摘要
针对含铜废水处理pH值控制过程存在时变、非线性及各变量强耦合的特性,在分析被控对象特性的基础上,设计了以分段式变增益PID控制器为核心的含铜废水pH值控制系统,详细介绍了系统主要的硬件结构图和软件框图。提出了一种新颖的管道恒压实现变量解耦的控制方法,解决了控制系统多变量耦合难题。系统运行结果证明,该控制系统性能稳定可靠,能快速准确的达到废水pH值控制要求,且易于实现和推广。
According to the characteristics of nonlinear time-varying and strong variables-coupling in the pH control process of waste-water with copper-contained treatment ,on the base of analyzing the controlled object＇s characteristics, sectional-form changeable-gain PID controller was designed in the pH value control system of copper-contained waste-water. The main hardware structural drawing and software diagram of the system was introduced in detail. A novel control method of variables-decoupling using constant tubing pressure to solve the problem of strong variables-coupling was pro- posed. The system operation results show ：the control system＇s performance is stable and reliable. It＇s able to arrive at ideal control effect of pH value in waste-water quickly and accurately and also easy to implement or promote.
出处
《科技通报》
北大核心
2009年第5期659-663,共5页
Bulletin of Science and Technology
基金
浙江省重大专项项目(2006C11227)
关键词
废水处理
PH控制
恒压解耦控制
waste-water treatment
pH control
constant pressure variables-decoupling control
