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Analysis and Design of Four-Plate Capacitive Wireless Power Transfer System for Undersea Applications

查看全文 作　　者：Lei [1]Yang;Yuanqi [1]Zhang;Xiaojie [1]Li;Jiale [1]Jian;Zhe [1]Wang;Jingjing [2]Huang;Li [1]Ma;Xiangqian [1]Tong 高影响力作者 机构地区：[1]School of Electrical Enginerring,Xi’an Technology of University,Xi’an,710048,China;[2]the School of Electronic and Information Engineering,Xi’an Jiaotong University,Xi’an 710049,China高影响力机构 出　　处：《CES Transactions on Electrical Machines and Systems》索引2021年第5卷第3期,共10页高影响力期刊 基　　金：supported by the National Natural Science Foundation of China under grant no.52107205;China Postdoctoral Science Foundation under grant no.2018M643700;Scientific Research Project of Education Department of Shaanxi Province under grant no.18JS080;Postdoctoral Research Program of Shaanxi Province under grant no.2018BSHYDZZ28;Basic Research Project of Natural Science of Shaanxi Province under grant no.2020JQ-623. 摘　　要：This paper presents a four-plate undersea capacitive wireless power transfer(CPT)system for underwater applications such as autonomous underwater vehicles(AUVs).Generally,a CPT system transfers the power based on electric fields.The complex resonant compensation networks are used to make the CPT system work in the resonant condition.The resonant voltage is always very high.It will be a big challenge to the human safety.In this paper,a virtual electrons periodic reciprocating flow theory is proposed for the CPT system.In one switching cycle,the electrons firstly flow in the forward direction through the forward path and then flow in the inverse direction through the inverse path.The CPT system has been deeply studied with the vacuum dielectric or the air dielectric.However,for the CPT system,there are few papers to show the underwater application.In this paper,an undersea four-plate CPT system is designed and studied in the underwater condition.The two coupling capacitors and other elements of the CPT system could build a closed-loop path.A small value inductor is adapted as a resonant compensation network for the four-plate CPT system.The DC voltage is inverted to the AC voltage in the primary side with the single-phase full-bridge inverter.The resonant voltage is rectified to the DC voltage in the secondary side with the single-phase full-bridge diode rectifier.A 100 W power level CPT system is constructed to verify the theory analysis and the calculation.The theory analysis is verified by the simulated and experimental results.The stable output voltage and load power are achieved in this paper. 关 键 词：Wireless power transfer system capacitive underwater applications autonomous underwater vehicles(AUVs)
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