Battery Power Transmission Voltage Reconfiguration for Efficient Charging
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Solution Overview
Problem
Existing power transmission systems face inefficiencies due to fixed voltage conversion, which is not suitable for systems requiring different voltage conversion and results in poor conversion efficiency when the voltage difference between terminals is large.
Innovation Solution
A power transmission system that includes a power transmission module, a power supplying/receiving module, and a battery module, where the power transmission module adjusts and converts voltage according to handshake information to perform charging or discharging operations in maximum power, optimal efficiency, or a combination of both modes, maintaining a predetermined voltage difference for efficient power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed voltage conversion is used in power transmission module, then system simplicity is maintained, but conversion efficiency deteriorates when voltage difference between terminals is large
Solution Approach 1:
The power transmission module dynamically adjusts the series-parallel structure of battery units based on real-time voltage requirements. The system switches between different connection configurations (series, parallel, or combinations) to optimize the voltage difference across the power transmission module, thereby maintaining high conversion efficiency while adapting to varying power transmission needs.
2Device complexity
If fixed voltage conversion is used, then device simplicity is maintained, but adaptability to different voltage conversion requirements deteriorates
Solution Approach 1:
The battery system is segmented into multiple battery units that can be independently connected in series or parallel configurations. This segmentation allows the system to adapt to different voltage conversion requirements by selectively connecting battery units, providing versatility without requiring complex external voltage conversion equipment.
Solution Approach 2:
The system dynamically reconfigures the series-parallel structure of battery units based on the specific voltage conversion requirements of the power receiving terminal. This dynamic adaptability allows the same power transmission module to serve multiple voltage conversion scenarios efficiently.
3Productivity
If maximum power mode is used for charging/discharging, then power transmission speed is improved, but energy loss increases
Solution Approach 1:
The system dynamically adjusts the series-parallel structure of battery units during charging and discharging operations to optimize the voltage difference across the power transmission module. By maintaining an optimal voltage difference, the system achieves high power transmission speed while minimizing energy loss, effectively balancing productivity and energy efficiency.
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 achieves increased conversion efficiency and charge/discharge endurance by dynamically adjusting the series-parallel structure of battery units and supply voltage to maintain optimal voltage differences, making it suitable for various power transmission requirements.
Implementation Method 1
the power transmission module is configured to convert the supply voltage into a charging voltage received by the battery module to charge the at least one battery unit
Data Source
AI summary
The disclosure provides a power transmission system and method. The power transmission method includes: determining to perform a charging operation or a discharge operation between a battery module and a power supplying/receiving module according to a handshake procedure performed by a power transmission module. Performing the charging operation includes: adjusting a supply voltage outputted by the power supplying/receiving module; and converting the supply voltage into a charging voltage received by the battery module to charge the battery module. Performing the discharging operation includes: converting a discharge voltage outputted by the battery module into a required voltage required by the power supplying/receiving module to supply the power supplying/receiving module. The charging operation or the discharging operation is performed in a maximum power mode, an optimal efficiency mode or a combination thereof between the battery module and the power supplying/receiving module.