A Hybrid Interval Optimization Method for Urban Integrated Energy System Operation

With the increasing proportion of renewable energy sources, the operation of urban integrated energy system faces significant uncertainty. To promote the high proportion of renewable energy sources in urban integrated energy system, this paper proposes a hybrid interval optimization method, realizing flexible resources cooperative optimization under multiple uncertainties. Firstly, the dispatch model of user-side flexible resources is constructed considering aggregation feature. Then, the range of interactive power between urban distribution network and superior power grid is optimized considering building parameters, renewable energy sources and load uncertainties. Finally, the test results show that the proposed hybrid interval optimization method can avoid short-term violent fluctuations of interactive power on the premise of meeting the requirements of system scheduling, and provide reference for optimal operation of superior power grid.