作者：XIAOWeihao,HUANGXuhong, 单位：SchoolofElectrical,ElectricalandPhysics,FujianUniversityofTechnology 本文刊于： 《Instrumentation》 2022年第01期
关键词:
ParityTimeSymmetry WirelessEnergyTransfeKeywords
Parity Time Symmetry, Wireless Energy Transfer, S-P Type Structure, Coupled Mode Theory,
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摘要
The wireless power transmission system based on nonlinear parity time symmetry is a robust system that can maintain high-efficiency transmission at a certain distance. Parity-Time Symmetry(PT symmetry) wireless power transfer system, due to its insensitivity to the position of the coupled resonant coil over a large range, can carry out constant power transfer to the load, and through coupled mode theory The PT symmetrical wireless power transmission circuit with S-P structure is analyzed, and the system has different transmission efficiencies in different coupling intervals, and the transmission effect of the structure at different distances is studied with the change of coupling coefficient. Then, the simulation is carried out by MATLAB and origin software. The final results show that the transmission efficiency does not change with the coupling coefficient in the strong coupling region and can maintain high-efficiency transmission. In the weak coupling region, the coupling coefficient has a great influence on the transmission efficiency of the system.
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