| Autor: |
Tao Wenfei, Chen Chen, Zhang Kejia |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Measurement Science Review, Vol 24, Iss 4, Pp 129-136 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1335-8871 |
| DOI: |
10.2478/msr-2024-0018 |
| Popis: |
In this paper, adaptive proportional derivative (APD) parameter control was proposed to solve the problem of high power consumption caused by the unclear mechanism of liquid disturbance during the lifting-up of magnetic bearing in left ventricular assist devices. A mathematical model was derived that describes how the rotor operates in liquid filling. The disturbance caused by the liquid in the lifting-up process was analyzed, and an adaptive control system was developed to improve dynamic performance and reduce power consumption. The experimental results show that APD control requires a shorter rise time without overshoot of rotor displacement compared to traditional fixed configurations. When using the APD controller, the peak current dropped by 8%. The duration in which the current is greater than 1A was reduced by 10.2 ms, and the average current also dropped by 34%. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
