Reduction of Cogging Torque in Surface Mounted Permanent Magnet Brushless DC Motor by Adapting Rotor Magnetic Displacement

Anuja, T. A.; Doss, M. Arun Noyal

doi:10.3390/en14102861

Cited by 17 publications

(6 citation statements)

References 27 publications

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“…Reducing the cogging torque is very important to improve the efficiency of electric motors [ 30 ], especially for the PM BLDC [ 31 ]. A detailed description of the cogging torque limitation methods can be found in the literature (e.g., References [ 32 , 33 , 34 , 35 ]). Unfortunately, with such a small size and the rotor in the form of a single magnet, some of these methods—for example, the use of an axial tilt of the rotor by certain discrete steps—are impractical or even not applicable.…”

Section: Resultsmentioning

confidence: 99%

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

Smółka

Firych‐Nowacka

2022

Sensors

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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.

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Section: Resultsmentioning

confidence: 99%

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

Smółka

Firych‐Nowacka

2022

Sensors

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“…Using the Virtual Work Method, Anuja TA et al [14] developed an analytical expression for determining the shifting angle with the least cogging torque in the PMBLDC motor. 3D FEA was used to study the optimization of the shifting angle with the least amount of cogging torque.…”

Section: Related Workmentioning

confidence: 99%

Impact of Stator Slot Shape on Cogging Torque of BLDC Motor

Kanagarathinam¹,

Manikandan

Ravivarman³

2023

IJEER

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Brushless DC (BLDC) motors have a wide range of applications in these modern days, such as electric vehicles, industrial robots, washing machines, pumps, and blowers. The brushless DC motors have many advantages when compared to induction motors and conventional DC motors, such as better speed control, noiseless operation, high efficiency, less maintenance, and a long life. Along with these benefits, there is one major disadvantage known as cogging, which causes undesirable effects in the motor such as noises and vibrations. BLDC motors have been widely used in automation and industrial applications due to their attractive features. There are certain parameters to be considered while designing a BLDC motor, such as its dimensions, number of windings turns, type of magnetic materials used, required torque, output current, slot-to-depth ratio, efficiency, temperature rise, etc.

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“…BLDC motors are not only preferred for power transmission in electric vehicles. We can use BLDC motors for applications such as turbochargers, blowers, seat comforting systems, etc., [55]. Table . VII shows a comparison of several electric vehicles and their power rating and power train drive type, operating voltage, power, and battery used across the world.…”

Section: B Electric Vehiclementioning

confidence: 99%

A Review of BLDC Motor: State of Art, Advanced Control Techniques, and Applications

et al. 2022

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Brushless direct current (BLDC) motors are mostly preferred for dynamic applications such as automotive industries, pumping industries, and rolling industries. It is predicted that by 2030, BLDC motors will become mainstream of power transmission in industries replacing traditional induction motors. Though the BLDC motors are gaining interest in industrial and commercial applications, the future of BLDC motors faces indispensable concerns and open research challenges. Considering the case of reliability and durability, the BLDC motor fails to yield improved fault tolerance capability, reduced electromagnetic interference, reduced acoustic noise, reduced flux ripple, and reduced torque ripple. To address these issues, closed-loop vector control is a promising methodology for BLDC motors. In the literature survey of the past five years, limited surveys were conducted on BLDC motor controllers and designing. Moreover, vital problems such as comparison between existing vector control schemes, fault tolerance control improvement, reduction in electromagnetic interference in BLDC motor controller, and other issues are not addressed. This encourages the author in conducting this survey of addressing the critical challenges of BLDC motors. Furthermore, comprehensive study on various advanced controls of BLDC motors such as fault tolerance control, Electromagnetic interference reduction, field orientation control (FOC), direct torque control (DTC), current shaping, input voltage control, intelligent control, drive-inverter topology, and its principle of operation in reducing torque ripples are discussed in detail. This paper also discusses BLDC motor history, types of BLDC motor, BLDC motor structure, Mathematical modeling of BLDC and BLDC motor standards for various applications.INDEX TERMS BLDC motor, torque ripple, current shaping techniques, controlling input voltage, direct torque control, drive-inverter topology, field orientation control, motor design, fault tolerance control and electromagnetic interference reduction.

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Reduction of Cogging Torque in Surface Mounted Permanent Magnet Brushless DC Motor by Adapting Rotor Magnetic Displacement

Cited by 17 publications

References 27 publications

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

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

Impact of Stator Slot Shape on Cogging Torque of BLDC Motor

A Review of BLDC Motor: State of Art, Advanced Control Techniques, and Applications

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