核电厂控制与保护系统应用软件潜在的功能缺陷与防御措施

Potential Faults and Defense Measures in the Software Used in Control and Safety System of Nuclear Power Plant

分析了核电厂系统功能设计、数字化仪表控制系统中软件系统设计、开发、验证与确认中产生潜在的功能缺陷的原因 ;阐述了缺陷的种类、可能造成的后果与影响 ;论述了如何通过增大核电厂系统的设计裕量、强化纵深防御、采用规范的与成熟的编程、编译与验证技术来防止人因错误与编程的缺陷 。

The potential faults occurred in the function design of the process system and in the design, development, verification and validation of the software system used in the Reactor Protection System and Engineered Safety Features Actuation System are analyzed. Then the possible consequences and affects due to the software faults are stated. Finally the proper measures to preclude the software functional and human factor engineering faults such as to increase system design margin, employ the standardized and proven programming, compilation and verification technology are addressed to improve and enhance the reliability of software system and the safety of Nuclear Power Plant.