Wireless Power Transmitter Solar Battery Management
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Solution Overview
Problem
Current wireless power transmission systems using solar cell modules face challenges in efficiently managing power generation and distribution between solar cell modules and battery modules, particularly in ensuring stable power supply to target devices based on varying energy demands and availability.
Innovation Solution
A wireless power transmitter system that includes a charging and path controller, a power converter, a source resonator, and a control/communication unit, which manages power flow from a solar cell module or an AC/DC converter to a battery module and then to a target device using resonant frequency transmission, adjusting impedance and controlling power supply based on generated power and target device state information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If power is supplied from solar cell module to battery module, then renewable energy utilization is improved, but power supply stability deteriorates when solar energy is insufficient
Solution Approach 1:
The patent combines solar cell module and AC/DC converter into a unified power supply system that shares a common battery module. The charging and path controller integrates multiple power sources and manages their coordination, allowing the system to merge renewable solar energy with grid electricity to maintain stable power supply regardless of solar availability.
Solution Approach 2:
The battery module serves as an intermediary energy storage device between the solar cell module/AC/DC converter and the wireless power transmitter. The charging and path controller acts as a mediator that dynamically manages power flow paths, directing power from either solar or grid source to the battery and/or transmitter based on real-time conditions, thus decoupling the variability of solar energy from the stability requirement of the wireless transmission.
2Productivity
If power flow is dynamically controlled based on solar output and device requirements, then power transmission efficiency is improved, but system complexity increases
Solution Approach 1:
The charging and path controller implements feedback control by continuously monitoring solar power output, battery charge level, and wireless power transmitter power consumption. Based on this feedback, the controller dynamically adjusts power flow paths and charging rates to optimize transmission efficiency while preventing overcharging and managing system resources effectively.
Solution Approach 2:
The system employs dynamic power path management where the charging and path controller can switch between different power flow configurations in real-time. The controller dynamically determines whether to charge the battery from solar or AC source, whether to supply power to the transmitter from battery or directly from AC, and adjusts charging rates based on current system state, enabling adaptive optimization without requiring complex manual intervention.
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
Ensures efficient and stable power transmission to target devices by dynamically controlling power flow based on solar cell module output and target device energy requirements, optimizing energy usage and preventing overcharging.
Implementation Method 1
A solar cell module configured to output power
Implementation Method 2
Wireless power refers to energy that is transferred from a wireless power transmitter to a wireless power receiver, for example, via magnetic coupling
Implementation Method 3
Magnetic coupling or resonance coupling couples the source resonator and the target resonator together
Data Source
AI summary
A wireless power transmission system includes a charging and path controller configured to supply, to a battery module, power generated by a solar cell module, or power generated by an alternating current-to-direct current (AC/DC) converter, based on a control signal; a power converter configured to receive power from the battery module and generate a supply power to be supplied to a target device from power received from the battery module using a resonant frequency; a source resonator configured to receive the supply power from the power converter and transmit the supply power received from the power converter to the target device; and a control/communication unit configured to generate the control signal of the charging and path controller based on an amount of the power generated by the solar cell module and an amount of power that can be output from the battery module.