BLDC motor stator and rotor iron losses and thermal behavior based on lumped schemes and 3-D FEM analysis

Cassat, A.; Espanet, Christophe; Wavre, N.

doi:10.1109/tia.2003.816480

Cited by 60 publications

(12 citation statements)

References 3 publications

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“…The two-dimensional magnetic field analysis of motor is necessary. In order to simplify the simulated process, assumptions are given as follows: [11][12][13] 1. The electromagnetic field of the motor is regarded as quasi-static field.…”

Section: Design and Dynamic Simulation Of The Motormentioning

confidence: 99%

Design of permanent magnet motor actuator used in 550 kV gas-insulated switchgear disconnector

Shi

Lin

2015

Advances in Mechanical Engineering

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To improve the operating characteristics of disconnector, a limited rotating angle permanent magnet motor actuator is presented in this article. The mathematical relationship between the moving contact stroke and rotation angle of motor is obtained by analyzing the dynamical coordination characteristics of motor actuator used in 550 kV gas-insulated switchgear disconnector. The electromagnetic field equation of motor, motive equation of rotor, and circuit equation of winding are solved simultaneously for acquiring dynamical characteristics of motor. The electromagnetic-mechanical coupled calculating model of motor is established by finite element method, and magnetic saturation of stator tooth is calculated and analyzed. According to the operating principle of motor, the double-closed control system which collects the motor speed and contact stroke signal during the operation of disconnector is developed. The experimental results show that the opening and closing speeds of disconnector are 1.1 and 1.2 m/s, respectively, which meet design requirements. The speed-regulating operation of disconnector is also carried out so that the switching speed of disconnector can adjust by motor actuator and control system.

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Section: Design and Dynamic Simulation Of The Motormentioning

confidence: 99%

Design of permanent magnet motor actuator used in 550 kV gas-insulated switchgear disconnector

Shi

Lin

2015

Advances in Mechanical Engineering

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“…Various analytical and numerical methods have been developed for the thermal analysis of various types of electric motors [126][127][128][129][130][131][132][133][134][135][136][137][138]. Time-stepping FEA can provide greater accuracy for the thermal distribution in a motor.…”

Section: Thermal Analysis and Modeling Of Traction Motors *mentioning

confidence: 99%

Electric Machines and Drives in HEVs

Masrur

Gao

2011

Hybrid Electric Vehicles

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Advances in electric machines, along with progress in power electronics, are the key enablers for electric, hybrid electric, and plug-in hybrid electric vehicles (HEVs). Induction machines, permanent magnet (PM) synchronous machines, PM brushless DC machines, and switched reluctance machines (SRMs) have all been considered in various types of vehicle powertrain applications [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Brushed DC motors, once popular for traction applications such as in streetcars, are no longer considered a proper choice due to the bulky construction, low efficiency, the need for maintenance of the brush and commutator, high electromagnetic interference (EMI), low reliability, and limited speed range.When using electric motors for powertrain applications, there are a few possible configurations. Today's electric motors, combined with inverters and associated controllers, have a wide speed range for constant torque operations, and an extended speed range for constant power operations, which make the design of the powertrain much easier. Depending on the configuration of the hybrid powertrain, the design and selection of electric motor drives can also be different. For example, for series hybrid vehicles, the powertrain motor needs to be able to provide the required torque and speed for all driving conditions. Hence, the size of the motor will be fairly large, usually rated at 100 kW or more for passenger cars. A PM motor or an induction motor is the preferred choice. For mild and micro hybrids, only a small-size motor of a few kilowatts is required. Therefore the motor can be a claw pole DC motor, or a switched reluctance motor.Traditional automatic transmission or continuous variable transmission (CVT) used in conventional cars are no longer required in electric vehicles (EVs) and many HEVs. However, a fixed gear ratio speed reduction is often necessary. This is due to the fact that a high-speed motor has smaller size and less weight than a low-speed machine. A two-speed automatic transmission may be beneficial in saving vehicle energy consumption.Hybrid Electric Vehicles: Principles and Applications with Practical Perspectives, First Edition.

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“…In case of welding like this, however, the material of a welding rod and a welding area may influence the performance of a motor [1]. Particularly, for the stator which is designed in consideration of magnetic flux density saturation and in which most of core loss occurs, the influence of welding will be not a few [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

High-Speed BLDC Motor Design for Suction Fan and Impact on the Loss caused by Core Welding

Hong¹,

Kim²,

Hojoon³

et al. 2017

Journal of Electrical Engineering and Technology

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-This paper deals with the effects of welding, which is done to fix the stator stack, on a motor in case of fabricating a prototype motor that is manufactured in a small quantity. In the case of a small motor, the stator is designed and fabricated with the segmented core as a way to raise the fill factor of winding wire to the utmost within a limited size. In case of fabrication by welding both inside and outside of the stator in order to fix the segmented-core stator, the effects of stack are ignored, and the eddy current loss occurs. This paper performed the no-load test on an IPM-type BLDC motor for driving the suction fan of a vacuum cleaner, which was manufactured by using a segmented-core stator. As a result of the test, it was found that input power more than expected was supplied. To analyze the effects of welding by using the finite element analysis method and verify them experimentally, a stator was re-manufactured by bonding, and input power supplied during the no-load test was compared.

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BLDC motor stator and rotor iron losses and thermal behavior based on lumped schemes and 3-D FEM analysis

Cited by 60 publications

References 3 publications

Design of permanent magnet motor actuator used in 550 kV gas-insulated switchgear disconnector

Design of permanent magnet motor actuator used in 550 kV gas-insulated switchgear disconnector

Electric Machines and Drives in HEVs

High-Speed BLDC Motor Design for Suction Fan and Impact on the Loss caused by Core Welding

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