Comparison of the Design of 3-Pole BLDC Actuators/Motors with a Rotor Based on a Single Permanent Magnet

Permanent Magnet (PM) Brushless Direct Current (BLDC) actuators/motors have many advantages over conventional machines, including high efficiency, easy controllability over a wide range of operating speeds, etc. There are many prototypes for such motors; some of them have a very complicated construc...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2022-05, Vol.22 (10), p.3759
Main Authors: Smółka, Krzysztof, Firych-Nowacka, Anna, Wiak, Sławomir
Format: Article
Language:English
Subjects:
actuator
Actuators
Brushless motors
Computer Simulation
Control algorithms
D C motors
Direct current
Efficiency
Electricity
finite element methods
Home appliances
Household appliances
Households
Magnetics
Magnets
Magnets, Permanent
modeling and simulation
motor
Permanent magnets
PM BLDC
Rotors
Sensors
Software
Torque
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Summary:Permanent Magnet (PM) Brushless Direct Current (BLDC) actuators/motors have many advantages over conventional machines, including high efficiency, easy controllability over a wide range of operating speeds, etc. There are many prototypes for such motors; some of them have a very complicated construction, and this ensures their high efficiency. However, in the case of household appliances, the most important thing is simplicity, and, thus, the lowest price of the design and production. This article presents a comparison of computer models of different design solutions for a small PM BLDC motor that uses a rotor in the form of a single ferrite magnet. The analyses were performed by using the finite element method. This paper presents unique self-defined parts of basic PM BLDC actuators. With their help, various design solutions were compared with the PM BLDC motor used in household appliances. The authors proved that the reference device is the lightest one and has a lower cogging torque compared to other actuators, but also has a slightly lower driving torque.
ISSN:1424-8220
1424-8220
DOI:10.3390/s22103759