Research Of Reliability Analysis And Wind Power Accommodation In Energy Internet

With the extensive deepening of energy overall situation,as an important material basis,energy impacts socio-economic development and progress.In the traditional energy structure,the production,transmission and use of different types of energy is in a state of mutual independence,which can no longer promote economic and social sustainable development.But with the electrification process accelerated,different energy sources can be transformed by physical equipment,so as to enhance the mobility of energy and increase the utilization efficiency.Energy networks form a coupling relationship which takes power energy as the center.This relationship has put forward higher requirements to the energy dispatching and planning,and the Energy Internet has attracted more and more attention as a kind of new energy utilization under this background.As the physical layer of Energy Internet,integrated energy system is an important material basis of the construction of Energy Internet.Through the coordination of a variety of centralized and distributed energy supply,realize the multi-energy source complementation of source,network,charge and storage,and improve the comprehensive utilization efficiency of energy.And with the increase of energy loads,how to evaluate the reliability of energy network within the integrated energy system and effectively coordinate the utilization of different types of energy is the key to ensure the energy flow and improve the energy efficiency.For this purpose,this paper mainly aiming at the problems in integrated energy system: firstly,this paper described the current situation and trend of urban energy,and introduced the basic structure of the integrated energy system,and summarized energy switching models of the key physical equipment.Secondly,taking electric vehicles as the connecting points,this paper proposed a method which can evaluate the integrated reliability of urban road network and distribution network,established an evaluation model and verified by actual examples.Finally,in order to solve the problem of large wind curtailment caused by the specific operation mechanism of CHP system,this paper put forward a kind of optimal dispatching model of wind power consumption,and improved the rigid relationship between heat network and power grid through adjusting the output of CHP units,so as to reduce wind curtailment and improve energy utilization efficiency.