摘要
双容水箱是工业控制常见的控制对象,其液位控制为一个典型的二阶时滞系统,且系统参数具有时变特点,容易受外界自来水压力频繁波动对其控制系统造成影响,常规控制算法难以实现对其控制。本研究分析了二阶自平衡水箱液位控制的基本原理,得出其传递函数,引入遗传算法变异功能,提出改进型模拟退火算法,再结合PID控制器对其液位进行调节,并在Matlab-Simulink仿真软件进行仿真,仿真结果表明:在改进型模拟退火算法结合PID控制下,其系统快速稳定,系统调节时间小于55s,超调量小于2%;因此本次研究中采用的改进型SA-PID算法具有较好的实用性,能够在常规工业控制进行推广。
Dual vessel water tank is controlled member in industrial control, and its level control is a common liquid a typical two-stage time delay system, and the parameters of control system always change over time. The control system is influenced by the frequent fluctuations of the tap water pressure, and it can be difficulty controlled by the conventional control algorithm difficulty. The principle of dual vessel water tank has been analyzed, and its mathematic model has been developed. Next, the improved simulated annealing algorithm contacted with PID control has been adopted to control the liquid level. Then this control system has simulated based on MATLABsimulation software. The simulation results show that： under this control algorithm, the control system is stable, and the accommodation time is less than 55s, and the overshoot is less than 2% either. Hence, the improved SA-PID algorithm proposed by this study has a good practicability, and it can be generalized to other industrial controls.
出处
《机械设计与制造》
北大核心
2015年第8期50-52,56,共4页
Machinery Design & Manufacture
