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Optimal Design of Dynamic Wireless Power Transmitting Array Module in Random Position of Robot |
Xue Ming1,2, Yang Qingxin1, Zhang Pengcheng1, Guo Jianwu2, Hou Hu2 |
1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology Tianjin 300401 China; 2. Tianjin Key Laboratory of Electrical Equipment Intelligent Control Tianjin Polytechnic University Tianjin 300387 China |
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Abstract Uninterrupted powering is the key to achieving intelligent swarmed or cargo-sorting robots. The paper proposes an optimized design for the transmitting array module based on the analysis of the effective coupling area, which meets the real-time power requirements of the robot at any position in the working area. Firstly, the paper analyzes the coupling situation of the transmitting and receiving coils during the robot operation, and the analytical expressions of the received power. Besides, a method defining the effective coupling area based on the robot's rated power demand is proposed. The effective coupling area under different excitation modes is quantitatively expressed using finite element analysis (FEA). Furthermore, the spatial structure arrangement of the transmitting array module and the corresponding coil excitation and conduction working mode are obtained. Finally, a scaled-down dynamic wireless power supply prototype based on 2×2 array transmitter modules is built to verify the effectiveness of dynamic wireless power supply for robots under any position.
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Received: 11 October 2021
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