Application of IMC-PID in the Hydraulic Headbox Total Pressure Control
Application of IMC-PID in the Hydraulic Headbox Total Pressure Control
复制标题
IMC-PID在水力流浆箱总压力控制中的应用
DOI：
10.4028/www.scientific.net/amr.462.789
复制
发表时间：
2012-02
期刊：
影响因子：
--
通讯作者：
单文娟
中科院分区：
文献类型：
--
作者：
汤伟;牛绪钟;单文娟
由于流浆箱需要高精度的总压控制，采用传统的PID控制器很难获得理想的控制效果。采用基于最小二乘法的一阶加滞后模型直接辨识方法，对总压控制系统的传递函数进行了辨识。然后结合内模控制-PID方法，设计了一种内模PID控制器，该控制器结构简单，只需要调整低通滤波器的时间常数。当模型与真实的过程不匹配时，通过调整低通滤波器的时间常数也可以获得满意的性能。将该算法应用于水力流浆箱全压控制系统。仿真和实际应用表明，IMC-PID具有较强的鲁棒性和良好的动态特性。最后，用S7-300 PLC实现了控制系统。
It is very difficult to obtain perfect performance to apply the conventional PID (Proportional-Integral-Derivative) controller, because hydraulic headbox needs high precision total pressure control. Transfer function of total pressure control system was identified by using the direct identification method which is based on the least square method for the first-order plus delay time model. Then combined with IMC (Internal-Model-control) –PID method, an IMC-PID controller was designed, which is simple and only needed to adjust one parameter-the time constant of low pass filter. Acceptable performance can also be obtained by tuning time constant of the low pass filter when the model doesn't match with the real process. The algorithm was applied to total pressure control system of hydraulic headbox. Simulation and practical application show that, IMC-PID is of strong robustness and good dynamic characteristics. Finally, the control system is implemented by S7-300 PLC.
影响因子：
4.2
作者：
Skogestad, S
通讯作者：
Skogestad, S
DOI：
10.1021/i200017a016
发表时间：
1982-01-01
期刊：
INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT
影响因子：
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作者：
GARCIA, CE;MORARI, M
通讯作者：
MORARI, M
DOI：
10.1021/i200032a041
发表时间：
1986-01-01
期刊：
INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT
影响因子：
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作者：
RIVERA, DE;MORARI, M;SKOGESTAD, S
通讯作者：
SKOGESTAD, S