Simulation for PID Controller of Modified Integral and Differential on Tandem Canal System
HUANG Kai
GUAN Guanghua
LIU Dazhi
MO Zhenning
Abstract：Automatic operation is an effective way to improve the utilization efficiency of water resource on ca-nal system.The basic idea is to maintain channels of water level and flow rate in a certain target state through re-al-time adjustment of the gate.Differential link of classic PID control algorithm easily leads to excessive over-shoot and even system instability,therefore PI controller without differential stage is commonly used in canal system.In order to improve the system response speed and reduce regulating action,starting threshold in the stage of the integral,with inertial factor for differential stage to improve the classic PID algorithm was intro-duced.Simulation was carried out for standard test cases from ASCE.Results showed that the modified algo-rithm could reduce the over shoot and decrease the adjustment of gate compared with traditional PID algorithm, and improve the system's response speed in contrast to PI algorithm.
Keywords：PID algorithmunsteady flowautomatic controlcanal operation
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：11( 1-11 )