Solar Wireless Power Transfer Using Resonant Electric Field Coupling
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Solution Overview
Problem
Existing solar power transfer systems lack efficient and safe methods for wireless energy transmission, particularly for high-power devices like electric vehicles, which require reliable and secure charging solutions.
Innovation Solution
A solar power transfer system utilizing an Electric Field Power Generator (EFPG) and an Electric Field Potential Converter (EFPC) for wireless energy transfer, combined with a controller that manages solar-sourced DC electricity and grid-sourced AC electricity for efficient power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If wireless power transfer is implemented using conventional methods, then energy transmission capability is improved, but safety hazards and material damage occur due to energy displacement and eddy current heat generation
Solution Approach 1:
The patent changes the operating parameters by using resonant frequency coupling at optimized frequencies that avoid harmful effects. The system tunes the resonant frequency of both transmitter and receiver to achieve efficient power transfer while maintaining safe operating conditions that prevent health hazards and material damage.
Solution Approach 2:
The patent converts the potential harmful effect of electromagnetic radiation into a beneficial resonant coupling mechanism. By operating at resonant frequencies, the system achieves efficient energy transfer while the resonant condition naturally limits energy displacement and prevents harmful eddy currents, turning what could be harmful radiation into controlled, beneficial electromagnetic coupling.
2Reliability
If resonant electric field systems operate at high frequency, then operational robustness and security are improved, but system complexity increases
Solution Approach 1:
The patent employs universal resonant coupling principles that can be applied across different power levels and device types. The same fundamental resonant mechanism works for both low-power consumer electronics and high-power applications, reducing system complexity by using a unified approach rather than separate systems for different power requirements.
Solution Approach 2:
The system incorporates feedback mechanisms that automatically tune and maintain resonant frequency coupling. This feedback control simplifies operation by automatically adjusting parameters to achieve optimal coupling, reducing the complexity of manual tuning and system configuration while maintaining high reliability through continuous optimization.
3Use of energy by moving object
If solar power is used for wireless charging, then energy sustainability is improved, but charging speed and power delivery capability are limited
Solution Approach 1:
The system incorporates energy storage components that accumulate solar energy during periods of high solar availability. This preliminary energy accumulation allows the system to deliver high-power charging when needed, decoupling the instantaneous power delivery capability from the instantaneous solar generation rate and maintaining both sustainability and high charging speed.
Solution Approach 2:
The patent employs dynamic power management that adjusts the power transfer rate based on available solar energy, battery charge state, and charging requirements. This dynamic adjustment allows the system to maximize charging speed when solar energy is abundant while maintaining sustainability by reducing power draw when solar generation is limited, achieving both goals simultaneously through adaptive control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables safe and efficient wireless charging of high-power devices by converting solar power into wireless electric energy, ensuring reliable operation and compliance with safety standards.
Implementation Method 1
The solar cell array is adapted for capturing solar power and transforming the solar power into solar-sourced Direct Current (DC) electricity
Implementation Method 2
The EFPG is adapted for transmitting electric energy wirelessly to an Electric Field Potential Converter (EFPC)
Implementation Method 3
The EFPG comprises a generating cell adapted for converting electric power received by the EFPG into an electric field potential. The electric energy being wirelessly transmitted to the EFPC by the generating cell through one of: capacitive coupling and resonant capacitive coupling
Data Source
AI summary
The present solar power transfer system comprises a solar cell array, an Electric Field Power Generator (EFPG), and a controller. The solar cell array is adapted for capturing solar energy and transforming the solar energy into solar-sourced Direct Current (DC) electricity. The EFPG is adapted for transmitting electric energy wirelessly to an Electric Field Potential Converter (EFPC). The controller is adapted for receiving the solar-sourced DC electricity and providing the solar-sourced DC electricity to the EFPG for wireless transfer as wireless electric energy. Optionally, the controller comprises a connection to grid power for receiving Alternate Current (AC) electricity, an AC/DC converter for converting the AC electricity into grid-sourced DC electricity, and a power management modulator for combining the grid-sourced DC electricity to the solar-sourced DC electricity, and providing the combined grid-sourced DC electricity and solar-sourced DC electricity to the EFPG for wireless transfer as wireless electric energy.