Exterior vs. interior rotors in robotic brushless motors
Exterior vs. interior rotors in robotic brushless motors
复制标题
机器人无刷电机中的外部转子与内部转子
DOI：
10.1109/icra.2011.5979940
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
J. F. Schorsch
中科院分区：
文献类型：
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作者：
J. Sensinger;S. D. Clark;J. F. Schorsch
Many robotic actuators must generate high torques and accelerations. Exterior-rotor brushless motors seem better suited for these tasks than conventional interior-rotor brushless motors. Models of these two motor types were used to calculate benchmarks and evaluate motor performance in simulated tasks for different motor geometries. Exterior-rotor motors had higher motor constants and efficiency, but lower rated power compared with interior-rotor motors. They required less energy to perform typical robotic tasks. Four exterior-rotor motors were fabricated and compared with manufacturing data from the best existing brushless DC motors. The exterior-rotor motors had more than a 250% increase in stall torque density compared with the best known brushless DC motor (RoboDrive) and more than a 740% increase in stall torque density compared with more common motors such as those produced by MicroMo and Maxon. These exterior-rotor motors appear promising for robotic applications.
