A Practical Z-parameter Two-Port Modeling Method to Evaluate Long-Distance and High-Efficiency Wireless Power-Relay Systems

2021 ◽  
pp. 1-1
Author(s):  
Mingyu Liu ◽  
Donglai Zhang ◽  
Linlin Lyu ◽  
Junqiao Li ◽  
Dandan Wang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Modeling Method ◽  
Wireless Power ◽  
Long Distance ◽  
Relay Systems ◽  
Z Parameter

scholarly journals Laser Power Transmission and Its Application in Laser-Powered Electrical Motor Drive: A Review

2021 ◽  
Vol 6 (1) ◽  
pp. 167-184
Author(s):  
Hongzuo Liu ◽  
Yixuan Zhang ◽  
Yihua Hu ◽  
Zion Tse ◽  
Jing wu
Keyword(s):  
Electromagnetic Interference ◽  
Laser Power ◽  
High Efficiency ◽  
Power Transmission ◽  
Power Delivery ◽  
Temperature Fields ◽  
Wireless Power ◽  
Long Distance ◽  
Diode Laser Beam ◽  
Adverse Influence

Abstract Laser power transmission (LPT) is considered a potentially efficient way for power delivery, especially in long-distance wireless applications and harsh hazardous environmental conditions. In contrast to other wireless power transmission (WPT) methods, LPT has many advantages such as lower device size, focused transmitting direction and high power density. With the development of technology, LPT has been widely adopted in several fields. In conservative industries, the utilisation of LPT can resolve the limitation problem in a wired connection. The adverse influence of electromagnetic interference (EMI) concerning application and high-temperature fields can be reduced. This paper will give a simple review of LPT and demonstrate the basic concept of a photoelectric emitter, transmission channel and receiver material. Based on the recent research about diode laser beam combining technology and high-efficiency multi-junction photovoltaics (PV) materials, the advised LPT devices for simple application as laser power motor will be simply discussed.

Theoretical Study on the Influence of Transmission Parameters on the Transmission Performance of Magnetic Resonance Wireless Power Transmission Systems

2014 ◽  
Vol 926-930 ◽  
pp. 434-439
Author(s):  
Chang Sheng Li ◽  
Juan Cao ◽  
He Zhang
Keyword(s):  
Magnetic Resonance ◽  
High Efficiency ◽  
Power Transmission ◽  
Maximum Efficiency ◽  
System Quality ◽  
Wireless Power ◽  
Transmission Performance ◽  
Wireless Power Transmission ◽  
Transmission Systems ◽  
Transmission Parameters

Magnetic resonance wireless power transmission technology is based on the phenomenon of resonant coupling to realize non-contact power transmission via near magnetic field. Based on the mutual coupling model of resonance system, the influence laws of system transmission parameters, such as coil coupling coefficients, load resistance, etc., on the transmission performance are theoretically studied in this paper. The research results shows that the power high-efficiency and high-quality transmission does not depend on the large coil loop coupling coefficient and the working frequencies of maximum power and maximum efficiency transmission do not coincide at most condition. Transmission systems with a high resonance frequency can produce high power and efficiency transmission over short distances. In addition, by increasing the coil diameter or wire diameter can improve the system quality factor, and optimize the energy transmission performance.

scholarly journals Design of a High-Power High-Efficiency Multi-Receiver Wireless Power Transfer System

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1308
Author(s):  
Yuyu Zhu ◽  
Hanyu Zhang ◽  
Zuming Wang ◽  
Xin Cao ◽  
Renyin Zhang
Keyword(s):  
Power Distribution ◽  
Power Flow ◽  
High Efficiency ◽  
Control Method ◽  
Experimental Models ◽  
Wireless Power ◽  
Multiple Receivers ◽  
Combined Operation ◽  
Wireless Power Transfer System ◽  
Good Agreement

This paper proposes a new control method to regulate the power flow into multiple receivers. This system consists of one transmitter controller and three receiver controllers. They work independently to decide the power distribution with their combined operation. The simulated and experimental models have been built, and the experimental results are in good agreement with the theoretical analysis results. The proposed method is robust, flexible, and generalizable, and can be employed under various wireless charging conditions.

A Design of a Wireless Power Receiving Unit With a High-Efficiency 6.78-MHz Active Rectifier Using Shared DLLs for Magnetic-Resonant A4 WP Applications

2016 ◽  
Vol 31 (6) ◽  
pp. 4484-4498 ◽  
Author(s):  
Hyung-Gu Park ◽  
Jae-Hyeong Jang ◽  
Hong-Jin Kim ◽  
Young-Jun Park ◽  
SeongJin Oh ◽  
...  
Keyword(s):  
High Efficiency ◽  
Wireless Power ◽  
Active Rectifier
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