scholarly journals Research on Multiphysics Coupling Relationship for the IPT System in Seawater Environment

2021 ◽  
Vol 12 (4) ◽  
pp. 230
Author(s):  
Kehan Zhang ◽  
Yue An
Keyword(s):  
Power Transmission ◽  
Mutual Influence ◽  
Wireless Power ◽  
High Loss ◽  
Field Coupling ◽  
Coupling Relationship ◽  
Multiphysics Coupling ◽  
Seawater Environment ◽  
Low Efficiency ◽  
Relationship Of

Wireless charging in the marine environment has problems such as high loss and low efficiency. In order to solve these problems, based on the wireless power transmission technology in the seawater environment, this paper studies the multi-physical field coupling relationship of the underwater IPT system. Through researching on the law of mutual influence and interaction between the fields, the relationship between the physical fields is established. The software is used to establish a system simulation model, the dataset is solved and analyzed to get the distribution of electric field, magnetic field, thermal field, and flow field, which provides a theoretical basis for the model and optimization of the IPT system in the seawater.

scholarly journals An Adaptive Current Limiting Controller for a Wireless Power Transmission System Energized by a PV Generator

Electronics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1648
Author(s):  
Ali Jafer Mahdi ◽  
Shah Fahad ◽  
Wenhu Tang
Keyword(s):  
Resonant Frequency ◽  
Power Transmission ◽  
Renewable Energy Sources ◽  
Transmission System ◽  
Consumer Electronics ◽  
Variable Load ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Power Transmission System ◽  
Low Efficiency

The use of a wireless power transmission system (WPTS) in modern applications, such as consumer electronics, renewable energy sources (RESs) and electric vehicles (EVs), can significantly increase the safety and convenience of the power supply. However, low efficiency is a major hurdle to the use of a WPTS in these applications. In this article, an adaptive virtual impedance controller (AVIC) is presented to enhance the wireless power transfer (WPT) efficiency of a photovoltaic generator (PVG) to the load. In the proposed controller, a unique method is employed to adaptively estimate the coefficient of coupling and resonant frequency of the WPTS coils as a function of the distance between the coils. Moreover, a modified incremental conductance (IC) based maximum power tracking (MIC-MPPT) technique is presented to operate the PVG at MPPT mode. The proposed MIC-MPPT is tested via a hardware prototype and the controller validation is carried out in the MATLAB/SIMULINK environment under various uncertainties, such as intermittent irradiance, variable load, and the distance between transmitter (Tx) and receiver (Rx) coils. Finally, a comparative analysis between the proposed controller and the conventional non-adaptive and adaptive resonant frequency controller is presented which confirms the superiority of the proposed controller.

Biologically-Inspired Wireless Power Transmission System

2016 ◽  
pp. 27-50 ◽  
Author(s):  
Agnes Ruey Chyi Cheah ◽  
Kim Ho Yeap ◽  
Kee Choon Yeong ◽  
Kazuhiro Hirasawa
Keyword(s):  
Power Transmission ◽  
Optimization Problems ◽  
Near Field ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Biologically Inspired ◽  
Gradual Evolution ◽  
Shortest Distance ◽  
Biologically Inspired Algorithms ◽  
Low Efficiency

This chapter gives an overview on Wireless Power Transfer (WPT) systems and the existing biologically-inspired architectures which could be used to optimize the efficiency of the systems. In general, wireless power transmission could be categorized into near-field and far-field mechanisms. At present, one of the most immediate issues to be solved is the relatively low efficiency in a WPT system. The system's efficiency decreases gradually as the distance increases. To ensure highest efficiency, the path with the shortest distance and the lowest interference is to be selected. In this case, a few of the most popular biologically-inspired algorithms, i.e. Firefly Algorithm(FA), Simulated Annealing (SA), the Ant Colony Optimization (ACO) and Genetic Algorithms (GAs) could be employed for efficiently solving different optimization problems. In short, these algorithms mentioned involve the emulation of fireflies flash signals for mating, exploitation of the metallurgy process, nature of ants leaving pheromones along the trails traveled and also the mimic of gradual evolution of organisms.

The Research of Wireless Low Power Transmission System Based on Magnetic Resonant Coupling

2012 ◽  
Vol 468-471 ◽  
pp. 2854-2858
Author(s):  
Wei Xin Li ◽  
He Zhang
Keyword(s):  
Power Transmission ◽  
Transmission System ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Theoretical Derivation ◽  
Strongly Coupled ◽  
Resonant Coupling ◽  
Transmission Parameters ◽  
Power Transmission System ◽  
Low Efficiency

In order to study on the relationship between transmission parameters and transmission performance of wireless power transmission system based on the basic principles of magnetic resonant coupling, because of magnetic induction coupling with low-efficiency and short-distance, the basic circuit model of wireless power transmission system via Strongly Coupled Magnetic Resonances was analyzed. The expression of the parameters such as relationships between efficiency, frequency and distance was derived. Further more, the experiment of wireless power transmission system was designed based on the results of the analysis. At last, the results of experiment show that the theoretical derivation is correct and all the system is affected by the transmission parameters.

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
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