Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


akron1185567515.pdf (1.63 MB)

ETD Abstract Container

Abstract Header

STATE-VARIABLE FEEDBACK CONTROL OF A MAGNETICALLY SUSPENDED CENTRIFUGAL BLOOD PUMP

Selby, Normajean
http://rave.ohiolink.edu/etdc/view?acc_num=akron1185567515

Abstract Details

2007, Master of Science, University of Akron, Electrical Engineering.
An integral state-variable feedback controller was developed to regulate flow in a rotodynamic magnetically suspended centrifugal pump (MSCP). The controller specification was to maintain blood flow within 15% of 4 L/min against an open-loop load disturbance resulting in changes in pressure difference of ± 50 mmHg about nominal 100 mmHg occurring at 100 mmHg/min. For controller and observer design purposes, the nonlinear system was represented by a state-space model linearized about a nominal operating point with an output disturbance. A proportional integral (PI) observer was developed to estimate the unmeasurable states and disturbance. Matlab® was used for model identification and design and simulation of the controller and observer, which were then implemented using Labview®. In simulation and on the physical system, the controller maintained acceptable blood flow against an extreme unknown load disturbance occuring at a rate of approximately 200 mmHg/min.
Jose Alexis De Abreu-Garcia (Advisor)
116 p.
MAGNETICALLY SUSPENDED CENTRIFUGAL BLOOD PUMP; STATE VARIABLE FEEDBACK CONTROL; STATE SPACE; OBSERVER; PROPORTIONAL INTEGRAL OBSERVER; ESTIMATOR; CONTROLLER; INTEGRATOR; INTEGRAL CONTROL

Recommended Citations

Citations

  • Selby, N. (2007). STATE-VARIABLE FEEDBACK CONTROL OF A MAGNETICALLY SUSPENDED CENTRIFUGAL BLOOD PUMP [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1185567515

    APA Style (7th edition)

  • Selby, Normajean. STATE-VARIABLE FEEDBACK CONTROL OF A MAGNETICALLY SUSPENDED CENTRIFUGAL BLOOD PUMP. 2007. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1185567515.

    MLA Style (8th edition)

  • Selby, Normajean. "STATE-VARIABLE FEEDBACK CONTROL OF A MAGNETICALLY SUSPENDED CENTRIFUGAL BLOOD PUMP." Master's thesis, University of Akron, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1185567515

    Chicago Manual of Style (17th edition)

akron1185567515
851
© 2007, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.