Abstract:This paper proposes a zero-forcing beamforming design for the energy efficiency optimization of the magnetic resonance based wireless power transfer system with multiple transmitter coils, which aims to secure energy transfer control. A scheme based on beamforming technology is proposed to prevent unauthorized users from accessing the system, which builds a beamforming model consisting of multiple transmitter coils, a target receiver, and a non-target receiver to simulate the actual system. Then to optimize th… Show more
“…In addition, low frequency inductive charging leads to slow charging and higher heat generation. However, in order to keep up with consumer demands with the lowest level of compromise, the inductive charging in a new form with the same basic principle has been developed and known as resonant inductive coupling based wireless power transfer technology (RIC-WPT) [15][16][17][18][19][20]. Unlike traditional inductive charging, RIC-WPT operates at resonant frequency and a very small or almost null radiation from the nearby off-resonant objects.…”
Magnetic coupling based Wireless Power Transfer (WPT) systems for charging no doubt have emerged as an eye catching alternative charging methodology in recent years. However, a rigorous assessment between magnetic coupling based traditional WPT system and magnetic resonant coupling based WPT system is essential in order to characterize and decide the best suited technology corresponding to their applicability. The effectiveness of both the technologies and their power transfer characteristics have been demonstrated in perception of consumed input power, delivered load power for different coupling coefficient over varying operating frequency and electric load condition. The theoretical and analytical study supported with the simulation and bench set up experiments has been carried out in order to disclose the viability of both the technologies in the device charging. In addition, an inclusive correlation between the performance parameters of the WPT systems has been established through the analysis and justification regarding the RIC-WPT system as an alternative viable solution in the charging field is outlined.
“…In addition, low frequency inductive charging leads to slow charging and higher heat generation. However, in order to keep up with consumer demands with the lowest level of compromise, the inductive charging in a new form with the same basic principle has been developed and known as resonant inductive coupling based wireless power transfer technology (RIC-WPT) [15][16][17][18][19][20]. Unlike traditional inductive charging, RIC-WPT operates at resonant frequency and a very small or almost null radiation from the nearby off-resonant objects.…”
Magnetic coupling based Wireless Power Transfer (WPT) systems for charging no doubt have emerged as an eye catching alternative charging methodology in recent years. However, a rigorous assessment between magnetic coupling based traditional WPT system and magnetic resonant coupling based WPT system is essential in order to characterize and decide the best suited technology corresponding to their applicability. The effectiveness of both the technologies and their power transfer characteristics have been demonstrated in perception of consumed input power, delivered load power for different coupling coefficient over varying operating frequency and electric load condition. The theoretical and analytical study supported with the simulation and bench set up experiments has been carried out in order to disclose the viability of both the technologies in the device charging. In addition, an inclusive correlation between the performance parameters of the WPT systems has been established through the analysis and justification regarding the RIC-WPT system as an alternative viable solution in the charging field is outlined.
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