摘要
对于多变量耦合且存在时变性的焦炉集气管压力系统,提出了一种非线性PID的控制方法。采用对角阵解耦方法来进行解耦控制,对于解耦后的单输入单输出系统采用非线性PID控制算法,设置不同的PID调节参数,来应对不同的操作工况,使系统快速脱离高压或低压等不稳定状态。仿真结果表明,该控制策略不仅解决了焦炉集气管压力系统之间的耦合问题,也提高了系统对复杂多变的工况的适应性和鲁棒性,可以保证焦炉集气管压力稳定在现场工艺要求的范围内。
A nonlinear PID control method is proposed for a multivariable coupling and time-varing pressure system for coke oven gas collector. The diagonal matrix decoupling method is adopted to decouple control, and the nonlinear PID control algorithm is adopted to decouple the single input and single output sys- tem. Setting different PID adjustment parameters helps in coping with different operating conditions, making system out of high pressure or low pressure and other unstable state quickly. Simulation results show that this control strategy has not only addressed the coupling problems in the pressure system of coke oven gas collector, but also improved adaptability and robustness of the system to complex conditions, which can guarantee that the collector pressure will remain stable within the the scope set by the technological requriements.
出处
《常州工学院学报》
2016年第5期39-43,共5页
Journal of Changzhou Institute of Technology
关键词
集气管压力
非线性PID
解耦
gas collector pressure
nonlinear PID
decoupling
