Title :
H[infinity] Loop Shaping Control for Quadruple Tank System
Author :
Zhijun Li ; Changbing Zheng
Author_Institution :
Key Labs. of Field Bus & Autom., North China Univ. of Technol., Beijing, China
Abstract :
In this paper, the control system of quadruple tank is designed which is based on the structure of experimental facility of quadruple tank and the method of H∞ loop shaping control. Firstly, The system model of the quadruple tank are acquired with system identification. Then the pre- and post-compensation are selected to make the singular values of the nominal controlled system become the desired open-loop gain. Finally the H∞ loop shaping controller is designed base on the robust stabilization theory. The controller we have obtained will be reduced to the PID controller which is easy to implement. The final controller is firstly used in the simulink environment to get the simulation result. Then the result is verified on the experimental facility of quadruple tank, and the experimental waveforms indicates that the controller have good control performance and robust performance.
Keywords :
H∞ control; compensation; control system synthesis; open loop systems; pumps; robust control; tanks (containers); three-term control; H∞ loop shaping control; PID controller; Simulink environment; control performance; nominal controlled system; open-loop gain; post-compensation; precompensation; quadruple tank system design; robust performance; robust stabilization theory; singular values; system identification; system model; Control systems; Design methodology; Laboratories; Mathematical model; Process control; Robustness; Valves; H∞ loop shaping; PID controller; quadruple tank; robust performance;
Conference_Titel :
Intelligent Human-Machine Systems and Cybernetics (IHMSC), 2014 Sixth International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4799-4956-4
DOI :
10.1109/IHMSC.2014.131
