[1] Tan linlin, Huang Xueliang, Zhou Yalong, Zhao Junfeng, et al. Optimal control of wireless energy transfer systemvia decreasing frequency [J]. Journal of Southeast University (English Edition), 2013, 29 (3): 259-263. [doi:10.3969/j.issn.1003-7985.2013.03.006]
Copy
Optimal control of wireless energy transfer systemvia decreasing frequency(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 29
- Issue:
- 2013 3
- Page:
- 259-263
- Research Field:
- Electrical Engineering
- Publishing date:
- 2013-09-20
Info
- Title:
- Optimal control of wireless energy transfer systemvia decreasing frequency
- Author(s):
- Tan linlin; Huang Xueliang; Zhou Yalong; Zhao Junfeng
- School of Electrical Engineering, Southeast University, Nanjing 210096, China
- PACS:
- TM133
- DOI:
- 10.3969/j.issn.1003-7985.2013.03.006
- Abstract:
- In order to solve the multiple power extreme value point problem caused by system frequency splitting during wireless energy transmission at short distances, a transmission model of the system is established. With the comprehensive consideration of the resonance frequency, load parameters and the coupling between coils, the internal factors of frequency splitting and boundary conditions are discussed. The results show that under the condition of the fixed load, the higher the natural resonance frequency, the easier the frequency splitting. As the frequency splitting occurs, the frequency of the maximum power transfer is no longer with the natural resonance frequency, which can make the system unstable and the transfer power more difficult to control. Therefore, a decreasing-frequency method is proposed to avoid the system frequency splitting. And decreasing the system resonance frequency can make the system successfully withdraw the frequency splitting area at a short-distance range. Under the fixed load condition, the transmission power of the system can be increased by 400%, and the transmission efficiency is reduced by only 14%, which greatly improves the transmission performance of the system.
References:
[1] Kurs A, Karalis A, Moffatt R, et al. Wireless power transmission via strongly coupled magnetic resonances[J]. Science Express, 2007, 317(5834):83-86.
[2] RamRakhyani A K, Mirabbasi S, Chiao M. Design and optimization of resonance-based efficient wireless power delivery systems for biomedical implants[J]. IEEE Trans Biomed Circuits Syst, 2011, 5(1):48-63.
[3] Tak Y D, Park J M, Nam S W. Mode-based analysis of resonant characteristics for near-field coupled small antennas[J]. IEEE Antennas Wireless Propag Lett, 2009, 8(11):1238-1241.
[4] Sample A P, Meyer D A, Smith J R. Analysis, experimental results, and range adaptation of magnetically coupled resonators for wireless power transfer [J]. IEEE Trans Ind Electron, 2011, 58(2):544-554.
[5] Cheon S, Kim Y, Kang S, et al. Circuit model based analysis of a wireless energy transfer system via coupled magnetic resonances[J]. IEEE Trans Ind Electron, 2011, 58(7):2906-2914.
[6] Kurs A, Moffatt R, Soljacic M. Simultaneous mid-range power transfer to multiple devices[J]. Appl Phys Lett, 2010, 96(4):044102-1-044102-3.
[7] Casanova J J, Low Z N, Lin J S. A loosely coupled planar wireless power system for multiple receivers[J]. IEEE Trans Ind Electron, 2009, 56(8):3060-3068.
[8] Maxwell J C. A treatise on electricity and magnetism[M]. New York: Dover, 1954.
[9] Fu Wenzhen, Zhang Bo. Maximum efficiency analysis and design of self-resonance coupling coils for wireless power transmission system[J]. Proceedings of the CSEE, 2009, 29(18):21-26.(in Chinese)
[10] Tan Linlin, Huang Xueliang, Huang Hui. Transfer efficiency optimal control of magnetic resonance coupled system of wireless power transfer based on frequency control[J]. Science in China Series E: Engineering and Materials Science, 2011, 54(6): 1428-143.
Memo
- Memo:
-
Biographies: Tan Linlin(1986—), male, graduate; Huang Xueliang(corresponding author), male, doctor, professor, xlhuang@seu.edu.cn.
Foundation items: Scholarship Award for Excellent Doctoral Student granted by Ministry of Education of China, the Scientific Innovation Research of College Graduates in Jiangsu Province(No.CXZZ11-0150), the National Natural Science Foundation of China(No.51177011), the National High Technology Research and Development Program of China(863 Program)(No.2012AA050210).
Citation: Tan linlin, Huang Xueliang, Zhou Yalong, et al.Optimal control of wireless energy transfer system via decreasing frequency[J].Journal of Southeast University(English Edition), 2013, 29(3):259-263.[doi:10.3969/j.issn.1003-7985.2013.03.006]