壓縮空氣蓄能（CAES）電站熱力性能仿真分析.pdf

1、The grid volume is developing fast．The most difference between peak and off-peak demand of power generation is about 40％．Its performance is dependent on energy storage system because of the load fluctuation．Some problems

2、 can be solved by electrical energy storage system，for example，the improvement of reliability and steadiness of power supply．Each of energy storage ways has advantages and disadvantages．Compressed air energy storage (CAE

3、S)has advantages of low investment，low operation＆maintenance cost and large power load range．Acknowledging the support from Natural Science Foundation of Beijing(No．3053019)&National Natural Science Foundation of China(N

4、o．50476069)，thermal performance simulation＆benefits analysis of CAES was studied in thesis．Main contents and results of the thesis are as follows． Combined with the characteristic of energy storage subsystem and its comp

5、onents，a subsystem dynamic-state and static-state simulation model is proposed based on unit’S modeling system．Equipments selection and their dynamic characteristics are analyzed．Using simulation software，the dynamic—sta

6、te and static-state thermal performance are simulated for an energy storage subsystem．The simulation diagram of curve is plotted．The conclusion is drawn as follows：with the storage of compressed air,the pressure of stora

7、ge vessel is varied from 30bar grows to 144bar,the mass flux of compressing air is reduced to 403．7kg／s from 411．2kg／s，the work usage of compressing air is reach to 706kJ／kg from 412．8kJ／kg． Linked with the flow structur

8、e and dynamic characteristic of making electricity subsystem and its components，a dynamic-state and static-state simulation model of making electricity subsystem is proposed．Dynamic—state and static—state thermal perform

9、ance have been simulated with constant air mass flux and constant gas combustion temperature．Some simulation diagrams of curve are plotted also．The contrastion of varied operation mode thermal performance is made between

10、 CAES power plant and simple gas turbine power plant．The conclusion is drawn as follows：with the load variation of gas turbine from 100％to 40％，the thermal efficiency of gas turbogenerator is varied from 33．8％to 0，the ene

11、rgy transformation coefficient of CAES power plant is changed from 53．6％～49．5％with constant gas temperature＆changed from 53．6％～34．3％with constant mass flux．On the basis of“Energy Step Utilization”principle and laying emp

12、hasis on The grid volume is developing fast．The most difference between peak and off-peak demand of power generation is about 40％．Its performance is dependent on energy storage system because of the load fluctuation．Some

13、 problems can be solved by electrical energy storage system，for example，the improvement of reliability and steadiness of power supply．Each of energy storage ways The grid volume is developing fast．The most difference bet

14、ween peak and off-peak demand of power generation is about 40％．Its performance is dependent on energy storage system because of the load fluctuation．Some problems can be solved by electrical energy storage system，for exa

15、mple，the improvement of reliability and steadiness of power supply．Each of energy storage ways has advantages and disadvantages．Compressed air energy storage (CAES)has advantages of low investment，low operation＆maintenan

16、ce cost and large power load range．Acknowledging the support from Natural Science Foundation of Beijing(No．3053019)&National Natural Science Foundation of China(No．50476069)，thermal performance simulation＆benefits analys