Design and control of a linear switched reluctance actuator of motorization a left ventricular assist device

Saidi, Imen; Hamdi, Mohamed; Soudani, Dhaou

doi:10.4066/biomedicalresearch.48-18-494

Cited by 2 publications

(1 citation statement)

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“…As kind of linear actuator, linear switched reluctance actuator (LSRA) becomes an attractive alternative technology to other linear actuators owing to a simple, low production cost, no intermediary mechanical gear, no permanent magnet and durable structure. It has been proposed for application such as precision motion control [1]- [7]. Typical LSRA can divided into three distinct topologies, single-sided planar, doubleside planar and tubular type [8].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of a Tubular Linear Switched Reluctance Actuator

2019

IJITEE

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In this paper, 2-D finite element analysis and MATLAB/Simulink software are used to model and simulate the proposed tubular linear switched reluctance actuator. The analysis of the actuator by finite element is essential for determining the magnetization characteristics. The obtained data from the analysis is useful for testing and verifying the machine operation performance and behavior. According to the analysis, when a step current signal of 3A was applied to the actuator, oscillation occurred at beginning of the motion with maximum overshooting of 2mm and settling time of 0.15s. Besides, the force analysis showed there was nonlinear force behavior between - 3.5N and 2N observed from the actuator motion. The saturation and nonlinear magnetization curve of materials causes the nonlinearity characteristics of thrust force and magnetic flux which affect the performance of the actuator. The determination of the characteristics and performance is crucial for the proposed actuator to realize a precision positioning system in the future.

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Section: Introductionmentioning

confidence: 99%