Linear-Rotary Position Control System With Enhanced Disturbance Rejection for a Novel Total Artificial Heart

A novel implantable total artificial heart, hereinafter referred to as the ShuttlePump , is currently under development in a research collaboration between the Medical University of Vienna, the Power Electronic Systems Laboratory of ETH Zurich and Charite Berlin. Its novel, low-complexity, pulsatile...

Full description

Saved in:
Bibliographic Details
Published in:IEEE open journal of the Industrial Electronics Society 2024, Vol.5, p.359-375
Main Authors: Giuffrida, Rosario V., Horat, Andreas, Bortis, Dominik, Bierewirtz, Tim, Narayanaswamy, Krishnaraj, Granegger, Marcus, Kolar, Johann W.
Format: Article
Language:English
Subjects:
Actuators
Artificial biological organs
Artificial organs
Axial loads
Blood
Closed loops
Control systems design
Electronic systems
Force
Heart
Hydraulic loading
Inductance
permanent magnet machines
Permanent magnets
Pistons
Position control
Position measurement
rotating machines
Synchronous machines
Synchronous motors
Torque
Tracking
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel implantable total artificial heart, hereinafter referred to as the ShuttlePump , is currently under development in a research collaboration between the Medical University of Vienna, the Power Electronic Systems Laboratory of ETH Zurich and Charite Berlin. Its novel, low-complexity, pulsatile pumping principle requires a specially shaped piston performing a controlled, synchronized linear-rotary motion while providing the necessary hydraulic force and torque. The machine design of the Permanent Magnet Synchronous Machine (PMSM)-based linear-rotary actuator was conducted in previous work of the authors, leading to the construction of a hardware prototype satisfying the application requirements in terms of electromechanical force, torque, power losses, and volume. This article provides the details of the closed-loop linear-rotary position control system required to operate the ShuttlePump . The design of the position control system targets tight reference tracking (\pm8 mm linear stroke and continuous rotation) up to an operational frequency of 5 Hz, under the heavy disturbance introduced by the axial hydraulic load force, as high as 45 N. The experimental measurements show successful linear-rotary position tracking under the specified axial load, with a maximum error of 1 mm and 5^{\circ }.
ISSN:2644-1284
2644-1284
DOI:10.1109/OJIES.2024.3385865