• Home|About JOPS|Editorial Board| Ethics Statement|Indexed-in|Contact us|Peer Review|Chinese
Latest Papers more>>
YANG Jingjing,CHEN Wei,XIE Wenyan.Research on Wireless Power Transmission System Based on Self-excited Push-pull Oscillator[J].JOURNAL OF POWER SUPPLY,2021,19(2):142-152
Research on Wireless Power Transmission System Based on Self-excited Push-pull Oscillator
Received:December 27, 2019  Revised:December 06, 2020
View Full Text  View/Add Comment  Download reader
DOI:10.13234/j.issn.2095-2805.2021.2.142
Keywords:wireless power transmission (WPT)  magnetically coupled resonant  self-excited oscillator  frequency selfadaptation
Fund Project:National Natural Science Foundation of China (51777036); Fujian province education and research project for young and mid dle-aged teachers (science and technology) (JT180016; JT180017)
        
AuthorInstitutionEmail
YANG Jingjing College of Electrical Engineering and Automation, Fuzhou University, Fuzhou , China
CHEN Wei College of Electrical Engineering and Automation, Fuzhou University, Fuzhou , China chw@fzu.edu.cn
XIE Wenyan College of Electrical Engineering and Automation, Fuzhou University, Fuzhou , China
Hits: 80
Download times: 88
Abstract:
      Based on the detailed analysis of the principle for a self-excited push-pull oscillation circuit, an equivalent circuit model of the system was established by studying the voltage and current characteristics of the transmitting coil. In addition, the system performance was verified by theoretical calculation and simulation analysis. Meanwhile, an self-excited push-pull wireless power transmission (WPT) system was applied to the variable-distance wireless charging of lithium batteries at sensor nodes. Finally, a 2-coil system was built to verify the system's frequency self-adaption capability. This system can output stable power and maintain stable efficiency when the coupling coefficient was within a certain range. When the distance between coils varied from 1 to 4 cm, the self-excited push-pull wireless charging system can provide steady charging current of 500 mA for lithium battery.
Close