What is it about?

This work presents a modeling process for Brushless DC motors (BLDCMs) that considers both magnetic saturation and reluctance variation. DC motors are employed in diagnostic equipment like blood analysers and centrifuges. They enable the rotation and mixing of samples, facilitating the analysis of blood, urine, and other biological substances. Dental Tools: DC motors power dental equipment such as dental drills and handpieces. Two classes of Brushless DC motors were introduced for modeling using MATLAB simulation that involved reluctance variation: the non-uniform air gap model and the uniform air gap model. The characteristics of torque-speed for the two models are studied and compared. Non-uniform air gap mathematical model was subsequently adopted to study the effects of magnetic saturation. When magnetic saturation is incorporated in this work, some constant parameters in the models developed are transformed into variables that are dependent upon current variation.

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Why is it important?

Brushless DC motors (BLDCMs) are now widely used in motion control and various industries such as robotics, aerospace, medical devices, electric propulsion and etc., [1], [2], [3]. The growing popularity of BLDCM is attributed to their benefits over DC motors primarily because they are designed to eliminate physical contact between mechanical brushes and commutators. Hence the BLDCM stands out as the contender for demanding applications that require performance compared to other types of motors. Additionally, BLDCM proves to be an option for direct drive scenarios that demand torque for swift acceleration and deceleration [4], [5]. To ensure the performance, it is crucial for the mathematical model of BLDCM to factor in saturation and reluctance variation, as these elements are essential when generating substantial torque.

Perspectives

Brushless DC motors (BLDCMs) are now widely used in motion control and various industries such as robotics, aerospace, medical devices, electric propulsion and etc., [1], [2], [3]. The growing popularity of BLDCM is attributed to their benefits over DC motors primarily because they are designed to eliminate physical contact between mechanical brushes and commutators.

باسم فرحان
Imam alkadhum university college

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This page is a summary of: A Computer Modeling Characteristics of Brushless DC Motors in Medical Application, SAR Journal - Science and Research, December 2024, Association for Information Communication Technology Education and Science (UIKTEN),
DOI: 10.18421/sar74-10.
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