Abstract: High penetration of distributed photovoltaic（PV） systems into the power distribution networks has caused voltage violations, constraining the PV absorption capacity.This paper first analyzes the impact of distributed PV integration on the voltage distribution in the network.Subsequently, it works out a time-of-use electricity pricing optimization model and a distributed photovoltaic acceptance optimization model to enhance the PV absorption capacity of the distribution network.The time-of-use pricing optimization model is a multi-objective framework aimed at increasing consumer power usage while reducing electricity costs, with constraints including consumer power demand and pricing.Based on the results of the time-of-use pricing model, the distributed photovoltaic acceptance optimization model is proposed to maximize the PV absorption in the distribution network.This model involves constraints derived from the time-of-use pricing model, such as network load and line flow limitations.A case study on a real-world distribution network system is presented, and the results demonstrate that the application of these two optimization models effectively enhances the PV absorption capacity.