模糊PID在水箱过程控制系统中的研究  

Research on Fuzzy PID in Water Tank Process Control System

作　　者：张燕[1] 

机构地区：[1]包头轻工职业技术学院自动化学院,包头110142

出　　处：《内燃机与配件》2017年第17期140-141,共2页Internal Combustion Engine & Parts

基　　金：内蒙古自治区高等学校科学研究项目研究成果;项目编号为NJZC16477

摘　　要：常规PID控制器被广泛用于过程控制系统中,但针对工业控制系统中的大时滞、非线性的复杂系统其PID参数较难整定,很难达到预期的控制效果。本文建立了水箱液位系统的数学模型,采用液位一液位串级控制方案,设计了模糊控制器,计算出相应的模糊控制表。使用仿真软件对此串级控制方案进行仿真,分析比较了传统控制和模糊控制的性能,仿真结果表明模糊在动态性能、抗干扰性以及鲁棒性方面都较好。The conventional PID controller is widely used in process control systems, but it is difficult to control the PID parameters for complex systems with large time-delay and nonlinearity in industrial control systems, and it is difficult to achieve the desired control results.In this paper, the mathematical model of tank water level system is established. The cascade control scheme of liquid level and liquid level is adopted. A fuzzy controller is designed and the corresponding fuzzy control table is worked out. Simulation software is used to simulate the cascade control scheme, and the performance of traditional control and fuzzy control is analyzed and compared. The simulation results show that fuzzy is better in dynamic performance, anti-interference and robustness.

关 键 词：PID 模糊控制器 串级控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]