300MW重型燃气轮机数学建模与动态仿真  

Mathematical Modeling and Dynamic Simulation Study Based on 300MW Heavy-Duty Gas Turbine

作　　者：乔红[1] 曹越[1] 戴义平[1] 

机构地区：[1]西安交通大学叶轮机械研究所,西安710049

出　　处：《燃气轮机技术》2016年第2期28-33,共6页Gas Turbine Technology

摘　　要：采用模块化建模的方法,推导建立了考虑压气机级间抽气和透平级内进气的新一代F级300 MW重型燃气轮机及其控制系统的数学模型。在Matlab/Simulink平台对该系统的动态响应特性进行了仿真研究。结果表明,所建立的数学模型能够准确地实现机组变负荷过程控制,所采用的控制系统有较好的稳定性,并能够满足安全性要求,同时随着燃烧室时间常数的减小,其对系统动态性能的影响也在减小,烟气热惯性的影响不可忽略。A new generation 300 MW class heavy-duty gas turbine model and its control systemare developed using the modularmodelingmethod,taking the compressed air extracting between compressor＇s stages and cooling air of turbine＇s each stage into account. The dynamic performance of this system was studied using Matlab / Simulink. The results show thatthe heavy-duty gas turbine dynamic model feasible for the analysis of the dynamic performances of loadascension and the load rejection. The adopted control system meets the stability and safety requirements. The impact of combustion chamber gas heat inertia on dynamic performance decreases,with the time constant τccdecreases. The time constant τcccan＇t be ignored in the model of 300 MW heavy duty gas turbine.

关 键 词：重型燃气轮机 动态仿真 控制系统 热惯性 

分 类 号：TK472[动力工程及工程热物理—动力机械及工程]