Power Optimization Method of Magnetic Coupling Resonant Wireless Energy Transmission System

  • Jianpo LiEmail author
  • Yang Lu
  • Songjun Pan
  • Ziqi Dong
  • Baochun Mu
  • Fuxin Liu
  • Cong Zheng
Conference paper
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 109)


Magnetic coupled resonant wireless energy transmission technology is a way of wireless energy transmission. In the field of magnetic coupled resonant wireless energy transmission system, the distance between the transmitting coil and the receiving coil is too large and the position is fixed. The system is in the state of under coupling, which causes the system output power to be too small. The case of adding the relay coil between the transmitting coil and the receiving coil is proposed to improve the output power. Considering that the introduction of the relay coil may make the system’s charging state transition from under coupling state to over coupling state directly, the frequency splitting phenomenon is suppressed by adjusting the position of the relay coil, the angle of the rotating relay coil, the output power before and after the measures is changed. The simulation experiment shows that the measures of increasing the relay coil and taking suppression of frequency division to restrain the frequency can greatly improve the output power.


Wireless power transmission Magnetic coupling resonance Relay coil Suppression of frequency splitting 



This work was supported by National Natural Science Foundation of China (No. 61501106), Science and Technology Foundation of Jilin Province (No. 20180101039JC and JJKH20170102KJ).


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Jianpo Li
    • 1
    Email author
  • Yang Lu
    • 1
  • Songjun Pan
    • 2
  • Ziqi Dong
    • 3
  • Baochun Mu
    • 4
  • Fuxin Liu
    • 2
  • Cong Zheng
    • 2
  1. 1.School of Computer ScienceNortheast Electric Power UniversityJilinChina
  2. 2.Global Energy Interconnection Group Co., Ltd.BeijingChina
  3. 3.State Grid Information & Telecommunication BranchBeijingChina
  4. 4.Beijing China-Power Information Technology Co., Ltd.BeijingChina

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