Adaptive PID controllers with robustness specifications Online publication date: Sat, 27-Sep-2014
by Ya-Gang Wang; Zhen-Ping Tian
International Journal of Modelling, Identification and Control (IJMIC), Vol. 20, No. 2, 2013
Abstract: This paper presents a new technique of adaptive PID controller with gain-phase margin or sensitivity specification. On the basis of process input and output data of normal operation in the control loop, the important frequency responses of process are estimated with signal decomposition and Laplace analysis, and then a second-order plus dead-time transform function is identified as well. Finally PID control parameters are calculated to satisfy gain-phase margin or sensitivity specification. The adaptive procedure of PID controller does not need any prior knowledge of the process and previous controller while the control loop is still in the normal operation. Simulation examples are given to show both effectiveness and feasibility of the adaptive PID controller.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Modelling, Identification and Control (IJMIC):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com