Research And Application Of Advanced Adiabatic Compressed Air Energy Storage On Modern Energy Power System

In view of the need of modern energy power system to provide more flexibility under the high proportion of renewable energy sustainable consumption,advanced adiabatic compressed air energy storage(AA-CAES)is one of the most attractive physical energy storage fashion because of its superior flexibilities,including conventional flexibility with power reserve capability,production flexibility regarding multi-carrier storage and flexible capacity in transmission network.This paper aims to exploit all those kinds of flexibility offered by AA-CAES and provides associated design,modeling and operation methods for the applications of new energy power system,integrated energy system and transmission network at the source side,load,and network,respectively.Combined with the existing off-design models of some components to explore the effects of external off-design operation requirements on the part-load behavior of internal components,we propose a general off-design thermodynamic simulation model of AA-CAES incorporated with the part-load characteristics of heat exchangers,and validate the effectiveness of the proposed model on a practical AA-CAES demonstration pilot.This will provide the insights for the modeling of corresponding AA-CAES realizations at the source,network,and load side.To exploit the conventional power reserve capability,we consider the regular application of AA-CAES as an energy storage fashion in power grids.Based on the offdesign thermodynamic simulation model proposed in chapter 2,we focuse on the internal part-load characteristics of AA-CAES and propose the modeling and operation methods with the consideration of dynamic characteristics of its part-load and operation constraints,which provides a modeling method for the application of AA-CAES in modern energy power system modeling and scheduling operation in the form of energy storage fashion.In order to exploit the multi-carrier storage and poly-generation flexibility,we investigate the application of AA-CAES as a flexible load form in the integrated heat-power systems.In this paper,both the heat exchanger and AA-CAES in the integrated heat-power systems are modeled in detail,and the relationship among the heat transport process with the internal and external characteristics of AA-CAES are analyzed.Then we establish the dispatching model of the integrated heat-power systems with AA-CAES.It is pointed out that AA-CAES plays an important role in improving the regulation capacity of the ntegrated heat-power systems and the potential ability to promote the wind power consumption.This provid a guidance for the dispatching and control operation of the integrated heat-power systems at load side with AA-CAES.To exploit the flexible regulating capacity of AA-CAES in the transmission network,we begin with the development of a “backbone” reduction scheme of large power grids based on power transfer distribution factors(PTDFs).Based on the simplified network,we propose an evolutionary production simulation model with AA-CAES,which represents storage components and demand side management(DSM)to some accuracy.Results show that AA-CAES can provide flexible capacity and heat energy to meet the heating demand.It provides a basic mathematical method for the application of AA-CAES in power system flexibility optimization planning and evolution.In summary,this paper analyzes the application of AA-CAES in modern energy power system,builds a thermodynamic simulation model for the general-purpose realization of AA-CAES to consider its off-design operation and internal part-load feature,and exploit the potential flexibilities offered by AA-CAES in three aspects.Including using an energy storage cooperated with wind farm to smooth the fluctuation of renewable energy,using multi-carrier storage and poly-generation flexibility to support the coordinated regulation and control of integrated heat-power systems,and providing the flexible regulation capacity to delay the expansion of transmission lines in the power grid.This paper studies the modeling and the dispatching operation of typical application of AA-CAES at the source side,load and network,respectively.That provides a new solution for the realization of sustainable high proportion of renewable energy and finally benefits the renewable consumption of power systems.