Wireless Energy Transfer Phase Synchronization for Combined Power
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Solution Overview
Problem
Existing wireless energy transfer systems face challenges in synchronizing energy transfer between multiple inductive wireless energy transfer apparatuses to efficiently provide power to a load, particularly in varying orientations and configurations.
Innovation Solution
A method and apparatus that control the frequency and phase of a magnetic field generated by a wireless energy transfer apparatus to synchronize energy transfer with other apparatuses, using current and schedule signals to adjust and steer energy transfer, allowing for simultaneous energy delivery to a load in any orientation and enabling stacking configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple wireless energy transfer apparatuses operate independently without synchronization, then each apparatus can function autonomously, but energy transfer efficiency decreases and apparatuses cannot provide combined power to a load
Solution Approach 1:
The patent merges multiple independent wireless energy transfer apparatuses into a synchronized system that operates as a unified power source. The controller coordinates the operation of multiple apparatuses to transfer energy simultaneously and coherently to a common load, enabling their combined power output to be effectively utilized.
Solution Approach 2:
The system implements feedback control where the controller monitors the operation status of multiple wireless energy transfer apparatuses and adjusts their parameters to maintain synchronization. This feedback mechanism ensures that all apparatuses operate in coordination, optimizing energy transfer efficiency while managing the complexity through intelligent control.
2Adaptability or versatility
If wireless energy transfer apparatuses are designed with fixed orientation requirements, then the magnetic field generation and energy transfer can be optimized, but the apparatus cannot adapt to varying orientations and configurations
Solution Approach 1:
The patent applies dynamics by making the wireless energy transfer apparatus adaptable to varying orientations through controlled magnetic field generation. The system can dynamically adjust its operation to maintain effective energy transfer regardless of the relative positions and orientations of the apparatuses, while the controller ensures reliable coordinated operation.
3Speed
If multiple wireless energy transfer apparatuses transfer energy simultaneously without coordination, then energy delivery speed increases, but phase interference occurs and reduces overall efficiency
Solution Approach 1:
The patent employs periodic action through synchronized oscillating magnetic field generation at coordinated frequencies. The controller ensures that multiple apparatuses generate magnetic fields with matched phases and frequencies, creating constructive interference that enhances energy transfer speed while minimizing energy loss through phase coordination.
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
This approach enhances energy delivery efficiency, allowing multiple wireless energy transfer apparatuses to provide combined power to a load, increasing overall energy output and battery life, while enabling flexible orientation and stacking for shared ferromagnetic cores.
Implementation Method 1
energy may be transferred from/to a wireless battery inductively using a magnetic field generated by, for example, a wireless battery
Implementation Method 2
controlling a frequency and/or phase of an electrical current passing through at least one magnetic field generator to generate at least one magnetic field
Data Source
Figure 1~2
Figure 3
Figure 4A
AI summary
A method comprising: controlling a wireless energy transfer apparatus to synchronize energy transfer with at least one further wireless energy transfer apparatus to wirelessly transfer energy to at least one load in combination with the at least one further wireless energy transfer apparatus.