数字化核电站非1E级DCS软件验证与确认

Verification and Validation of Non-1E DCS Software in Digital Nuclear Power Plant

DCS软件的高质量及高可信度对于系统的可靠性和可用性起着至关重要的作用。本文阐述了数字化核电站非1E级DCS软件验证与确认适用的国内外标准以及V&V模型,提出了DCS软件完整性等级与功能分类的关系,以及对应的V&V独立性要求。给出了DCS软件V&V的方法以及文件体系。本文对项目中开展DCS软件V&V工作提供了指导和建议。

The high quality and high reliability of DCS software plays a critical role in the reliability and availability of the DCS system.This paper elaborates the applicable domestic and international standards for non-1E DCS software verification and validation(V&V)of digital nuclear power plants,and addresses the V&V model.This paper also addresses the relationship between DCS software integrity level and categories of I&C functions,together with the V&V requirements of independence corresponding to DCS software integrity level.The V&V methods and the V&V documentation hierarchy of DCS software are provided.This paper provides guides and suggestions for V&V efforts of DCS software.