As the current concept of sustainable energy continues to take root in the hearts of the people, more requirements are also put forward for the application and development of electric energy. In the field of distribution network, due to the development of smart grid, higher requirements are also put forward for the automatic control of distribution network. Distribution network feeder automation is an important part of distribution network automation system. Its operation status has a direct impact on the implementation effect of distribution network automation system. In order to better promote the operation level of distribution network feeder automation, based on the analysis of distribution network automation theory, combined with the currently popular medium-voltage high-speed analog communication technology, this paper indicated that it can be used in distribution network feeder automation, and emphatically analyzed the application of medium-voltage high-speed analog communication technology in distribution network feeder automation. Through research, it was found that this technology had good application value in distribution network feeder automation. It can improve the anti-attack of Circuit 4 and Circuit 1 communication data by 12% and 17.2% compared with traditional methods. In addition, this technology can effectively reduce its fault location isolation detection and power recovery time, and improve power quality and power safety. In addition, the research on distribution network feeder automation in this paper can also enrich the content of energy research and promote the sustainable development of energy.
