Economic Dispatch Model of High Proportional New Energy Grid-Connected Consumption Considering Source Load Uncertainty

To solve the problem regarding large-scale grid-connected consumption of a high proportion new energy sources, concentrating solar power (CSP)-photovoltaic (PV)-wind day-ahead and intraday-coordinated optimal dispatching method considering source load uncertainty is proposed. First, wind output prediction described by multi-scenario stochastic planning method, intraday source-load characterized trapezoidal fuzzy number equivalence model. Second, based on combined scenario set prediction, dispatch performed combining thermal CSP plants, plant dataset are used as input quantities for dispatch. Thus, scheduling rotating backup plan plants were determined; finally, validity feasibility model verified using arithmetic examples.