Clock synchronization system and method for gas unit
A clock synchronization and unit technology, applied in the direction of time division multiplexing system, electrical components, multiplexing communication, etc., can solve the problems of time deviation, out-of-synchronization, affecting the reliability of accident history query event records, etc., to eliminate Deviation and out-of-synchronization, the effect of ensuring safe operation
Pending Publication Date: 2021-05-28
广东粤电中山热电厂有限公司
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[0004] The purpose of the present invention is to provide a clock synchronization system and method for gas-fired units, aiming to solve the problem in the prior art that the reliability of accident history query and event recording is seriously affected due to time deviation and asynchronous phenomena in the TCS system question
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[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.
[0027] In this example, if figure 1 As shown, a clock synchronization system for gas-fired units, the clock synchronization system includes: a satellite time synchronization subsystem and three sets of gas turbine TCS subsystems;
[0028] The satellite time synchronization subsystem includes: a first GIS master clock, a second GIS master clock and an extended clock, the first GIS master clock and the second GIS master clock receive standard time source signals from the GPS antenna and the CBD antenna, The extended clock is respectively connected to the first GIS master clock and the second GIS master clock through a multimode optical fiber, and is used to receive the timing output of the GIS master clock to the extended clock;
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The invention discloses a clock synchronization system and method for a gas turbine unit. The clock synchronization system comprises a satellite time synchronization subsystem and three sets of gas turbine TCS subsystems. The satellite time synchronization subsystem comprises a first GIS main clock, a second GIS main clock and an extended clock, the first GIS main clock and the second GIS main clock receive standard time source signals from a GPS antenna and a CBD antenna, and the extended clock is connected with the first GIS main clock and the second GIS main clock through multimode optical fibers. the extended clock is used for receiving time service output of a GIS master clock to an extended clock; the three sets of gas turbine TCS subsystems are respectively connected to the extended clock through three two-core cables, so that satellite time synchronization and internal network time synchronization of the gas turbine TCS system of the whole plant are completed, the phenomena of deviation and asynchronization of the internal time of the TCS system are eliminated, and safe operation of unit equipment is guaranteed.
Description
technical field [0001] The invention relates to the field of gas units, in particular to a clock synchronization system and method for gas units. Background technique [0002] It is mentioned in the method and system for realizing the consistent clock of the control system of the gas-fired unit and the waste heat unit with the application number CN201910440393.0: With the improvement of the automation level of power plants and substations, the power system has more and more requirements for the unified timing of the clock. The higher the value, although the automatic smart devices have real-time clocks inside, their inherent errors are unavoidable, and with the increase of running time, the cumulative error of time will become larger and larger, and the correct time measurement will be lost. [0003] According to the original design of the design institute, the GIS main clock of the GIS satellite time synchronization system provides the time source to the TCS system clock se...
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IPC IPC(8): H04J3/06
CPCH04J3/0644H04J3/0682
Inventor 杨若冰章俊翔游景李宜汶李江仪邱万福罗微黎若威王明星黄永昆
Owner 广东粤电中山热电厂有限公司