Master station smart power grid scheduling technology support system-based clock synchronization method

Abstract

The present invention discloses a master station smart power grid scheduling technology support system-based clock synchronization method, comprising the following steps of: S1, connecting a plurality of clock sources to a local area network, and setting priorities of the clock sources; S2, setting the clock source status monitoring service on a clock acquisition server, and updating the priorities of the clock sources in real time; S3, determining a main clock acquisition server and a standby clock acquisition server by using node management provided by a smart power grid scheduling technology support system, and acquiring clocks; S4, comparing the clock information of a local clock with acquired clock information of the clock source with the highest priority by the main clock acquisition server, and if a difference exists, synchronizing the local clock; and S5, exchanging a piece of clock synchronization message with another working node by the main clock acquisition server, and calculating and eliminating the time delay and updating the time of the another working node by the another working node. The method improves the time accuracy of the smart power grid scheduling technology support system, and ensures the consistency of the system clock.

Description

technical field [0001] The invention relates to a clock synchronization method, in particular to a clock synchronization method based on a smart grid dispatching technical support system of a master station, and belongs to the technical field of electric power system dispatching. Background technique [0002] With the development of smart grid and the advancement of technology, the level of power informatization, automation, and interaction is getting higher and higher, and the requirements for the information and data accuracy of power grid operation and system software are also getting higher and higher. , the foundation of automation, the importance of power dispatching and operating systems at all levels has become increasingly prominent. Various disciplines such as power generation control, power generation planning, and state estimation require unified and accurate system time as the software basis. Therefore, the time accuracy and Stability puts forward higher requir...

AI Technical Summary

Problems solved by technology

[0004] Since the system only provides one clock source, when the clock source fails, it will inevitably cause the system clock timing interruption, which cannot guarantee the stability of the system clock. At the same time, the node clock synchronization is performed through the NTP service, and the timing initiative is completely delivered to the operating system. The entire process of synchronization cannot be intervened, even if the clock source has a clock error, it is powerless, and finally causes the entire system clock error

Moreover, the time synchronization delay between the clock acquisition server and other servers is ignored, which often causes the problem of out-of-synchronization of the clocks of each node

In addition, the correctness and hidden dangers of the clock data cannot be monitored, and the reliability of the clock data cannot be guaranteed

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