Projects:2016s1-190 Inductive Power Transfer - Revision history

A1658677: /* Introduction */

2016-10-25T16:07:56Z

‎Introduction

A1658677: /* Topic */

2016-10-25T16:06:37Z

‎Topic

A1658677: /* Supervisors Info */

2016-10-25T16:05:26Z

‎Supervisors Info

A1658677: /* Practical outcome */

2016-10-25T16:03:55Z

‎Practical outcome

A1658677: /* Practical outcome */

2016-10-25T16:03:18Z

‎Practical outcome

A1658677: /* Practical outcome */

2016-10-25T16:00:48Z

‎Practical outcome

A1658677: /* References */

2016-10-25T15:53:17Z

‎References

A1658677: /* Results */

2016-10-25T15:52:24Z

‎Results

A1658677: /* Results */

2016-10-25T15:49:24Z

‎Results

A1658677: /* Results */

2016-10-25T15:48:05Z

‎Results

@@ Line 19: / Line 19: @@
 * Transferring 5W with over 80% efficiency at given distance of 500 mm between transmitter and receiver coils
-[[File:Example233.png]]
+[[File:Example233.png|400px|thumb|center|all text]]
 *Design of a charging surface of a standard desk, which is able to transfer 2W at least 60% efficiency
@@ Line 26: / Line 26: @@
 The mainstream of power delivery, nowadays, is to advance the wireless power transmission technique. Wireless charging technology is a major theme at Mobile World Congress (MWC) in 2015. From the commercial perspective, an innovative, advanced and efficient product means more profits for manufacturers. Some well-known companies have invested in development of a better charging technique, such as Apple and Samsung. Therefore, one reason for conducting this project is that it is probably a well-paid task, and meanwhile is closely related to the current investigating trend in the technical field of power transfer.
 Apart from the commercial view, a main reason can be found at users’ perspective. The wireless charging system produced by this project might offer users an impressive experience. General speaking, convenience shall be primarily presented. Firstly, there are two limitations on current wireless charging products. Some light products can only charge a single device at a time. Or some cumbersome chargers can charge multi-devices at a time but they require users to place all devices on a charging pad [6]. In the project, overcoming above drawbacks should be taken into account while designing a product. Additionally, the wireless charging system is able to be a uniform charger for all different devices charging. Technically, it allows the minimum of the charging cable use [7]. Furthermore, using the system would not be limited in some particular environment. Devices can be charged even under very dirty surroundings via the wireless charging system.
 ='''Technology Background'''=
 ==Methods used in inductive power transfer (IPT) field==

@@ Line 18: / Line 18: @@
 == Topic ==
 * Transferring 5W with over 80% efficiency at given distance of 500 mm between transmitter and receiver coils
 *Design of a charging surface of a standard desk, which is able to transfer 2W at least 60% efficiency
 ==Motivation==
 The mainstream of power delivery, nowadays, is to advance the wireless power transmission technique. Wireless charging technology is a major theme at Mobile World Congress (MWC) in 2015. From the commercial perspective, an innovative, advanced and efficient product means more profits for manufacturers. Some well-known companies have invested in development of a better charging technique, such as Apple and Samsung. Therefore, one reason for conducting this project is that it is probably a well-paid task, and meanwhile is closely related to the current investigating trend in the technical field of power transfer.

@@ Line 3: / Line 3: @@
 == Supervisors Info ==
-*Supervisor: [[Prof. Wen L Soong]]
+*Supervisor: [[Dr. Wen L Soong]]
 *Advisor: [[Dr. Andrew Allison]]

@@ Line 62: / Line 62: @@
 ===Practical outcome===
-[[File:Example123.jpg|400px|thumb|center|alt text]]
+[[File:Example123.jpg|300px|thumb|center|alt text]]
 Due to time limit, there is only one small coil combined to the surface. A completed model would be like as the figure shown at previous section.
@@ Line 68: / Line 68: @@
 Eventually, the system would charge some tablet-size devices.
-[[File:Example1234567.png|200px|thumb|center|alt text]]
+[[File:Example1234567.png|400px|thumb|center|alt text]]
 ===Results===

@@ Line 68: / Line 68: @@
 Eventually, the system would charge some tablet-size devices.
-[[File:Example1234567.jpg]]
+[[File:Example1234567.png|200px|thumb|center|alt text]]
 ===Results===

← Older revision		Revision as of 16:00, 25 October 2016
Line 65:		Line 65:

	Due to time limit, there is only one small coil combined to the surface. A completed model would be like as the figure shown at previous section.		Due to time limit, there is only one small coil combined to the surface. A completed model would be like as the figure shown at previous section.
		+
		+	Eventually, the system would charge some tablet-size devices.
		+
		+	[[File:Example1234567.jpg]]

	===Results===		===Results===

@@ Line 75: / Line 75: @@
 ='''References'''=
 [1] D. Ahn and S. Hong, “A transmitter or a receiver consisting of two strongly coupled resonators for enhanced resonant coupling in wireless power transfer”, IEEE Transactions on Industrial Electronics, vol. 61, no.3 pp.1193 – 1203, 2014.
 [2] G. A. Covic and J. T. Boys, “Modern trends in inductive power transfer for transportation applications”, IEEE Journal of Emerging And Selected Topics In Power Electronics, vol. 1, no. 1, pp. 28 – 41, 2013.
 [3] S.Y.R. Hui et al., “A critical review of recent progress in mid-range wireless power transfer”, IEEE Transactions on Power Electronics, vol. 29,no. 9, pp. 4500-4511, 2014.
 [4] W. Liu et al., “Palm size charging platform with uniform wireless power transfer”, Nanyang Technological University and Singapore Institute of Manufacturing Technology, 2010.
 [5] A. Mahmood et al., “Analysis of wireless power transmission”, COMSATS Institute of Information Technology, Kyungpook National University, 2015.
 [6] L. Shi et al., “Wireless power hotspot that charges all of your devices”, Massachusetts Institute of Technology, Cambridge, MA, USA, 2015.
 [7] Q. Zhao, “Inductive power transfer”, School of Electrical and Electronic Engineering, Adelaide University, Australia, 2015.
 [8] Ding et al., “ Modelling and analysis of wireless charging system based on magnetic coupling resonance,” Internet of Things Research Centre., China,2014.
 [9] S. Murtoza et al., “ Wireless Charger for Low Power Devices using Inductive Coupling,” 2012.
 [10] L. Peng et al., “Performance Analysis and Experimental Verification of Mid-range Wireless Energy Transfer through Non-resonant Magnetic Coupling,” Journal of Electromagnetic Waves and Applications, 2011.
 [11] K.Van Schuylenbergh and R.Puers, Inductive Powering: Basic Theory and Application to Biomedical Systems, Analog Circuits and Signal Processing, 77-101, 2009.
 [12] J. Zhou et al., “The control approach of wireless power transmission system used by coupled coils working at the critical condition,” 2013.
 [13] S. Douglas, Audio Power Amplifier Design Handbook, Transferred to Taylor & Francis, 5th , 2012.
 [14] C.S.Wang, O.H. Stielau, and G.A. Covic, “Load models and their application in the design of loosely coupled Inductive power transfer systems,” in Proc. IEEE International Conf. on Power System Technology, Perth, Australia, Dec. 2000, pp.1053-1058.
 [15] S. Chopra and P. Bauer, “Analysis and design considerations for a contactless power transfer system,” in Proc. IEEE International Telecommunications Engery Conf., Amsterdam, The Netherlands, Oct. 2011, pp. 1-6.
 [16] K. Aditya and S. S. Williamson, “Comparative study of series- series and series-parallel topology for long track EV charging application,” in Proc. IEEE, 2014.
 [17] Model UT602/603: Operating Manual, UNIT Technology COP., Dongguan City, Guangdong Province, China, pp.1 -18.

← Older revision		Revision as of 15:52, 25 October 2016
Line 72:		Line 72:

	[[File:Example123456.png\|400px\|thumb\|center\|alt text]]		[[File:Example123456.png\|400px\|thumb\|center\|alt text]]
		+
		+	='''References'''=
		+	[1] D. Ahn and S. Hong, “A transmitter or a receiver consisting of two strongly coupled resonators for enhanced resonant coupling in wireless power transfer”, IEEE Transactions on Industrial Electronics, vol. 61, no.3 pp.1193 – 1203, 2014.
		+	[2] G. A. Covic and J. T. Boys, “Modern trends in inductive power transfer for transportation applications”, IEEE Journal of Emerging And Selected Topics In Power Electronics, vol. 1, no. 1, pp. 28 – 41, 2013.
		+	[3] S.Y.R. Hui et al., “A critical review of recent progress in mid-range wireless power transfer”, IEEE Transactions on Power Electronics, vol. 29,no. 9, pp. 4500-4511, 2014.
		+	[4] W. Liu et al., “Palm size charging platform with uniform wireless power transfer”, Nanyang Technological University and Singapore Institute of Manufacturing Technology, 2010.
		+	[5] A. Mahmood et al., “Analysis of wireless power transmission”, COMSATS Institute of Information Technology, Kyungpook National University, 2015.
		+	[6] L. Shi et al., “Wireless power hotspot that charges all of your devices”, Massachusetts Institute of Technology, Cambridge, MA, USA, 2015.
		+	[7] Q. Zhao, “Inductive power transfer”, School of Electrical and Electronic Engineering, Adelaide University, Australia, 2015.
		+	[8] Ding et al., “ Modelling and analysis of wireless charging system based on magnetic coupling resonance,” Internet of Things Research Centre., China,2014.
		+	[9] S. Murtoza et al., “ Wireless Charger for Low Power Devices using Inductive Coupling,” 2012.
		+	[10] L. Peng et al., “Performance Analysis and Experimental Verification of Mid-range Wireless Energy Transfer through Non-resonant Magnetic Coupling,” Journal of Electromagnetic Waves and Applications, 2011.
		+	[11] K.Van Schuylenbergh and R.Puers, Inductive Powering: Basic Theory and Application to Biomedical Systems, Analog Circuits and Signal Processing, 77-101, 2009.
		+	[12] J. Zhou et al., “The control approach of wireless power transmission system used by coupled coils working at the critical condition,” 2013.
		+	[13] S. Douglas, Audio Power Amplifier Design Handbook, Transferred to Taylor & Francis, 5th , 2012.
		+	[14] C.S.Wang, O.H. Stielau, and G.A. Covic, “Load models and their application in the design of loosely coupled Inductive power transfer systems,” in Proc. IEEE International Conf. on Power System Technology, Perth, Australia, Dec. 2000, pp.1053-1058.
		+	[15] S. Chopra and P. Bauer, “Analysis and design considerations for a contactless power transfer system,” in Proc. IEEE International Telecommunications Engery Conf., Amsterdam, The Netherlands, Oct. 2011, pp. 1-6.
		+	[16] K. Aditya and S. S. Williamson, “Comparative study of series- series and series-parallel topology for long track EV charging application,” in Proc. IEEE, 2014.
		+	[17] Model UT602/603: Operating Manual, UNIT Technology COP., Dongguan City, Guangdong Province, China, pp.1 -18.

@@ Line 67: / Line 67: @@
 ===Results===
-[[File:Example12345.png]]
+[[File:Example12345.png|400px|thumb|center|alt text]]
 According to the Figure, efficiency rises up to 83.98% at which the load resistance is changed to 18 ohms, and then it drops as load resistances still increase. Moreover, link input power shows an opposite trend, compared to output power’s trend. What should be noted is that output power could be approximately close to 2W at which the load resistance is ranged from 15 to 18 ohms. Besides, to meet the efficiency requirement, the load resistance could be selected between 15 ohms to 25 ohms. It should be admitted that some losses were caused by other components in the practical circuit, transferring to become others like heat.

← Older revision		Revision as of 15:48, 25 October 2016
Line 67:		Line 67:

	===Results===		===Results===
		+	[[File:Example12345.png]]
		+
		+	According to the Figure, efficiency rises up to 83.98% at which the load resistance is changed to 18 ohms, and then it drops as load resistances still increase. Moreover, link input power shows an opposite trend, compared to output power’s trend. What should be noted is that output power could be approximately close to 2W at which the load resistance is ranged from 15 to 18 ohms. Besides, to meet the efficiency requirement, the load resistance could be selected between 15 ohms to 25 ohms. It should be admitted that some losses were caused by other components in the practical circuit, transferring to become others like heat.