A Novel Wireless Permanent Magnet Stepper Motor with Transmitter-Side Speed and Position Control

• Published in: 2024 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) pp. 1 - 5
• Main Authors: Liu, Yuxin, Dong, Zhiping, Huang, Rundong, Liu, Chunhua
• Format: Conference Proceeding
• Language: English
• Published: IEEE 21.08.2024
• Subjects: Magnetic sensors; Motors; Multi-channel WPT; Permanent Magnet Stepper Motor; Position control; Torque; Transmitters; Wireless communication; Wireless Motor; Wireless Power Transfer (WPT); Wireless sensor networks
• DOI: 10.1109/APWCS61586.2024.10679295

Wireless motors effectively convert electrical energy to mechanical energy in confined spaces, offering waterproof and dustproof features with widespread interest. However, the existing transmitter-side controlled wireless motors, reliant on position sensors and communication modules, struggle with precise position control due to natural physical isolation. This paper introduces a wireless permanent magnet stepper motor system that achieves speed and position control on the transmitter side without the need for position sensors or communication modules. By decoupling the dual-channel wireless power transmission circuit, controllable AC winding currents are realized on the transmitter side, establishing a rotating rotor magnetic field. Full-step and half-step working modes, based on current vector control, enable precise speed and position control of wireless stepper motors. Experimental validation on a wireless stepper motor platform, with a 1.8° step angle and 8.5\ \mathrm{N}\cdot \mathrm{m} rated torque, confirms the effectiveness of the proposed system.