The invention discloses a distributed photovoltaic collaborative optimization investment decision-making method and
system for a power distribution network, and the method comprises the steps: predicting power utilization
modes and power utilization demands in a target investment region at a plurality of times, and generating a power utilization
demand analysis result of the target investment region; calculating the installation cost of each photovoltaic planning
layout configuration scheme, and generating
layout cost evaluation data of each photovoltaic planning
layout configuration scheme; predicting the power generation capacity of each photovoltaic planning layout configuration scheme, evaluating the influence of
photovoltaic power generation on a surrounding ecological
system, and generating environmental influence evaluation information of each photovoltaic planning layout configuration scheme; and calculating the operation cost, evaluating the investment income and fund
recovery cycle of each photovoltaic configuration scheme in combination with the
electricity market price and the government subsidy information, and generating investment decision data of the target investment area. The method optimizes the operation and energy structure of a
power grid, enables the planning of a
photovoltaic system to meet the actual demands, guarantees the environmental
sustainability of a project, provides all-around investment decision support for a
decision maker, and enhances the economic and environmental benefits of the project.