Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-22T20:02:08.186Z Has data issue: false hasContentIssue false
  • English
  • Français

Study of coupling configurations of capacitive power transfer system with four metal plates

Published online by Cambridge University Press:  15 November 2019

Qi Zhu Open the ORCID record for Qi Zhu [Opens in a new window] ,
Shaoge Zang Open the ORCID record for Shaoge Zang [Opens in a new window] ,
Lixiang Jackie Zou ,
Guanguan Zhang ,
Mei Su  and
Aiguo Patrick Hu Open the ORCID record for Aiguo Patrick Hu [Opens in a new window]
Qi Zhu
Affiliation:
School of Automation, Central South University, Changsha, China Hunan Provincial Key Laboratory of Power Electronics Equipment and Grid, Changsha, China
Shaoge Zang
Affiliation:
Department of Electrical, Computer, and Software Engineering, the University of Auckland, Auckland, New Zealand
Lixiang Jackie Zou
Affiliation:
Department of Electrical, Computer, and Software Engineering, the University of Auckland, Auckland, New Zealand
Guanguan Zhang*
Affiliation:
School of Control Science and Engineering, Shandong University, Jinan, China
Mei Su
Affiliation:
School of Automation, Central South University, Changsha, China Hunan Provincial Key Laboratory of Power Electronics Equipment and Grid, Changsha, China
Aiguo Patrick Hu
Affiliation:
Department of Electrical, Computer, and Software Engineering, the University of Auckland, Auckland, New Zealand
*
Author for correspondence: Guanguan Zhang, School of Control Science and Engineering, Shandong University, Jinan, China. E-mail: [email protected]
Get access

Abstract

In this paper, possible coupling configurations of a four-plate capacitive power transfer system are studied by varying the combinations of its input and output ports. A voltage source is applied between two of the four plates, and a load is connected to the other two to form different circuit topologies. A mathematical model based on a 4 × 4 mutual capacitance matrix is established for equidistantly placed four identical metal plates. Based on the proposed model, four separate circuit topologies are identified and analysed in detail and described in a general form. The electric field distributions of the coupling configurations are simulated by ANSYS Maxwell. The theoretical modeling and analysis are then verified by a practical system, in which four aluminum plates of 300 mm × 300 mm are used and placed with a gap of 10 mm between adjacent plates. The experimental results show that the measured output voltage and power under the four coupling configurations are in good agreement with the theoretical results. It has found that the voltage gain is the highest when the two inner plates are connected to the source, and this coupling configuration also has the lowest leakage electric field.

Keywords

Capacitive power transfercoupling configurationelectric field distributionfour metal platesmutual capacitance matrix
Type
Research Article
Information
Wireless Power Transfer , Volume 6 , Issue 2 , September 2019 , pp. 97 - 112
Check for updates
Copyright
Copyright © Cambridge University Press 2019

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Liu, C (2011) Fundamental Study on Capacitive Coupled Power Transfer Technology (Ph.D. thesis). Department of Electrical and Computer Engineering, University of Auckland, Auckland.Google Scholar
2.Wilson, WR, Robertson, LGC, Zwi, JL and Dawson, BV (1993) Health Effects of Sinusoidal 10 kHz Magnetic Fields, 20 December 1993.Google Scholar
3.Culurciello, E and Andreou, AG (2006) Capacitive inter-chip data and power transfer for 3-D VLSI. IEEE Transactions on Circuits and Systems II: Express Briefs 53, 1348–1352.Google Scholar
4.Sodagar, AM and Amiri, P (2009) Capacitive coupling for power and data telemetry to implantable biomedical microsystems. In 2009 4th International IEEE/EMBS Conference on Neural Engineering, pp. 411–414.CrossRefGoogle Scholar
5.Jegadeesan, R, Agarwal, K, Guo, Y, Yen, S and Thakor, NV (2017) Wireless power delivery to flexible subcutaneous implants using capacitive coupling. IEEE Transactions on Microwave Theory and Techniques 65, 280–292.CrossRefGoogle Scholar
6.Mostafa, TM, Muharam, A and Hattori, R (2017) Wireless battery charging system for drones via capacitive power transfer. In 2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW), pp. 1–6.Google Scholar
7.Hu, AP, Liu, C and Li, H (2008) A novel contactless battery charging system for soccer playing robot. In 2008 15th International Conference on Mechatronics and Machine Vision in Practice, pp. 646–650.Google Scholar
8.Ludois, DC, Reed, JK and Hanson, K (2012) Capacitive power transfer for rotor field current in synchronous machines. IEEE Transactions on Power Electronics 27, 4638–4645.CrossRefGoogle Scholar
9.Ludois, DC, Erickson, MJ and Reed, JK (2014) Aerodynamic fluid bearings for translational and rotating capacitors in noncontact capacitive power transfer systems. IEEE Transactions on Industry Applications 50, 1025–1033.Google Scholar
10.Ludois, DC and Reed, JK (2015) Brushless mitigation of bearing currents in electric machines via capacitively coupled shunting. IEEE Transactions on Industry Applications 51, 1025–1033.Google Scholar
11.Lu, F, Zhang, H, Hofmann, H and Mi, C (2015) A double-sided LCLC-compensated capacitive power transfer system for electric vehicle charging. IEEE Transactions on Power Electronics 30, 6011–6014.Google Scholar
12.Zhang, H, Lu, F, Hofmann, H, Liu, W and Mi, C (2016) A four-plate compact capacitive coupler design and LCL-compensated topology for capacitive power transfer in electric vehicle charging application. IEEE Transactions on Power Electronics 31, 8541–8551.Google Scholar
13.Lu, F (2017) High Power Capacitive Power Transfer for Electric Vehicle Charging Applications (Ph.D. thesis). University of Michigan, Ann Arbor, MI, USA.Google Scholar
14.Lu, F, Zhang, H and Mi, C (2018) A two-plate capacitive wireless power transfer system for electric vehicle charging applications. IEEE Transactions on Power Electronics 33, 964–969.CrossRefGoogle Scholar
15.Liu, C, Hu, AP and Nair, N-KC (2011) Modelling and analysis of a capacitively coupled contactless power transfer system. IET Power Electronics 4, 808–815.Google Scholar
16.Liu, C and Hu, AP (2009) Steady state analysis of a capacitively coupled contactless power transfer system. In 2009 IEEE Energy Conversion Congress and Exposition, pp. 3233–3238.Google Scholar
17.Liu, C and Hu, AP (2009) Power flow control of a capacitively coupled contactless power transfer system. In 2009 35th Annual Conference of IEEE Industrial Electronics, pp. 743–747.Google Scholar
18.Liu, C, Hu, AP, Nair, N-KC and Covic, GA (2010) 2-D alignment analysis of capacitively coupled contactless power transfer systems. In 2010 IEEE Energy Conversion Congress and Exposition, pp. 652–657.Google Scholar
19.Liu, C, Hu, AP and Budhia, M (2010) A generalized coupling model for Capacitive Power Transfer systems. In IECON 2010 – 36th Annual Conference on IEEE Industrial Electronics Society, pp. 274–279.Google Scholar
20.Huang, L, Hu, AP and Swain, AK (2014) A resonant compensation method for improving the performance of capacitively coupled power transfer system. In 2014 IEEE Energy Conversion Congress and Exposition (ECCE), pp. 870–875.Google Scholar
21.Huang, L, Hu, AP, Swain, AK and Su, Y (2016) Z-Impedance compensation for wireless power transfer based on electric field. IEEE Transactions on Power Electronics 31, 7556–7563.Google Scholar
22.Huang, L, Hu, AP, Swain, AK and Su, Y (2016) Accurate steady-state modeling of capacitive-coupling interface of capacitive power transfer systems with cross-coupling. Wireless Power Transfer 3, 53–62.CrossRefGoogle Scholar
23.Huang, L and Hu, AP (2015) Defining the mutual coupling of capacitive power transfer for wireless power transfer. Electronics Letters 51, 1806–1807.CrossRefGoogle Scholar
24.Huang, L, Hu, AP, Swain, AK and Dai, X (2014) Comparison of two high frequency converters for capacitive power transfer. In 2014 IEEE Energy Conversion Congress and Exposition (ECCE), pp. 5437–5443.Google Scholar
25.Huang, L, Hu, AP, Swain, AK, Kim, S and Ren, Y (2013) An overview of capacitively coupled power transfer — A new contactless power transfer solution. In 2013 IEEE 8th Conference on Industrial Electronics and Applications (ICIEA), pp. 461–465.Google Scholar
26.Lu, F, Zhang, H, Hofmann, H and Mi, C (2018) A double-sided LC compensation circuit for loosely-coupled capacitive power transfer. IEEE Transactions on Power Electronics 33, 1633–1643.Google Scholar
27.Liu, C, Hu, AP and Nair, NC (2009) Coupling study of a rotary Capacitive Power Transfer system. 2009 IEEE International Conference on Industrial Technology, Gippsland, VIC, pp. 1–6.Google Scholar
28.Zang, S, Lu, K, Nguang, SK and Sun, W (2019) Robust H∞ output feedback control of a rotary capacitive power transfer system. IEEE Access 7, 113452–113462.Google Scholar