油气管道生产监控系统时钟同步方案  

Clock synchronization scheme for production supervision system in oil and gas pipelines

作　　者：杨喜良[1] 李官政[2] 贾立东[2] 杨全博[2] 刘胜楠[1] 夏秀占[3] YANG Xiliang LI Guanzheng JIA Lidong YANG Quanbo LIU Shengnan XIA Xiuzhan(PetroChina Pipeline R ＆ D Center/National Engineering Laboratory for Pipeline Safety PetroChina Pipeline Company Qinhuangdao Oil ＆ Gas transmission Sub-company, PetroChina Pipeline Company)

机构地区：[1]中国石油管道科技研究中心/油气管道输送安全国家工程实验室 [2]中国石油管道公司 [3]中国石油管道公司秦皇岛输油气分公司

出　　处：《油气储运》2017年第3期297-302,309,共7页Oil & Gas Storage and Transportation

基　　金：中国石油管道公司科研项目"油气管道生产监控系统时钟同步技术研究";20140305

摘　　要：鉴于中国石油长输油气管道站场的生产监控系统时钟不同步问题,在分析和总结现有两类8种时钟同步技术及结合生产监控系统在役设备和系统架构基础上,利用NTP、GPS、北斗、modbus通信和CIP通信等技术,提出了SCADA系统、泄漏监测系统、视频监控系统、语音电话系统及第三方设备等生产监控系统需要授时设备的时钟同步方法及PLC数据时间标签插入方法。制定了调控中心、分控中心、输油气站场和阀室的授时方案,并利用该方案在漠河-大庆原油管道多个站场进行了示范应用,实现了中俄原油管道漠河-大庆段的生产监控系统时钟全线同步,并对PLC上传的数据插入时间标签,可重现真实的事件发生时序,为生产及事件分析提供保障。With consideration to non-synchronization of clocks in production supervision systems at stations along PetroChina＇s long-distance oil and gas pipelines, 8 clock synchronization technologies in two categories, together with inservice devices and system framework of production supervision systems have been analyzed and summarized. In addition, NTP, GPS, Beidou, Modbus and CIP technologies have been reviewed to clarify methods for clock synchronization and insertion of time label in PLC data for the SCADA system, leakage monitoring system, video monitoring system, voice phone system, third party equipment and other production monitoring systems that may require time-synchronization. In addition, the synchronization scheme have been proposed for the control center, subsidiary control centers, stations and valve chambers along the pipelines. The proposed scheme has been deployed in multiple stations along the Mohe-Daqing Crude Oil Pipeline to synchronize clocks in production supervision systems. With time label inserted in data uploaded from PLC, time sequence of events can be reflected accurately to provide necessary guarantee for accurate analyses of production activities and relevant events.

关 键 词：油气管道 时钟同步 时间标签 生产监控系统 

分 类 号：TE832[石油与天然气工程—油气储运工程]