In order to ease the fossil energy crunch, new energy sources need to be fully utilized. Clean energy sources such as wind, light, and nuclear energy are important tools to solve environmental and energy problems. However, in the process of researching new energy farms, there are some problems when they are integrated into the power system. In order to ensure the stability of new energy power plants, it is necessary to conduct an in-depth analysis of the grid connection technology of new energy farms. In the study, it is necessary to learn about the specific problems of the stability of the grid connection of new energy power plants, and to clarify the specific application of the grid connection technology of new energy power plants from the application principle and advantages of the grid connection technology of new energy power plants. Through simulation experiments, the positive effect of grid connection technology of new energy power plants in improving the stability of power systems was determined.