核电机组设计可用率因子模型的研究

Study on Availability Factor Model Promotion in Nuclear Power Plants

设计可用率因子是衡量核电机组设计和运行业绩一个非常重要的指标,也是世界核电运营者协会(WANO)对世界各核电厂经济性能进行对标的指标之一。提升核电机组可用率因子,是业内一直关注的重点和研究的方向。本文在中国改进型三环路压水堆(CPR1000)核电机组多年运行实践的基础上,搭建适用于群厂核电机组的可用率模型,提出提升设计可用率因子的方法和途径,为新建核电厂的设计提供思路和方法,也可供后续核电厂设计可用率因子指标的评价提供参考。

The availability factor is a very important indicator to measure the design and operation performance of nuclear power units. It is also the economic performance indicator of WANO （The World Association of Nuclear Operators） to measure the world＇s nuclear power plants. To improve the availability factor of nuclear power units is the focus and research direction of the industry. In this paper, on the basis of many years of good practices in CPR1000 nuclear power station, the availability model of nuclear power units is established, and the methods and ways to improve the design availability factor are provided, to optimize the design of new nuclear power plants and to provide the reference for the availability factor index evaluation in follow-up nuclear power plants.