摘要
大型燃煤锅炉的再热汽温是机组安全和经济运行的重要过程参数。针对电厂再热汽温对象大惯性、大时滞的特点,提出基于输出预测的PID控制算法和D步超前预测算法进行预测控制。以600 MW亚临界燃煤机组再热汽温控制为研究对象,仿真结果表明预测控制技术可以克服大迟延对控制系统的影响,有效改善系统的控制品质,提高鲁棒性。
The reheat steam temperature is an important parameter for the safe and economic operation of large coal-fired boilers.Aiming at the characteristics of large inertia and time delay of reheating steam temperature object in power plants,PID control algorithm based on output prediction and D step forward prediction algorithm are proposed for predictive control.Simulation results show that the predictive control technology can overcome the influence of large delay on the control system,effectively improve the control quality and enhance the robustness.
作者
杨硕
高星宇
甄伟静
武晓华
YANG Shuo;GAO Xingyu;ZHEN Weijing;WU Xiaohua(Zhanjiang Zhongyue Energy Co.,Ltd.,Zhanjiang 524099,China;Hebei Engineering Research Center of Simulation &Optimized Control for Power Generation (North China Electric Power University ),Baoding 071003,China)
出处
《山东电力技术》
2018年第12期50-54,共5页
Shandong Electric Power
基金
河北省自然科学基金(E2018502111)
关键词
再热汽温
输出预测
PID控制
D步超前预测
reheat temperature
output prediction
PID control
D-step advance prediction
