Research On Scheduling Model Of Multi-energy System Based On CVaR And Stochastic Optimization

With the rapid development of economy,the shortage of energy reserves and environmental problems are becoming more and more serious.The proportion of renewable energy due to its environmental protection and efficiency is gradually increasing.Based on this background,this paper transforms the traditional multi-energy system and constructs a flexible operation mode of multi-energy system:On system infrastructure to join the hot cold storage equipment,storage and system running cost and the cost of carbon dioxide emissions both into the target of minimizing the total cost considering demand response,energy balance constraints,more flexible,energy efficiency and other conditions on the energy system optimization scheduling is a low-carbon economy.and the effects of cold and hot electricity three energy coupling.At the same time,CVaR risk control is introduced into the field of power optimization dispatching,which is optimized together with the expected total cost through a linear combination to prevent and avoid the uncertain risks in the multi-energy system.And based on analyzing the defects in traditional clustering methods,proposes a new clustering method,the fuzzy c-means clustering comprehensive quality standard(FCM-CCQ),scene clustering analysis was carried out on the wind power photovoltaic output data at the same time as the selection of cluster number for reasonable interpretation,improve the deficiency of the traditional clustering methods,the optimal operation model is more rigorous.At the same time,in order to verify the model feasibility,this paper set up a more traditional energy system operation mode.running mode and flexible decoupling operation mode,comparing the three different patterns using stochastic optimization method for solving,to explore the three energy decoupling for cold and hot electricity system brings economic benefits and environmental benefits,Based on the real multi-energy system background,a simulation case study is carried out on the low-carbon economy scheduling model.The example analysis shows that the total economic cost and carbon dioxide emissions of the multi-energy system are reduced successively under the three modes of traditional operation mode,semi-reformed operation mode and flexible decoupling operation mode.The results are analyzed in detail from the perspectives of economy,energy efficiency,environment and flexibility.It is proved that the flexible multi-energy system reduces the operating cost of the system,enhances the economy,environmental protection and flexibility of the system operation.