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作者：北京廣利核系統工程有限公司 李幼媛，王曉燕

摘要：標準要求核電廠數字化儀控系統（DCS）中的軟件需遵守標準IEEE 1012，IEC 60880和IEC 62138來執行V&V，但隨著核電的快速發展，國產化核電廠數字化儀表控制系統（DCS）面對著極大的市場需求，DCS中執行或影響安全功能所需的操作系統軟件難以尋找到滿足法規要求的核級供應商。為了降低開發難度、增強代碼可讀性以及可移植性，核電廠不可避免地引入商用操作系統軟件，而商用操作系統軟件的質量得不到保證可能會影響DCS的安全運行。商品級物項適用性確認（CGD）方法是確保核級商用操作系統軟件能夠正確可靠執行安全功能的重要手段，而國內尚未形成完整的技術體系。本文通過研究國內外CGD方法，初步形成了B類系統中商用操作系統軟件CGD工作流程和體系，并在國內某工程項目上成功進行實踐，為推動我國核電領域的CGD標準體系的建立及監管體系的完善奠定技術基礎。

關鍵詞：商用操作系統軟件；V&V；CGD；B類系統

Abstract: The standard requires that the software in the digital instrument control system (DCS) of the nuclear power plant shall comply with IEEE1012, IEC60880 andIEC62138 to implement V&V. In the face of great market demand, it is difficult to find the nuclear-level suppliersthat meet the requirements of laws and regulations for the operating system software required to implement or affect safety functions in DCS. In order to reduce development difficulty, enhance code readability and portability, it is inevitable for nuclear power plants to introduce commercial operating system software. However, the quality of commercial operating system software cannot be guaranteed, which may impact Research and Practice of Commercial Operating System Software CGD Applied to Class B Functions the safety normal running. Commercial Grade Dedication (CGD) method is an important means to ensure that nuclear-level commercial operating system software can correctly and reliably perform safety functions, but a complete technical system has not yet been formed in China. This paper has initially formed the CGD workflow and technology system of the commercial operating
system software in the class B system by studying the CGD method at home and abroad, and successfully practiced on a domestic engineering project, which laid a technical foundation for promoting the establishment and perfect of the CGD standard system in the domestic nuclear power field and the improvement of the regulatory system.

Key words: Commercial operating system software; V&V; CGD; Class B system

在線預覽：應用于B類功能的商用操作系統軟件CGD研究與實踐

摘自《自動化博覽》2020年8月刊