摘要
以某燃气蒸汽联合循环机组为对象,建立了机组及其系统的数学模型,提出了联合循环机组蒸汽动力部分的改进模型,并且通过实测数据验证了模型的准确性。改进模型细化了蒸汽动力循环部件的运动方程,提升了机组动态响应的速度和精度。机组模型可以满足电网一次调频要求;受到扰动时,联合循环机组因热惯性较大,需要较长时间才能达到稳定的功率输出。相关结果为联合循环机组的调频性能和负荷稳定性的研究提供了参考。
A mathematical model of a gas-steam combined cycle unit and its system was established. An improved model of the steam power part of the combined cycle unit was proposed. The accuracy of the model was verified by the measured data. The improved model refines the motion equation of the steam power cycle components, and improves the speed and accuracy of the unit dynamic response. The unit model can meet the requirements of primary frequency regulation of the power grid. The combined cycle unit takes a long time to achieve stable power output due to large thermal inertia when disturbed. The results provide a reference for the study of frequency regulation performance and load stability of the combined cycle unit.
作者
党少佳
傅子隽
杨彦平
贾斌
戴义平
Dang Shaojia;Fu Zijun;Yang Yanping;Jia Bin;Dai Yiping(Inner Mongolia Electric Power Science and Research Institute,Hohhot 010020,China;School of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《发电设备》
2023年第6期392-398,共7页
Power Equipment
基金
国家重大专项(J2019-V-0014-0109)。
关键词
燃气轮机
联合循环机组
数学模型
一次调频
gas turbine
combined cycle unit
mathematical model
primary frequency regulation
