This application provides a medium- to long-term power
system planning method that considers the flexible production mode of
nuclear power. The method includes constructing a
system operation model with multiple power source categories based on resource data and power parameters, and constructing a
capacity planning model with the objective of minimizing the annualized comprehensive cost of the
system, combined with first-cost data. Constraints include
nuclear power flexibility operation constraints, power supply and demand balance constraints, system reserve constraints, installed capacity constraints, cross-sectional constraints, carbon emission constraints, and
energy storage operation constraints. Based on the
nuclear power flexibility operation constraints and output data, the system
operation model is used to perform production
simulation to obtain load forecast data and second-cost data. Based on the load forecast data and second-cost data, the
capacity planning model is solved to obtain the power system planning scheme. This method simultaneously considers economic efficiency, low carbon emissions, and flexible regulation capabilities, achieving multi-objective collaborative planning and providing scientific support for the optimization of the power
source structure of new power systems.