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游离水脱除器的界面高度和压力这两个参数目前基本上是采取ＰＩＤ给定点控制方式，在实际应用中，由于干扰变化频繁及多变量系统等因素，这种控制方式效果并不理想，必须从控制方案上加以改进。可以采用多变量状态反馈单值预测控制算法，其基本思想是利用模型来预测未来的输出和相应的偏差，求得最优控制。首先设定游离水脱除器的假设，选取其中的变量建立数学模型，在此基础上简化模型及参数设定，再根据模型进行仿真并得到仿真曲线。
Free water remover interface height and pressure of these two parameters is basically taken to PID given point control mode, in practical applications, due to frequent interference and multivariable systems and other factors, this control effect is not satisfactory, Must be improved from the control program. Multivariable state feedback single-valued predictive control algorithm can be used, the basic idea is to use the model to predict the future output and the corresponding deviation, to obtain the optimal control. Firstly, the hypothesis of free water remover is set, the variables are selected to establish the mathematical model, on this basis, the model and parameter setting are simplified, and then the simulation is carried out according to the model and the simulation curve is obtained.