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Cited by 38 publications
(9 citation statements)
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“…Finally, the convection between the stator end region and the internal air and between the rotor end region and the internal air of the enclosed motor is considered as the heat transfer coefficients, h c_s and h c_r in (11) and (12), where ω (rad/s) and r ro (m) correspondingly represent the angular velocity and radius of the rotor [31]. In the case of a motor with the OS, it is required to use the modified heat transfer coefficient using (13) and (14) proposed in earlier work [23,28] h c_s = 6.5 + 5.25 0.6 (ωr ro )…”
Section: Convection Heat Transfermentioning
confidence: 99%
See 1 more Smart Citation
“…Finally, the convection between the stator end region and the internal air and between the rotor end region and the internal air of the enclosed motor is considered as the heat transfer coefficients, h c_s and h c_r in (11) and (12), where ω (rad/s) and r ro (m) correspondingly represent the angular velocity and radius of the rotor [31]. In the case of a motor with the OS, it is required to use the modified heat transfer coefficient using (13) and (14) proposed in earlier work [23,28] h c_s = 6.5 + 5.25 0.6 (ωr ro )…”
Section: Convection Heat Transfermentioning
confidence: 99%
“…In general, a robot joint motor is designed as a surface-mounted permanent magnet (SPM) motor, as this type of motor offers the advantages of simple construction, manufacturing, and control. To enhance the torque density of a permanent magnet (PM) motor, a rotor overhang structure (OS), which is a simple and effective way to increase the flux linkage, is used in various types of PM motors such as SPM motors [5][6][7][8][9], interior PM motors [10], and spoketype PM motors [11,12]. The OS means that the axial length of the rotor is designed to be longer than the stator core in order to utilise the extra space of both sides of the rotor.…”
Section: Introductionmentioning
confidence: 99%
“…Rotor overhang is another design aspect, which serves to increase the torque performances of a SPM motor by utilising the free space resulting from the end winding of the stator. By designing the rotor axis length to be longer than the stator axis length, the performance of the SPM motor can be enhanced without an expansion of the motor space [23][24][25][26][27][28][29][30]. Distributedwinding motors are advantageous because they have higher endwindings and thus more free space than concentrated-winding motors [24].…”
Section: Introductionmentioning
confidence: 99%
“…Distributedwinding motors are advantageous because they have higher endwindings and thus more free space than concentrated-winding motors [24]. In addition to SPM motors, rotor overhangs can be applied to other types of rotors [25,30]. However, the length of the rotor overhang is limited according to the axial length of the end winding.…”
Section: Introductionmentioning
confidence: 99%
“…The SA module may help simplify the system structure, improve reliability, and create a compact system [2]. Researchers are interested in the permanent magnet synchronous motor (PMSM) design for SA module to achieve high efficiency and high power density, which can be designed using optimal design techniques or the PM overhang to generate more magnetic flux in the air-gap [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Most PMSMs use a PM overhang structure in the rotor to operate the Hall effect sensor for cost-saving and a simplified motor structure [4].…”
Section: Introductionmentioning
confidence: 99%