The operating characteristics research of integrated energy system based on the wind,coal-fired power plant and compressed air energy storage
In order to improve the penetration rate of wind power and the operation flexibility of coal fired units,Based on the characteristics of large capacity and multi-energy flow coupling of compressed air energy storage system,this paper proposes a wind power-thermal power-compressed air energy storage integrated energy system including two 600 MW coal-fired units.Firstly,the influence of key parameters on the performance of the compressed air energy storage system was analyzed by establishing the thermodynamic model of the system,and then the energy flow matching and operation characteristics of the integrated energy system were explored with the minimum wind abandonment rate as the goal in a typical day.The results show that the output thermo-electric ratio of the energy storage system decreases from 0.84 to 0.30 with the energy distribution ratio increases from 57.3%to 76.0%,which has the most significant influence on the output of the energy storage system.Under the simulation scenario of a typical day,the integrated energy system has strong load regulation ability and good energy flow matching,and the wind power abandonment rate is only 2.28%.Through the above analysis,it is verified that the proposed system has considerable wind power consumption potential and operational flexibility.
compressed air energy storagecombined heat and power supplyoperation charactersoff-design characters