Postoperative blood pressure control using gain-scheduling controller Online publication date: Tue, 27-Feb-2007
by H. Zheng, K.Y. Zhu
International Journal of Modelling, Identification and Control (IJMIC), Vol. 1, No. 4, 2006
Abstract: Postoperative hypertension is commonly found in cardiac patients, and untreated hypertension patients may develop severe complications. This paper presents a gain-scheduling control system for postoperative blood pressure management. The system is based on a controller bank designed a priori using multiple-model control. A tuning method, which can effectively select a suitable control output, is then adopted. Each controller in the controller bank is a non-linear Proportional-Integral (PI) controller. The proportional and integral gains of the controller are updated using the error and the change of the plant, so that a wide range of parameter changes and non-linearities of the plant can also be handled. In simulation study, a non-linear pulsatile-flow model is used. This model can accurately describe the patient's plant. The simulation results show that the proposed gain-scheduling control system can effectively handle the changes in the patient's dynamics and provide satisfactory control performance.
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
Our Blog 
Follow us on Twitter 
Visit us on Facebook