基于状态空间的燃气轮机建模与控制优化

发布时间：2018-06-27 21:31

本文选题：现代控制 + 状态空间　；参考：《热能动力工程》2016年02期

【摘要】：针对传统PID控制法只能调节单变量且控制效率慢的问题,利用状态空间方法可以调节多个变量的特点。以某电站的燃气轮机为研究对象,考虑实际运行中燃气轮机执行机构和传感器的特性,建立了燃气轮机状态空间控制法的仿真模型,并借鉴极点配置思想对传统控制策略进行优化;运用所建立的燃机控制模型和优化后的控制策略对燃气轮机升负荷过程进行了控制模拟,结果显示:在系统升负荷的过程中,燃料阀门响应的时间从35 s缩短到5 s左右。相应的燃料量、排烟温度和燃机功率的响应时间也由40 s缩短到10 s以内。优化后的燃机相对转速振荡时间也由40 s缩短到20 s。
[Abstract]:Aiming at the problem that the traditional pid control method can only adjust the single variable and the control efficiency is slow, the state space method can be used to adjust the characteristics of multiple variables. Taking the gas turbine of a power station as the research object and considering the characteristics of the gas turbine actuators and sensors in actual operation, the simulation model of the state space control method of the gas turbine is established. The traditional control strategy is optimized by using the idea of pole assignment, and the control simulation of the gas turbine rising load process is carried out by using the established gas turbine control model and the optimized control strategy. The results show that: in the process of increasing the load of the system, The response time of the fuel valve was shortened from 35 s to about 5 s. The corresponding fuel quantity, exhaust gas temperature and the response time of the power of the gas turbine are also shortened from 40 s to less than 10 s. The relative speed oscillation time of the optimized gas turbine is also shortened from 40 s to 20 s.
【作者单位】：上海交通大学机械与动力工程学院;
【分类号】：TK473

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