Adaptability Analyses of Large-capacity Nuclear Power Units Accessing Northwest Grid

The adaptability of large capacity nuclear power plants after accessing in Northwest grid was analyzed, which focused on problems in terms of power flow distribution, grid stability level and short circuit level. The study result shows that the planned power grid of Northwest can satisfy the need for nuclear power plant with unit capacity of 1.75 GW, but the number of Shaanxi Ankang or Ningxia Wuzhong nuclear power units should not be more than 1 in, the number of Gansu Linxia nuclear power unit should not be more than 3.