反應爐跳脫系統軟體需求與設計階段發展研究

本研究以核能電廠反應爐跳脫系統的建置實例，包括主要、後備與手動等三部分之反應爐跳脫功能，進行軟體需求與設計階段之發展與測試研究。主要反應爐跳脫功能之輸入採用窄幅水位與爐頂壓力，以四選二邏輯運算決定是否跳脫反應爐；後備反應爐跳脫功能之輸入採用寬幅水位與中子通率，以三選二邏輯運算決定是否跳脫反應爐；手動反應爐跳脫功能採用二組手動開關並聯，當其皆通路時執行跳脫反應爐。軟體發展過程之需求階段，以架構圖說明系統與軟體功能需求；在設計階段以功能設計邏輯圖，說明相關軟體功能設計細部資料。此研究成果提供確保軟體發展在各階段文件正確性之方法，及具可追溯性之文件審查實際參考範例。

關鍵字

數位儀控系統；軟體發展與測試；反應爐跳脫系統

並列摘要

In this study, the development of software requirement and design phases is investigated by implementing a Reactor Trip System (RTS) with Primary, Backup and Manual Reactor Trip Functions. The inputs of Primary Reactor Trip system are four divisions incorporated with two-out-of-four voters and these inputs are narrow-ranged analog signals of water level and dome pressure while the voter is determined to trigger the reactor trip function. With similar configuration, the inputs of Backup Reactor Trip include three divisions incorporated with two-out-of-three voters. However, these inputs are wide-ranged analog signals of water level and neutron flux to determine the triggering to the reactor trip function as well. Accordingly, Manual Reactor Trip comprises two manual switches connected in parallel and it will be triggered when both of the switches are opened. In the requirement phase to software development, architecture diagram describes the functions of the system. In design phase, logic diagrams are used to describe detailed information. This study provides researchers with a practical approach to ensure the appropriateness of documents in all phases of software development, and demonstrates traceable materials for document review.

並列關鍵字

digital instrumentation and control system ； software development and test ； reactor trip system

國際替代計量

反應爐跳脫系統軟體需求與設計階段發展研究

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