Research on Tuned Stable Transmission Power Radio Energy Transmission
The distance between the transmitter and receiver has a significant impact on the energy transmission performance of the wireless fuze setting system.To address this issue,the reflection impedance theory was ap-plied to simplify the circuit model of a magnetic resonance coupled wireless tuning system.Many factors that af-fected the power transmission of wireless installation systems,such as load changes,coil offset,frequency split-ting,etc.,which were essentially caused by impedance mismatches leading to output power fluctuations.The relationship between resonant frequency and coupling coefficient was derived under maximum power transmis-sion conditions based on impedance matching principle,and a tuned control strategy was proposed.The basic principle was to establish two transfer power coupling coefficient curves for two sets of resonant capacitors,and changed the resonant capacitor when the coupling coefficient changes,so that the system operated in the top area of the transfer power coupling coefficient curve for tuned compensation.The experimental results showed that the system could maintain output power fluctuations of less than 14.5％within the coupling coefficient range of 0.11～0.39.
万方数据
维普
