摘要
该文在熟悉KNT-PGK3型高级过程控制实验装置的基础上,研究了基于超声波传感器的水箱液位控制。在现有实验设备与软件环境下,分别采用PID控制与模糊控制方法对实验台的水箱液位进行控制研究。实验过程中,先进行厂家参数PID控制实验,观察分析控制效果,再结合实际的控制效果,优化调整PID参数,并将优化后的PID控制应用到液位控制实验中。通过分析实验结果找出不足,提出了模糊控制方法并设计了模糊控制器,再进行实验验证。由3种实验结果可知,优化参数PID控制改善了系统的动态性能与稳态性能,模糊控制方法取得了更好的控制效果。
The tank liquid level was controlled for KNT- PGK3 advanced process control device based on ultrasonic sensor. The method that PID control and fuzzy control were used respectively to control tank liquid level on the existing experiment equipment and software environment. During the experiment,first of all,the parameters PID of manufacturer control experiment was done and observation and analysis control effect,according to the actual control results,the PID control parameters was optimized,and the optimized result is applied to control the liquid level. By analysis experimental results to find the shortages,fuzzy control method was put forward and a fuzzy controller was designed,and then experimental verification work was done. The three experimental results show that the parameters optimized PID control improves the dynamic performance and steady- state performance,and the fuzzy control methods obtain better control effect.
出处
《工业仪表与自动化装置》
2016年第4期71-74,共4页
Industrial Instrumentation & Automation
基金
甘肃省自然科学基金项目(1308RJZA116)
甘肃省高等学校科研项目(2013A-051)
兰州交通大学科技支撑计划项目(ZC2013004)
关键词
超声波传感器
PID控制
模糊控制
参数优化
实验研究
ultrasonic sensor
PID control
fuzzy control
parameter adjustment
experimental study
