基于GPC的PID自适应控制器在空调系统中的仿真研究

由于HVAC系统具有大时滞、强扰动、被控对象参数未知或是时变的特点,对其实施常规PID控制往往效果欠佳。本文介绍了一种基于广义预测控制思想的自适应PID控制器,能够较好的适应这些特征。并利用MATLAB对控制系统进行了仿真,与常规的PID控制进行比较,发现其能够处理大范围变化的运行工况,并且能够达到好的控制效果。

Simulation of Adaptive PID Controller Based on GPC in the Air-conditioning System

The features of high time delay, interference and unknowable parameters of system controlled or time variation in the air-conditioning system make it difficult to carry out a traditional PID control on those systems. This paper presents an adaptive PIDcontroller based on generalized predictive control method to better adapt to these features. Furthermore, we utilize MATLAB simulation of control system compared with traditional P1D control to find an operation condition that can solve variation in a long range. It can achieve a satisfying result.