IDHEAS方法应用研究

人员可靠性分析（HRA）作为核电厂概率安全评价（PSA）中的重要组成要素，一直是影响PSA分析质量和风险见解的关键内容。目前业界中已有的HRA方法众多，不同的HRA方法各有优缺点且存在基础数据过老的问题，为此，美国核管理委员会联合HRA领域权威专家开发了一种综合性的HRA方法--人员失误事件综合分析系统，简称IDHEAS方法。本文对IDHEAS方法进行了系统性的研究，对相关实施流程和要点进行归纳，并运用IDHEAS方法进行了实例分析。理论研究和实例分析表明，IDHEAS方法在工程应用上具备可操作性，能较好弥补其他HRA方法的局限性。同时，IDHEAS方法亦存在对时间参数不敏感、部分分析内容依赖于分析人员经验等特点。

Study on Application of IDHEAS Method

Human reliability analysis (HRA), as an important element of probability safety assessment (PSA) of nuclear power plant, has always been the key content that affects the quality and risk insight of PSA. Up to now, there are many HRA methods and each method has its disadvantages, and the HRA database is always too old. So a new HRA method which called IDHEAS (integrated human event analysis system) method was developed by the U.S. NRC. The IDHEAS method was studied systematically and the case analysis was carried out in the paper. Theoretical research and case analysis results indicate that IDHEAS method is feasible for engineering project and it can solve the limits of other HRA methods. At the same time, IDHEAS method is insensitive to time parameters and some contents of this method depend on the experience of the analyst.