Power and Energy Balance Method for Power System Based on Refined Simulation
In order to solve the difficulties in ensuring supply,balance and reasonable utilization of renewable energy in a power system with a high proportion of the renewable energy,considering the characteristics of the renewable energy and the differences in multi-type flexible adjustable resource characteristics,the paper proposes a refined time series simulation model and probabilistic power and energy balance method with the consideration of the flexible interaction of source-grid-load-storage,establishes a complete calculation framework for the renewable energy integration,and analyzes the main factors affecting the renewable energy integration capabilities.Taking the planning system of a major province with renewable energy power generation in 2025 as an example to verify the method,accurate data for a variety of operating scenarios are obtained,balance indicators are effectively calculated such as renewable energy abandoned electricity and power demand,and some suggestions are provided for power system planning and construction.
randomizationoperation simulationelectric power and energy balancerenewable energy integration