直流蒸汽发生器分区域比例积分微分给水控制系统研究

摘要

直流蒸汽发生器(OTSG)对给水控制的要求较高。在常规比例-积分-微分(PID)控制系统的基础上,引入分区域控制方法,并结合三冲量控制方法,设计三冲量分区域 PID 给水控制系统。仿真结果表明,在负荷扰动时,OTSG 在该控制系统作用下超调量更小,稳定时间更短,控制性能得到了提高,具有一定的工程应用价值。%The control level of once-through steam generator (OTSG)is high. On the basis of normal proportional-integral-differential (PID)controller,a regional control theory is introduced,combined with three-parameter control system,then a three-parameter regional PID feedwater control system is designed. Simulation result indicates that the output value of this control system is smaller,and the settling time is shorter in the load disturbance. It shows that this control system can improve the control capability to OTSG,and is valuable for engineering application.