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根据压水堆蒸汽发生器的简化数学模型,将一种模糊控制器的系统化设计方法用于蒸汽发生器水位的控制。该方法将模糊控制器的设计分解为各个独立子系统的线性最优控制器(LQR)的设计,不仅大大简化了模糊控制器的设计,而且能够保证模糊控制系统的渐进稳定性。在快速加负荷和突然甩负荷的仿真实验中,该方法的控制效果在超调和反应速度方面明显优于已有的分层模糊自适应控制,验证了该方法的有效性。
According to the simplified mathematical model of PWR steam generator, a systematic design method of fuzzy controller is applied to the control of steam generator water level. The method decomposes the design of the fuzzy controller into the design of the linear optimal controller (LQR) of each independent subsystem, which not only greatly simplifies the design of the fuzzy controller but also ensures the gradual stability of the fuzzy control system. In the simulation of fast loading and sudden load rejection, the control effect of this method is obviously superior to the existing stratified fuzzy adaptive control in overshoot and reaction speed, which verifies the effectiveness of the proposed method.