基于时域的PID模型预测控制算法改进及仿真

Improved PID Model Predictive Control Algorithm and Its Simulation Based on Time Domain

在分析模型算法控制(MAC)算法和PID算法的基础上,针对两种算法的不足,结合两种算法的优点,推导了基于PID性能指标的改进的MAC控制算法PIDMAC算法。这种算法既具有PID算法的优点,结构简单,参数调节方便,又具有预测功能。通过仿真研究的对比,在时域内分析了PIDMAC控制器的参数选择对系统控制性能的影响,说明了PIDMAC算法比基本MAC算法具有更好的控制性能,为工程应用打下较好的理论基础。

On the base of analysis of model algorithmic control （MAC） and PID algorithm, an improved MAC algorithm, PIDMAC is given based on PID performance index. Combined the virtues of the two algorithms, the algorithm is of the advantages of PID algorithm, which is simple in structure, reliable in operation and robust in performance, and of the predictive function. Compared the simulative researches, the influence of PIDMAC controller parameter tuning on system performance is analyzed in time domain. PIDMAC algorithm has better performance than conventional MAC algorithm in simulative research and analysis, and grounds well for engineering application.