Soft Switching Based Design of a Single-Stage Wireless DC Motor Drive System for Typical Mechanical Loads

This paper introduces a wireless DC motor drive system designed to overcome wire cut issues during rotation. The system employs a dual-bridge structure that integrates power supply and motor control functions, eliminating the need for a separate motor drive inverter. A control strategy is proposed,...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2024-11, Vol.60 (6), p.8976-8987
Main Authors: Chen, Xin Felix, Tse, Chi K., Jiang, Chaoqiang, Lai, Ching-Ming
Format: Article
Language:English
Subjects:
Control systems
DC motors
Inverters
Mechanical loads
Motor drives
Motors
secondary-side control
single-stage
Soft switching
Wireless communication
wireless motor drive
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Summary:This paper introduces a wireless DC motor drive system designed to overcome wire cut issues during rotation. The system employs a dual-bridge structure that integrates power supply and motor control functions, eliminating the need for a separate motor drive inverter. A control strategy is proposed, which involves a fixed primary-side frequency and duty cycle, along with a fixed secondary-side off-time. This strategy effectively eliminates the requirement for communication between the primary and secondary sides, while ensuring soft switching for active rectifiers across various load conditions. In addition, the paper investigates the impact of frequency deviation on the inverter's soft switching behavior, establishing a parameter boundary for achieving soft switching. By considering the speed-torque relationship for different mechanical loads, the paper offers valuable guidelines for designing single-stage wireless DC motor drive systems. To validate the analysis, a 200 W prototype is constructed, and its performance is evaluated. The prototype achieves a maximum DC/DC efficiency of 96.56%, providing practical evidence in support of the presented findings.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2024.3429457