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遲宗嶺     ★北京廣利核系統工程有限公司

摘要：在CPR1000核電項目機組工程中，非安全級核電站數字化儀控系統 （NC-DCS系統）應用軟件平臺采用的是Macs6.2.0系統，涉及到的第三方設 備不參與邏輯運算，且只在HMI流程圖中顯示和報警的數據，均采用通訊站進 行數據傳輸，涉及邏輯運算的則采用硬接線方式直接采集數據。通訊站硬件 采用的是一款OAMA01A（或OAMA03A）型工控機嵌入式微型計算機，一款無 風扇全封閉嵌入式微型計算機。軟件采用的是以Linux-2.6.16.25為藍本的裁剪 版的操作系統，由于Linux系統在工程應用上有許多優點，便于工程師編程和 調用程序，同時，也是一款開放性的操作系統，因此受到編程者的青睞。在 CPR1000核電機組項目調試和運行過程中，有時發現部分通訊站上傳的數據點 顯示遲緩，刷新頻率明顯和設計預期不相符。為此本文結合了現場調試經驗， 分析了數據上傳遲緩的原因及后續采取的措施，詳細描述了鏈路參數的設置規 則，對由鏈路參數設置或者操作過程不規范等原因，導致L2層數據顯示遲緩的 根源進行了總結分析，為后續機組優化參數提供了參考，同時也為同類型機組 及今后華龍一號的調試提供借鑒。

關鍵詞：通訊站；鏈路參數；故障

Abstract: In the CPR1000 nuclear power project, the digital instrument control  system(NC-DCS system) platform for non-safe nuclear power plants uses Macs  6.2.0, which involves third-party equipment that does not participate in logical  operations. And only the data displayed and alerted in the HMI flow chart uses  communication stations for data transmission, and hard-wired methods for logic  operations are used. The communication station hardware uses an OAMA01A  (or OAMA03A) industrial control machine embedded microcomputer, a fan-free  fully enclosed embedded microcomputer. The software uses a tailored version  of the operating system based on Linux-2 .6.16.25. Since the Linux system has  many advantages in engineering applications, it is easy for engineers to program  and invoke programs. At the same time, it is also an open operating system. It  is therefore favored by programmers. During the debugging and operation of  the CPR1000 nuclear power plant project, it is sometimes found that the data  points uploaded by some communication stations are slow to display, and the  refresh frequency is obviously inconsistent with the actual scene. In this paper,  combined with the field debugging experience, the reasons for the delay in  data upload and the measures taken are analyzed. At the same time, the setting  rules of link parameters are described in detail, and the link parameters are set  or the operation process is not standardized. The root causes of the delay in L2  layer data display are summarized and analyzed, and operational experience  feedback is compiled to provide reference for the optimization parameters  of subsequent units. At the same time, it also provides reference for the  commissioning of the same type of unit and Hualong No. 1.

Key words: Communication station; Link parameters; Faults

點擊預覽：基于非安全級DCS通訊站中鏈路參數設置分析及研究.pdf

摘自《自動化博覽》2021年5月刊