CAJ | 학술논문

主要介绍了火电厂一次调频模型中的数字电液系统( DEH)、协调控制系统。在Matlab/Simulink中建模,采用以锅炉跟随汽轮机方式下的协调控制系统,模拟了网侧负荷突然增加时,火电厂一次调频动作,减缓频率变化的情况。仿真结果表明,汽轮机调门在一次调频的响应时间限制内动作,汽门开度动作后,机械功率随之增加,经过5 s,转速和电磁功率趋于稳定。一次调频结果满足了负荷对频率的需求,验证了仿真模型,并为后续研究作辅垫。
주요개소료화전엄일차조빈모형중적수자전액계통( DEH)、협조공제계통。재Matlab/Simulink중건모,채용이과로근수기륜궤방식하적협조공제계통,모의료망측부하돌연증가시,화전엄일차조빈동작,감완빈솔변화적정황。방진결과표명,기륜궤조문재일차조빈적향응시간한제내동작,기문개도동작후,궤계공솔수지증가,경과5 s,전속화전자공솔추우은정。일차조빈결과만족료부하대빈솔적수구,험증료방진모형,병위후속연구작보점。
This paper mainly introduces the digital electro-hydraulic ( DEH) system and coordinated control sys-tem in primary frequency control of thermal power plant. By modeling the coordinated control system under boiler following turbine mode in Matlab/simulink, the frequency changes of primary frequency regulation are simulated when grid side load increases suddenly. The simulation results show that generator mechanical power will increase after steam turbine valve responses within the time limit and the steam valve opens in primary frequency regulation. And in 5 seconds, rotating speed and electromagnetic power tend to be stable. The results of this primary frequency regulation simulation study meet the needs of the load to the frequency, verify the accuracy of simulation model, and foreshadow for follow-up study.