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Journal articles on the topic 'Axial Flux Brushless Dc Motor'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

Zhang, Chi, and Guang Zhou Zhao. "Design and FEM Analysis of a High Efficiency Axial-Flux Brushless DC Motor for Flywheel System." Key Engineering Materials 480-481 (June 2011): 1099–104. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.1099.

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A high efficiency axial-flux brushless DC motor assisted by self axial magnetic bearing and used in flywheel energy storage system is proposed in this paper. In this design, the rotor with composite rim acts as the flywheel of the system and is sandwiched between two disk type stators which are made of amorphous metal to reduce iron losses. The dual-stator machine combines the functions of axial flux brushless DC motor and axial magnetic bearing to rotate the flywheel-rotor and levitate it in vertical orientation. The other four degrees of freedom in radial directions are constrained by ceramic ball bearings for simple operation, high efficiency and long life span. Optimized design approaches are employed to achieve low losses, and high power density. Three-dimensional FEM analyses are implemented, and the analysis results support the feasibility of the proposed motor.

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2

Nurmalia, Alif, Widyono Hadi, and Widya Cahyadi. "Performance Test of Three-Phase Brushless Direct Current Motor Axial Flux with Differences Diameter of Neodymium Type Permanent Magnet." ELKHA 13, no. 1 (April 20, 2021): 55. http://dx.doi.org/10.26418/elkha.v13i1.41693.

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Technology that is growing rapidly and innovations that have sprung up in the electrical field today are driving the use of electricity as a source of energy to do work. Electric motor is one component that is very popular in the industrial world and households that are useful to human life. In addition to DC motors and induction motors, there are also 3 phase brushless direct current (BLDC) motors which are a type of synchronous motor where magnetic fields are produced by rotor and stator at the same frequency. The rotor is a moving part of the brushless direct current motor which is a place of permanent magnet called a pole. This paper discusses the performance of brushless direct current 3 phase axial flux motors with different diameters of neodymium type permanent magnets. Tests carried out using neodymium permanent magnets with diameters of 15mm x 2mm and 20mm x 2mm were tested without using a load and using load. The parameters used in testing motor performance include speed, torque, and motor power with a source voltage of 12V, 16V, 20V, and 24V. The test results shows that the speed value of a BLDC motor using permanent magnets with a size of 20mm x 2mm is greater than that of permanent magnets of 15mm x 2mm. The same thing applies to the value of the power produced while, for the value of torque when the motor uses a permanent magnet of 15mm x 2mm will be greater than that of a motor using a permanent magnet of 20mm x 2mm.

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3

Neethu, S., K. S. Shinoy, and A. S. Shajilal. "Efficiency Improvement of an Axial Flux Permanent Magnet Brushless DC Motor for LVAD Application." Applied Mechanics and Materials 110-116 (October 2011): 4661–68. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.4661.

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This paper presents the Finite Element Analysis (FEA) based design, optimization and development of an axial flux permanent magnet brushless DC motor for Left Ventricular Assist Device (LVAD). With the design objective of improving the existing motor's efficiency , different topologies of AFPM machine has been examined. Selection of optimal magnet frac-tion, Halbach arrangement of rotor magnets and the use of Soft Magnetic Composite (SMC) material for the stator core results in a novel motor with improved efficiency and torque profile. The results of the 3D Finite element analysis for the novel motor have been shown.Thermal analysis for the existing motor has also been done and the FEA results are compared with the analytical and experimental results.Finally the test results for the novel motor and the general conclusions are also discussed.

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4

Ben Amor, Mariem. "Design and Optimization of Axial Flux Brushless DC Motor Dedicated to Electric Traction." American Journal of Electrical Power and Energy Systems 4, no. 2 (2015): 42. http://dx.doi.org/10.11648/j.epes.s.2015040201.16.

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5

Utomo, Satryo Budi, Januar Fery Irawan, Widyono Hadi, and BA Sastiko. "Design of 6S8P axial flux permanent magnet brushless DC motor with double-sided rotor." IOP Conference Series: Materials Science and Engineering 1034, no. 1 (February 1, 2021): 012053. http://dx.doi.org/10.1088/1757-899x/1034/1/012053.

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6

Upadhyay, P. R., and K. R. Rajagopal. "FE Analysis and Computer-Aided Design of a Sandwiched Axial-Flux Permanent Magnet Brushless DC Motor." IEEE Transactions on Magnetics 42, no. 10 (October 2006): 3401–3. http://dx.doi.org/10.1109/tmag.2006.879451.

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7

Ebadpour, Mohsen, and Mohammad Reza Alizadeh Pahlavani. "Performance Analysis and the Cost Effective Position Sensorless Control of Axial Flux PM Brushless DC Motor." Journal of Asian Electric Vehicles 11, no. 2 (2013): 1645–51. http://dx.doi.org/10.4130/jaev.11.1645.

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8

Patel, Amit N., and Bhavik Suthar. "Weight Optimization of Axial Flux Dual Air-Gap Permanent Magnet Brushless DC Motor for Electrical Vehicle." International Journal on Electrical Engineering and Informatics 11, no. 4 (December 31, 2019): 684–96. http://dx.doi.org/10.15676/ijeei.2019.11.4.4.

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9

Mendrela, E. A., and M. Jagiela. "Analysis of Torque Developed in Axial Flux, Single-Phase Brushless DC Motor With Salient-Pole Stator." IEEE Transactions on Energy Conversion 19, no. 2 (June 2004): 271–77. http://dx.doi.org/10.1109/tec.2004.827295.

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10

Leuschke, Rainer, and Brian C. Fabien. "Disturbance Attenuation Using a dc Motor for Radial Force Actuation in a Rotordynamic System." Journal of Dynamic Systems, Measurement, and Control 129, no. 6 (January 18, 2007): 804–12. http://dx.doi.org/10.1115/1.2789471.

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This paper presents a technique for attenuating the external disturbances acting on the rotor of a prototype flywheel energy storage device. The approach uses a three-phase axial flux brushless dc motor to simultaneously produce a torque and a radial force. This is accomplished by using two phases of the motor for torque generation, and one phase to produce the radial force. The paper develops a set of equations that can be used to predict the forces generated by the motor coils. These equations are used to implement a feedback control system to suppress the effects of external excitations. The nonlinear controller requires the velocity measurements and the angular displacement of the flywheel. The controller essentially adds damping to the system, and the constant feedback gains solve an optimization problem that involves a H∞ bound on the disturbance attenuation. The experimental results clearly demonstrate that the dc motor can be used to suppress unwanted radial vibrations due to external disturbances.

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11

Sang-Ho Lee, Su-Beom Park, Soon-O Kwon, Ji-Young Lee, Jung-Jong Lee, Jung-Pyo Hong, and Jin Hur. "Characteristic analysis of the slotless axial-flux type brushless DC motors using image method." IEEE Transactions on Magnetics 42, no. 4 (April 2006): 1327–30. http://dx.doi.org/10.1109/tmag.2006.871922.

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12

Mahmoudi, Amin, Nasrudin Abd Rahim, and Hew Wooi Ping. "GENETIC ALGORITHM AND FINITE ELEMENT ANALYSIS FOR OPTIMUM DESIGN OF SLOTTED TORUS AXIAL-FLUX PERMANENT-MAGNET BRUSHLESS DC MOTOR." Progress In Electromagnetics Research B 33 (2011): 383–407. http://dx.doi.org/10.2528/pierb11070204.

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13

Upadhyay, P. R., K. R. Rajagopal, and B. P. Singh. "Design of a Compact Winding for an Axial-Flux Permanent-Magnet Brushless DC Motor Used in an Electric Two-Wheeler." IEEE Transactions on Magnetics 40, no. 4 (July 2004): 2026–28. http://dx.doi.org/10.1109/tmag.2004.829820.

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14

Zhang, Z., F. Profumo, A. Tenconi, and M. Santamaria. "Analysis and experimental validation of performance for an axial flux permanent magnet brushless DC motor with powder iron metallurgy cores." IEEE Transactions on Magnetics 33, no. 5 (1997): 4194–96. http://dx.doi.org/10.1109/20.619707.

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15

Patterson, D., and R. Spee. "The design and development of an axial flux permanent magnet brushless DC motor for wheel drive in a solar powered vehicle." IEEE Transactions on Industry Applications 31, no. 5 (1995): 1054–61. http://dx.doi.org/10.1109/28.464519.

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16

Yang, Y. P., Y. P. Luh, and C. H. Cheung. "Design and Control of Axial-Flux Brushless DC Wheel Motors for Electric Vehicles—Part I: Multiobjective Optimal Design and Analysis." IEEE Transactions on Magnetics 40, no. 4 (July 2004): 1873–82. http://dx.doi.org/10.1109/tmag.2004.828164.

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17

Yang, Y. P., J. P. Wang, S. W. Wu, and Y. P. Luh. "Design and Control of Axial-Flux Brushless DC Wheel Motors for Electric Vehicles—Part II: Optimal Current Waveforms and Performance Test." IEEE Transactions on Magnetics 40, no. 4 (July 2004): 1883–91. http://dx.doi.org/10.1109/tmag.2004.828165.

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18

Ramesh, P., R. Gokulakrishnan, N. Sathyanarayanan, R. Hemantha Kumar, and N. C. Lenin. "Step by Step Design of Flux Switching Machine Using Electromagnetic Principle." Applied Mechanics and Materials 787 (August 2015): 869–73. http://dx.doi.org/10.4028/www.scientific.net/amm.787.869.

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Flux switching motor (FSM) is one of the classification of brushless DC motor. The major drawback of the conventional DC machine is presence of brushes and commutator. This makes conventional DC machines not suitable to operate in hazardous conditions. FSM is a type of brushless DC motor without commutator and rotor windings, which has the advantages of both conventional DC and switched reluctance machines. Here a step by step electromagnetic design of FSM using the basic reluctance principle. The designed parameters are verified using two dimensional finite element analysis (FEA). Finally, the analytical results are compared with the simulated results.

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19

Crapo, A. D., and J. D. Lloyd. "Homopolar DC motor and trapped flux brushless DC motor using high temperature superconductor materials." IEEE Transactions on Magnetics 27, no. 2 (March 1991): 2244–47. http://dx.doi.org/10.1109/20.133662.

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20

Raja Othman, Raja Nor Firdaus, Farina Sulaiman, Suhairi Rizuan, Kasrul Abdul Karim, Auzani Jidin, Tole Sutikno, and Norhisam Misron. "Design of Hollow-Rotor Brushless DC Motor." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 2 (June 1, 2016): 387. http://dx.doi.org/10.11591/ijpeds.v7.i2.pp387-396.

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This paper discusses about design of hollow-rotor Brushless DC (BLDC) motor. A conventional BLDC motor has more leakage flux circling at the end of the permanent magnet that will limit torque. To overcome this problem, a new BLDC model known as hollow-rotor is proposed. The objective of this research is to design a hollow-rotor motor that will have higher torque density compared to conventional BLDC motor using Finite Element Method (FEM). In addition, performance analysis of the proposed hollow-rotor has also been carried out. For validation, the result of FEM is compared with the measurement result. It shows that, the simulation result has good agreement with the measurement result. For comparison, hollow-rotor shows higher torque density compared to conventional BLDC motor. As a conclusion, this paper provides guidelines and analysis in designing high torque hollow-rotor motor.

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21

Guo-Jhih Yan, Liang-Yi Hsu, Jing-Hui Wang, Mi-Ching Tsai, and Xin-Yi Wu. "Axial-Flux Permanent Magnet Brushless Motor for Slim Vortex Pumps." IEEE Transactions on Magnetics 45, no. 10 (October 2009): 4732–35. http://dx.doi.org/10.1109/tmag.2009.2022499.

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22

Brakanskis, Uldis, Janis Dirba, Ludmila Kukjane, and Viesturs Drava. "Analysis of a Permanent-Magnet Brushless DC Motor with Fixed Dimensions." Scientific Journal of Riga Technical University. Power and Electrical Engineering 26, no. 1 (January 1, 2010): 78–81. http://dx.doi.org/10.2478/v10144-010-0025-z.

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Analysis of a Permanent-Magnet Brushless DC Motor with Fixed DimensionsThe purpose of this paper is to describe the analysis of a permanent-magnet brushless DC motor with fixed outer diameter and active zone length. The influence of air gap, material of permanent magnets and their size on the magnetic flux density of the machine and magnetic flux is analyzed. The work presents the calculations of two programs, the comparison of the results and the most suitable combination of factors that has been found.

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23

Ozturk, Salih Baris, and Hamid A. Toliyat. "Direct Torque and Indirect Flux Control of Brushless DC Motor." IEEE/ASME Transactions on Mechatronics 16, no. 2 (April 2011): 351–60. http://dx.doi.org/10.1109/tmech.2010.2043742.

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24

Lee, Jin-hee, Thomas Anthony Lipo, and Byung-il Kwon. "Optimal design of novel concentrated flux IPM type brushless DC motor." International Journal of Applied Electromagnetics and Mechanics 39, no. 1-4 (September 5, 2012): 957–63. http://dx.doi.org/10.3233/jae-2012-1565.

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25

Zhao, Nan Nan, Qian Yang, Ming Hui Zhang, and Wei Guo Liu. "Performance Comparison between Surface-Mounted and Interior Brushless DC Motor." Applied Mechanics and Materials 416-417 (September 2013): 133–38. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.133.

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In this paper, the cogging torque, airgap flux density, back-emf, and losses of a surface-mounted and a hybrid magnetization interior brushless machines with the same stator, airgap width, armature core length, material, permanent magnet consumption, speed and copper loss are compared. The analysis reveals that the loss in rotor back iron of interior motor is higher than that in surface-mounted motor due to the skin effect while the eddy current losses in sleeve and magnets of surface-mounted motor are significant, causing the total losses of surface-mounted motor are higher than that of interior motor.

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26

Wang, Da Fang, De Ming Bu, Cheng Zhu, and Chuan Wei Zhou. "Application and Control of Brushless DC Motor for Electric Vehicle." Advanced Materials Research 724-725 (August 2013): 1398–401. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.1398.

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Brushless DC motor has simple structure, great power density, torque output and high efficiency. It has a broad application prospect for electric vehicle. The conventional scheme of BLDCM drive system adopts motor ontology, power drive circuits and position sensor. BLDCM is usually used with the mode of 3-phase 6-state PWM. Due to its structure and commutation strategy, it has many problems to be solved if works on electric vehicle. The basic operating principle of Brushless DC motor and the basic power drive system was discussed. In addition, investigated the torque ripple, flux-weakening speed control and brake energy regeneration for electric vehicle. Solving these problems can promote BLDCM and electric vehicle industry.

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27

Kwon, Hwabhin, Won-Sik Lee, Gyu-Tak Kim, and Heesung Park. "Thermal Characteristics of 600 W Brushless DC Motor under Axial Loading Condition." Journal of the Korean Society for Precision Engineering 33, no. 12 (December 1, 2016): 999–1005. http://dx.doi.org/10.7736/kspe.2016.33.12.999.

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28

Ionel, D. M., J. F. Eastham, and T. Betzer. "Finite element analysis of a novel brushless DC motor with flux barriers." IEEE Transactions on Magnetics 31, no. 6 (1995): 3749–51. http://dx.doi.org/10.1109/20.489759.

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29

Wu, Di, Z. Q. Zhu, and Robert Nilssen. "Development of a Segmented Linear Variable Flux Reluctance Motor with DC-Field Coil." Applied Mechanics and Materials 416-417 (September 2013): 203–8. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.203.

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This paper proposes a new type of linear motor based on the concept of variable flux reluctance motor (VFRM). By adopting segmented primary stator, the segmented linear VFRM (SLVFRM) can eliminate asymmetry between phases due to end-effect. Meanwhile, multi-phase SLVFRM of any number of phases can be obtained by adjusting number of segments directly. The stator/mover tooth pitch combination and segments arrangement rules are also illustrated. An optimized 3-phase SLVFRM is analyzed by finite element analysis, with focus on characteristics such as cogging force, back-EMF and winding inductances. Further, both brushless AC (BLAC) and brushless DC (BLDC) drive for SLVFRM are investigated. Besides much smaller force ripple, BLDC drive can obtain higher average force at same RMS current due to trapezoidal back-EMF. The force characteristicwith variousAC and DC currents and current angles are also investigated in the paper, and it shows that SLVFRM has negligible reluctance force while keeping the same AC and DC currents is optimal for maximum efficiency operation under a fixed copper loss.

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30

Ishikawa, Takeo, Kouki Yonetake, Nobuyuki Kurita, and Masahisa Tsuchiya. "Estimation of Magnetization Distribution in Permanent Magnet of Brushless DC Motor." Materials Science Forum 670 (December 2010): 360–68. http://dx.doi.org/10.4028/www.scientific.net/msf.670.360.

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This paper proposes a method to estimate the magnetization distribution in permanent magnet of a Brushless DC motor when the excitation voltage of a magnetizer is changed. First, we show from the experimental results that there is an optimal excitation voltage to reduce the cogging torque of the motor. Next, we show that it is possible to estimate the magnetization distribution in the permanent magnet by using the measured flux density distribution and cogging torque.

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31

Ahmad Tarmizi, Yusnida, Auzani Jidin, Kasrul Abdul Karim, and T. Sutikno. "A simple constant switching frequency of direct torque control of brushless DC motor." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 1 (March 1, 2019): 10. http://dx.doi.org/10.11591/ijpeds.v10.i1.pp10-18.

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This paper discusses about direct torque control of Brushless DC motor by injecting the triangular waveform and using PI controller in order to reduce the torque and obtain constant switching frequency. Brushless DC motor are widely used in applications which require wide range of speed and torque control because of robust, longer lifespan, faster torque response and able to operate at high speed. Unlike conventional three phase DTC of induction machine (IM),the proposed DTC approach introduces two phase conduction mode. Besides that, the magnitude flux is considered constant in which the results only gains from constant torque region. Thus, the flux control loop is eliminated while implement this scheme. Using the triangular waveform that will be compare with actual torque, the proper switching pattern can be selected to control the generated torque and reducing commutation torque ripple. The torque response depends on the speed of the stator flux linkage which is directly controlled by selecting appropriate voltage space vectors from a look-up table to make sure the torque error within the band. The validity of the proposed control scheme for constant switching frequency and reduce torque ripple are verified through simulation and experimental results.

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32

Nag, Tridibesh, Arijit Acharya, Debashis Chatterjee, Ashoke Kumar Ganguli, and Arunava Chatterjee. "Efficiency Optimized Brushless DC Motor Drive based on Input Current Harmonic Elimination." International Journal of Power Electronics and Drive Systems (IJPEDS) 6, no. 4 (December 1, 2015): 869. http://dx.doi.org/10.11591/ijpeds.v6.i4.pp869-875.

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<p>This paper describes efficiency improvement of a position sensorless brushless DC (BLDC) motor with improved PWM scheme for the inverter compared to existing ones. This is based on Selective Harmonic Elimination (SHE). The proposed method reduces total harmonic distortion (THD) from the input current and armature flux and thereby reducing the core losses. The effectiveness of the proposed scheme is demonstrated through simulation and experimental results.</p>

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33

Kaňuch, Ján, and Želmíra Ferková. "Design and simulation of disk stepper motor with permanent magnets." Archives of Electrical Engineering 62, no. 2 (June 1, 2013): 281–88. http://dx.doi.org/10.2478/aee-2013-0022.

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Abstract In this paper the design and the magneto-static simulation of axial-flux permanent- magnet stepper motor with the disc type rotor is presented. Disk motors are particularly suitable for electrical vehicles, robots, valve control, pumps, centrifuges, fans, machine tools and manufacturing. The brushless machine with axial flux and permanent magnets, also called the disc-type machine, is an interesting alternative to its cylindrical radial flux counterpart due to the disk shape, compact construction and high torque density. This paper describes a design of four phase microstepping motor with the disc type rotor. The FEM modeling and the 3D magneto-static simulation of the disk stepper motor with permanent magnets is being subject of the article, too. Disc rotor type permanent magnet stepper motor for high torque to inertia ratio is ideal for robotics and CNC machines.

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34

POP, Adrian, Frédéric GILLON, and Mircea RADULESCU. "MODELLING AND DESIGN OPTIMIZATION OF A SMALL AXIALFLUX BRUSHLESS PERMANENT-MAGNET MOTOR FOR ELECTRIC TRACTION PURPOSES." Rail Vehicles, no. 3 (August 2, 2011): 17–20. http://dx.doi.org/10.53502/rail-139542.

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This paper presents the modelling and design optimization of an axial-flux brushless permanent-magnet motor with one rotor-two stators configuration. This particular axialflux machine is suitable to traction applications. The reason is that, firstly, fixing of the stators may be arranged reasonably easily; secondly, the topology with two stators is able to operate even if one of its stators is electrically disconnected; thirdly, the axial loading of bearings is small due to the symmetry of the motor structure. A prototype machine was designed and manufactured for verifying the design optimization results.

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35

Tounsi, Souhir. "Design and Optimization of Axial Flux Brushless DC Generator Dedicated to Generation of Renewable Energy." American Journal of Electrical Power and Energy Systems 4, no. 3 (2015): 1. http://dx.doi.org/10.11648/j.epes.s.2015040301.11.

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36

H. Panchal, Tejas, Rajesh M. Patel, and Amit N. Patel. "Efficiency Improvement of Radial Flux Permanent Magnet Brushless DC Motor Using Hiperco Magnetic Material." International Journal of Engineering Trends and Technology 69, no. 5 (May 25, 2021): 57–61. http://dx.doi.org/10.14445/22315381/ijett-v69i5p210.

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37

Jang, G. H., J. W. Yoon, K. C. Ro, N. Y. Park, and S. M. Jang. "Performance of a brushless DC motor due to the axial geometry of the permanent magnet." IEEE Transactions on Magnetics 33, no. 5 (1997): 4101–3. http://dx.doi.org/10.1109/20.619676.

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38

Kang, K. J., G. H. Jang, S. J. Sung, and J. H. Chang. "Development of a highly efficient brushless dc motor utilizing both radial and axial air gaps." Journal of Applied Physics 111, no. 7 (April 2012): 07E721. http://dx.doi.org/10.1063/1.3676210.

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39

Wang, Xiaoyuan, Xiaoguang Wang, and Tao Fu. "Extended Speed Range Control of Axial Flux Ironless PMSM using Current-Source Inverter." International Journal of Advanced Pervasive and Ubiquitous Computing 5, no. 3 (July 2013): 14–22. http://dx.doi.org/10.4018/ijapuc.2013070102.

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Axial flux ironless permanent magnetic synchronous motor (AFIPMSM) is a new permanent magnetic motor. It has many advantages, such as little volume, low mass, low lost, high power density, no cogging torque, and the sinusoidal back EMF. It gradually becomes the good choice in drive system. However, because of the coreless structure and the long air gap, the winding inductance is small, which causes the current is not continued with the PWM control based on VSI. On the other hand, the armature reaction is so small that it is difficulties to weakening flux. The motor only be working under the base speed. To solve this problem, a novel speed control strategy to operate a current source inverter (CSI) driven AFIPMSM. And a modified dc-dc converter is used to boost the voltage of DC-link, which can extend the operating ranges of speed. Simulation and experimental results confirm the validity of the proposed control method.

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40

Hidayat, Faisal Alif. "The UNJUK KERJA MOTOR BRUSHLESS DIRECT CURRENT AXIAL FLUX 3 FASA STATOR GANDA TERHADAP PERBEDAAN JENIS KAWAT ENAMEL PADA KUMPARAN STATOR." DIELEKTRIKA 7, no. 2 (August 29, 2020): 94. http://dx.doi.org/10.29303/dielektrika.v7i2.244.

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Pada fenomena dewasa kini, krisis energi merupakan suatu bentuk masalah yang paling menjadi perbincangan khalayak, termasuk di Indonesia. Berdasarkan masalah tersebut, perlu pengembangan dan perbaikan terhadap teknologi yang sudah maupun belum ada untuk masyarakat. Pengujian unjuk kerja dilakukan menggunakan motor Brushless Direct Current Axial Flux 3 fasa stator ganda. Pengujian dilakukan dengan dua kawat enamel yang berbeda jenis (Hellenic dan Supreme) 0,3 mm. Setiap kumparan pada kawat enamel memiliki panjang 13,5 m yang terpasang pada stator. Dari hasil pengujian dengan menggunakan perbedaan jenis kawat enamel Hellenic dan Supreme, didapat perbedaan pada kecepatan maupun torsi yang dihasilkan. Namun untuk motor Brushless Direct Current kawat enamel Hellenic lebih baik karena memiliki kuat torsi yang lebih tinggi (0,336 Nm) dengan perubahan panas yang rendah jika dibandingkan dengan kawat enamel Supreme (0,24 Nm) dengan perubahan panas yang tinggi. Diketahui perubahan resistansi pada kawat enamel sangat signifikan berubah saat pengujian berulang yang dipengaruhi perubahan suhu.

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41

Upadhyay, P. R., K. R. Rajagopal, and B. P. Singh. "Computer aided design of an axial-field permanent magnet brushless dc motor for an electric vehicle." Journal of Applied Physics 93, no. 10 (May 15, 2003): 8689–91. http://dx.doi.org/10.1063/1.1558595.

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42

Sandeep, V., and Sharankumar Shastri. "Analysis and Design of PMBLDC Motor for Three Wheeler Electric Vehicle Application." E3S Web of Conferences 87 (2019): 01022. http://dx.doi.org/10.1051/e3sconf/20198701022.

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This paper deals with analysis and design of permanent magnet brushless dc machine (PMBLDCM), primarily aimed for three wheeler applications. The motor sizing accounts for the forces acting on the motor and the design variables such as number of stator and rotor slots, stator and rotor dimensioning, air-gap approximation, slot sizing, flux per pole and permanent magnet sizing has been explained using simplified equations. The designed motor rated at 1.5 kW, 3000 rpm, 120 V radial flux surface mounted permanent magnet rotor, is then assessed using analytical tools for design such as ANSYS’s RMXprt to verify the analytically obtained results. These results are then verified using the computer aided analysis tool, finite element analysis, using ANSYS Maxwell, to obtain the electromagnetic characteristics of the motor for further modification of design.

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Ho, Tze Yee, Li Yuan Chen, Lung Hsian Yang, and Wei Lun Lin. "The Design and Implementation of a BLDC Motor Drive with DTC." Applied Mechanics and Materials 130-134 (October 2011): 2841–45. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.2841.

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This paper presents a brushless DC (BLDC) motor drive with direct torque control (DTC).The detailed hardware and software design are analyzed and designed. The performance of the BLDC employing DTC is compared with that of BLDC utilizing PWM current control. A prototype of BLDC motor drive based on the DSP controller with DTC control is implemented and validated by the exhibition of waveforms measurement for currents, torque, flux linkage, and speed. The experimental results not only verify the feasibility of designed system but also demonstrate that BLDC with DTC control has superior characteristics than that with PWM current control.

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Soni, Umesh Kumar, and Ramesh Kumar Tripathi. "A low-power prototype of contactless field power controlled BLAC and BLDC motors." Wireless Power Transfer 7, no. 2 (August 13, 2020): 106–15. http://dx.doi.org/10.1017/wpt.2020.11.

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AbstractIn this paper, a new design configuration has been proposed in which a prototype of resonant inductive power transfer-based contactless power transfer to wound rotor has been developed which provides field power to brushless alternating current (BLAC) or brushless direct current (BLDC) motors without the use of permanent magnets in the rotor. Further, wound field in the rotor of DC motor can be powered without carbon brushes. The proposed design facilitates motor performance improvement by adding an extra dimension of field flux control, while the armature circuit is conventionally fed from position detection and commutation schemes. It contains a primary multilayer concentrated coil fed with high-frequency resonating AC supply or switched mode supply. A single layer helical secondary coil coaxially fixed on the shaft receives high frequency wireless AC power transmitted from primary coil. Fast rectifier inside the hollow shaft and DC filter provides the transferred DC power to field terminals in the rotor. It has been verified that rotor power can be varied linearly with linear variation in input DC power with the highest efficiency at the resonant frequency. Available power to the rotor remains invariable with rotational speed and angle, which is a necessary requirement for rotor field. DC voltage on the rotor terminals can be effectively controlled during standstill as well as during rotation at any speed.

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Nalli, Rajesh, K. Subbarao, M. Ramamoorthy, and M. Kiran Kumar. "A Novel Sensorless Controlling Technique of a 3-Phase Brushless DC Motor for Industrial Application." Journal of Computational and Theoretical Nanoscience 16, no. 12 (December 1, 2019): 5032–41. http://dx.doi.org/10.1166/jctn.2019.8560.

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This paper provides the novel sensorless control technique of a 3-phase BLDC motor. The introduction to the conventional sensorless techniques like Back emf detection, free-wheeling diode detection technique, back emf third harmonic detection techniques are discussed. Conventional sensorless technique has its drawbacks like high frequency noise, having more number of switches in free-wheeling diode detection method causes more switching losses. Wrong estimation rotor position in back emf zero detection technique where the floating phase back emf is consider for commutation estimation. In all the above discussed methods the back emf estimation is a speed dependent function, whereas in proposed controlling technique the flux linkage calculation is not a speed (ω) dependent function. So, that the accuracy of rotor position prediction will be better than conventional methods. The analysis of proposed technique is compared with conventional sensor based controlling techniques to validate the accuracy. The proposed technique implemented using MATLAB/SIMULINK software.

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Jeong, Jae Hoon, Kyoung Chul Min, and Han Wook Cho. "Reduction of Cogging Torque and Torque Ripple in Exterior Rotor Type BLDC Motor for EV/HEV Battery Cooling System." Applied Mechanics and Materials 763 (May 2015): 86–91. http://dx.doi.org/10.4028/www.scientific.net/amm.763.86.

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In this study, reduction of cogging torque and torque ripple for an exterior rotor type brushless dc (BLDC) motor for an automotive cooling device were proposed and a design concept for a fan motor for use in a battery pack mounted in an electric vehicle/hybrid electric vehicle (EV/HEV) was presented. Various pole/slot combinations and permanent magnet (PM) pole arc ratios were compared using finite element analysis (FEA), and the PM overhang ratio necessary to sufficiently increase the magnetic flux that enabled coil linkage was determined through 3D FEA. Based on the analysis results, an actual model was produced, experimentally verified, and used to validate the proposed design model.

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Wang, Xiaoyuan, Xiaoguang Wang, and Tao Fu. "Direct Self-Control Strategy for Axial Flux Ironless Permanent Magnet Synchronous Motors Based on Duty Ratio Control." International Journal of Advanced Pervasive and Ubiquitous Computing 5, no. 3 (July 2013): 23–37. http://dx.doi.org/10.4018/ijapuc.2013070103.

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Axial Flux Ironless permanent magnetic synchronous motor (AFIPMSM) is a new permanent magnetic motor. It has many advantages, such as high torque-to-weight ratio, good efficiency, no cogging torque, and the sinusoidal back EMF. It gradually becomes the good choice in drive system. However, the small armature winding inductance causes the current is not continued with the PWM control based on VSI, it is a fatal shortcoming of the motor on the control. To solve this problem, a novel automatic control method based on a modified dc-dc converter is used to regulate the current. And the torque control rule is proposed to ensure the tracking of the torque-producing current of the AFIPMSM to the commanded value according to the motor rotor position under all operating conditions. Simulation and experimental results confirm the validity of the proposed control method.

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Li, Quanwu, Manfeng Dou, Bo Tan, Haitao Zhang, and Dongdong Zhao. "Electromagnetic-Thermal Integrated Design Optimization for Hypersonic Vehicle Short-Time Duty PM Brushless DC Motor." International Journal of Aerospace Engineering 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/9725416.

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High reliability is required for the permanent magnet brushless DC motor (PM-BLDCM) in an electrical pump of hypersonic vehicle. The PM-BLDCM is a short-time duty motor with high-power-density. Since thermal equilibrium is not reached for the PM-BLDCM, the temperature distribution is not uniform and there is a risk of local overheating. The winding is a main heat source and its insulation is thermally sensitive, so reducing the winding temperature rise is the key to the improvement of the reliability. In order to reduce the winding temperature rise, an electromagnetic-thermal integrated design optimization method is proposed. The method is based on electromagnetic analysis and thermal transient analysis. The requirements and constraints of electromagnetic and thermal design are considered in this method. The split ratio and the maximum flux density in stator lamination, which are highly relevant to the windings temperature rise, are optimized analytically. The analytical results are verified by finite element analysis (FEA) and experiments. The maximum error between the analytical and the FEA results is 4%. The errors between the analytical and measured windings temperature rise are less than 8%. It can be proved that the method can obtain the optimal design accurately to reduce the winding temperature rise.

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Wang, Song Lin, and Shun Yi Xie. "A Novel Direct Torque Control of Fault Tolerant Three-Phase Four-Switch Inverter Brushless DC Motor." Applied Mechanics and Materials 644-650 (September 2014): 697–700. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.697.

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Because of the reliability requirement for the motor driving system in practical application, and based on analysis of the working principle of a fault-tolerant inverter, the direct torque control (DTC) for brushless direct current motor (BLDCM) fed by four-switch three-phases inverter (FSTPI) when the inverter faults is widely studied. According to the characteristics of (BLDCM), the voltage space vector for BLDCM-DTC fed by FSTPI is redefined due to the dissymmetric voltage space vector of TPFSI. To reduce the number of power device switching, the implementation method of four-switch SVPWM with seven-segment scheme was presented. Therefore, the system model is established as a result of the detailed analysis of voltage space vector and the control principle of the BLDCM-DTC without flux linkage observation fed by FSTPI. The validity and effectiveness of the proposed scheme have been verified through the simulation and experimental results.

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Jian-Long Kuo, Zen-Shan Chang, and Tzu-Shuang Fang. "Design of Multisectional Driver and Field-Oriented Modeling of the Axial-Flux Linear Brushless Motor for Railway Transportations." IEEE Transactions on Industrial Electronics 54, no. 5 (October 2007): 2374–88. http://dx.doi.org/10.1109/tie.2007.900321.

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