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首页> 外文期刊>Annals of nuclear energy >Alternative off-site power supply improves nuclear power plant safety
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Alternative off-site power supply improves nuclear power plant safety

机译：备用场外电源可改善核电站的安全性

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摘要

A reliable power system is important for safe operation of the nuclear power plants. The station blackout event is of great importance for nuclear power plant safety. This event is caused by the loss of all alternating current power supply to the safety and non-safety buses of the nuclear power plant. In this study an independent electrical connection between a pumped-storage hydro power plant and a nuclear power plant is assumed as a standpoint for safety and reliability analysis. The pumped-storage hydro power plant is considered as an alternative power supply. The connection with conventional accumulation type of hydro power plant is analysed in addition. The objective of this paper is to investigate the improvement of nuclear power plant safety resulting from the consideration of the alternative power supplies. The safety of the nuclear power plant is analysed through the core damage frequency, a risk measure assess by the probabilistic safety assessment. The presented method upgrades the probabilistic safety assessment from its common traditional use in sense that it considers non-plant sited systems. The obtained results show significant decrease of the core damage frequency, indicating improvement of nuclear safety if hydro power plant is introduced as an alternative off-site power source.
机译：可靠的电力系统对于核电厂的安全运行非常重要。电站停电事件对于核电站安全至关重要。此事件是由于失去向核电厂的安全和非安全总线提供的所有交流电源而导致的。在这项研究中，假定抽水蓄能电站和核电站之间的独立电气连接是安全性和可靠性分析的一个观点。抽水蓄能电站被视为替代电源。此外，还分析了与常规蓄能式水力发电厂的联系。本文的目的是研究由于考虑替代电源而导致的核电厂安全性的提高。通过核心损坏频率分析核电厂的安全，这是通过概率安全评估评估的风险度量。在考虑非工厂现场系统的意义上，本文提出的方法将概率安全评估从其传统的常规用法升级了。获得的结果表明，堆芯损坏频率显着降低，表明如果将水力发电厂用作替代的异地电源，则可以改善核安全。

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