摘要：Under the background of electricity transmission and distribution reform, the profit model of power grid companies has changed, and the investment in distribution network is facing new constraints. Scientific and reasonable investment scale of distribution network is the key factor to ensure the operating income and sustainable development of power grid companies. Based on this, this paper comprehensively considers the power distribution network investment capacity and demand of power grid companies, applies the theory of system dynamics, constructs the decision-making model of power distribution network investment scale considering the constraint of power transmission and distribution price, and puts forward the optimization strategy of power distribution network investment scale under the constraint of power transmission and distribution price. On this basis, the above model is applied to simulate and optimize the investment scale of distribution network in the next power transmission and distribution price supervision period of a provincial power grid. The results show that the permitted investment scale of distribution network under the supervision of electricity transmission and distribution price can meet the investment demand of distribution network to ensure the safe operation of the system, while the investment of public welfare projects should be reasonably planned according to the actual operation of the network.
关键词：Transmission and distribution price;System Dynamics;Distribution network;Investment scale optimization.
