后福岛时代核电技术升级和小型堆的发展

日本福岛核电站事故引发全球关于核电安全性的关注，核电是否能继续发展为世界提供清洁能源，其安全性成了一个重要的因素。为了解决能源发展困境和核电安全性的问题，拥有非能动安全性、高热效率等优势的第四代反应堆逐渐进入大众的视野；同时，具有安全、灵活、可靠、经济性好等特点的小型堆也应运而生。文章着重介绍第四代反应堆和小型堆的发展对核电领域带来的技术升级。

Nuclear Power Technology and Small Sized Reactors Development in Post-Fukushima Era

Japan's Fukushima nuclear power plant accident has brought a global concern about the safety of nuclear power. To determine whether nuclear power can be an alternative energy used by human beings, safety has become a valuable factor in consideration. In order to face the situations between energy predicament and nuclear safety, Gen-IV reactors, with the advantages of passive safety and high thermal efficiency, gradually come into the public view. Meanwhile, Small Sized Reactors also arise at the historic moment. Small Sized Reactors are safe, flexible, reliable and economic. This paper mainly introduces the technical upgrading of Gen-IV reactors and Small Sized Reactors.