The impact of distributed power access on the voltage of the distribution network is one of the most important issues for distributed power access. In order to adapt to the access requirements of the rapid development of distributed power sources in the future

this paper studies the influencing factors when distributed power sources are connected to the distribution network based on the actual situation. The influence of auxiliary measures such as distributed power supply′s own power factor adjustment

reactive power compensation

and energy storage device on the maximum allowable access capacity of distributed power sources is analyzed. The calculation results show that the power factor adjustment of distributed power sources can help to increase the allowable access capacity of distributed power sources

but the effect is not obvious. Reactive power compensation devices and energy storage devices can greatly increase the allowable access capacity of distributed power sources. This is an effective measure for future development of distributed power sources.