Study on the Compensated Capacitance for the Wireless Power Transmission System

2014 ◽  
Vol 525 ◽  
pp. 270-275
Author(s):  
Xiu Quan Liu ◽  
Yan Hong Li
Keyword(s):  
Output Power ◽  
Power Factor ◽  
System Performance ◽  
Power Transmission ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Load Voltage ◽  
In Series ◽  
Working Principle ◽  
Secondary Winding

The working principle of a Wireless Power Transmission technology (WPT) system and compensated capacitance topologies were introduced. Then, based on MATLAB SIMULINK software, capacitance compensated in the primary and secondary winding on the influence of the WPT system performance were studied. The results show that the primary compensated capacitance in series can improve the voltage of the load, the primary compensated capacitance in parallel can reduce the primary winding current; the secondary compensated capacitance can also improve the load voltage, but the rate is not obvious; in the SP model, the load voltage and power factor are the biggest, the influence of the variational capacitance in the primary on the output power is bigger than in the secondary

Data Transmission Using Original Coils in Resonant Wireless Power Transmission

2011 ◽  
Vol E94-B (11) ◽  
pp. 3172-3174 ◽  
Author(s):  
Takashi MARUYAMA ◽  
Tatsuya SHIMIZU ◽  
Mamoru AKIMOTO ◽  
Kazuki MARUTA
Keyword(s):  
Data Transmission ◽  
Power Transmission ◽  
Wireless Power ◽  
Wireless Power Transmission

Modelling of Wireless Power Transmission

2019 ◽  
Vol 7 (2) ◽  
pp. 244-248
Author(s):  
SK.Abbas . ◽  
P.Jyothi Swaroop ◽  
M. Swathi Priyanka ◽  
R.Dinesh .
Keyword(s):  
Power Transmission ◽  
Wireless Power ◽  
Wireless Power Transmission

Compensating Resonant Frequency via Adjusting Adjustable Coil Automatically

2019 ◽  
Vol 12 (5) ◽  
pp. 432-438
Author(s):  
Jin Xu ◽  
Yuting Zhao
Keyword(s):  
Resonant Frequency ◽  
Power Transmission ◽  
Reference Value ◽  
Transmission Efficiency ◽  
Theoretical Research ◽  
Future Research ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Resonant Coupling ◽  
Transmission Distance

Background: Detuning is the main problem that affects the efficiency and transmission distance of the resonant coupling Wireless Power Transmission (WPT). The distance of load and the offset of the load position could cause serious detuning. Methods: This paper presents an adjustable coil in which inductance can be adjusted. Then a model of WPT was established that could compensate resonant frequency automatically using the adjustable coil. Next, the relationship between the primary resonant frequency and the transmission efficiency is analyzed from the circuit. The analysis proved that the design of the adjustable coil could improve the transmission efficiency of the WPT system. Finally, a prototype of WPT system was built. Results: The experimental results showed that WPT system with adjustable coil can improve the transmission efficiency which proves the theoretical research. At the same time, it has essential reference value for the future research of WPT. Conclusion: In this paper, aiming at the system detuning caused by some other factors, such as the position shift of the load during the wireless power transmission, an adjustable coil is proposed.

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