對于pH 中和過程的控制，由于其本身具有嚴重的非線性特性，因而對于此過程的控制十分困難。鑒于此，本文提出了Hammerstein 系統非線性預測控制方法，并應用仿真和試驗的方法分別實現了對pH 中和非線性過程的控制。研究結果表明，Hammerstein 模型非線性預測控制具有良好的控制效果和很強的穩定性，且優于常用的PID 控制方法。
關鍵詞：Hammerstein 模型；非線性控制；預測控制；pH 中和；仿真；試驗
Abstract: The control of pH neutralization process, having highly nonlinear nature, can be very difficult to achieve. In this paper, a predictive control strategy based on the Hammerstein model is put forward, which is known as Nonlinear Predictive Control of Hammerstein models, and achieved control of pH neutralization process. Simulation and test study for a pH neutralization process indicate that predictive control based on Hammerstein models can provide much better control performance than well-tuned PID controllers.
key words: Hammerstein Models; Nonlinear Control; Predictive Control; pH Neutralization Process; Simulation; Test