Modeling And Simulation Of 2MW Multi-Energy Complementary Power Generation System

Environmental pollution and energy shortages have led to the rapid development of the use of renewable energy and clean energy.The multi-energy complementary distributed energy system has become one of the research hotspots.In this paper,the 2MW multi-energy complementary power generation system is studied,and its dynamic characteristics are studied,which is helpful for understanding the multi-energy complementary operation mode and control strategy.Based on the collection and reading of the literature,this paper has a deep understanding of the application and development of renewable energy,clean energy and energy storage in China.For renewable energy power generation systems such as solar energy and wind energy,there are random factors on both the power generation side and the user side.In order to enable the research object to stabilize the random factors on the power generation side and the user side,this paper selects the multi-energy complementary combined power generation system based on steam turbine power generation and gas turbine power generation and Compressed Air Energy Storage(CAES).Starting from the requirements of dynamic modeling,the system is jointly planned,the unit output under rated conditions is determined,and the cascade utilization process of energy in the combined system is analyzed.Then,the thermodynamic calculations are performed on each subsystem to obtain the design parameters of the system.Modeling and simulation provides a theoretical basis;the operating mode of the combined unit is analyzed.On the basis of thermal design,the whole energy system is divided into three subsystems: steam turbine generator set,gas turbine generator set and CAES.The subsystem is subdivided into several units,and the simulation model of the object is established by using Apros.The steady state simulation is performed on each subsystem,and the design parameters and simulation data are compared to confirm the rationality of the model.Simulation experiments such as load disturbance and temperature disturbance are applied to each power generation subsystem by simulation model,which further proves that the model can reflect the operation process of the thermodynamic system.The dynamic simulation test of the joint system was carried out to verify the feasibility of power generation stability and operation mode of the multi-energy complementary system,which laid a foundation for further optimization of the control system.