity and consistency of the data after the master-slave interval switch, so that the data is not lost and not sent.