运行模式对联合循环机组一次调频性能的影响分析  

Analysis of Influence of Operation Mode on Primary Frequency Regulation Performance of Gas-Steam Combined Cycle Unit

作　　者：杨彦平 傅子隽 党少佳 贾斌[1] 戴义平[2] YANG Yan-ping;FU Zi-juan;DANG Shao-jia;JIA Bin;DAI Yi-ping(Inner Mongolia Power Research Institute,Hohhot 010020,China;School of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China)

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020 [2]西安交通大学能源与动力工程学院,西安710049

出　　处：《汽轮机技术》2023年第6期426-430,437,共6页Turbine Technology

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,给出了投入汽轮机调频功能后机组的改进模型,通过实测数据验证了模型的准确性。采用仿真方法,分析了两组扰动作用下不同运行模式时机组的动态特性,结果表明,汽轮机参与调频时,燃机输出功率并无变化,而汽轮机输出功率增加了理论输出变化量的42%左右,可以改善机组一次调频的能力。所做工作对改善联合循环机组的调频性能和负荷稳定性具有一定的参考价值。In this research,a gas-steam combined cycle unit is taken as the object,the mathematical model of the unit and its system is established,and the improved model after putting into thesteam turbine regulation function is given.It verifies the accuracy of the model through the measured data.The simulation method is used to analyze the dynamic characteristics of the unit under two groups of disturbance and different operation modes.The results show that the gas turbine output power does not change,and the steam turbine output power increases about 42% of the theoretical output variation,respectively,under the operation mode in which the steam turbine participates in the regulation,which can improve the primary frequency regulation capability of the unit.This work has a certain reference value for improving the frequency regulation performance and load stability of the combined cycle unit.

关 键 词：燃气轮机 联合循环机组 控制系统 数学模型 一次调频 

分 类 号：TM611.3[电气工程—电力系统及自动化]