Flyback Transformer Segmentation for Battery Voltage Balance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electric storage systems face complexity in voltage balance control between multiple battery modules, leading to inefficient power transfer and increased wiring complications as the number of modules increases, due to shared magnetic cores and transformers.
Innovation Solution
The implementation of a flyback transformer configuration with separate magnetic cores and switches for each electric storage module, allowing independent control of power transfer between modules using primary and secondary side coils, and a common power supply voltage to reduce voltage requirements on semiconductor switches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple electric storage modules are connected with a common transformer device, then voltage balance control can be achieved, but wiring becomes complicated and device complexity increases
Solution Approach 1:
The patent divides the single common transformer device into multiple separate transformer devices, with each transformer device dedicated to a specific electric storage module. This segmentation eliminates the need for complex star-shaped wiring connections to a central transformer, as each module now has its own local transformer for voltage balance control.
2Reliability
If a common transformer device is used for multiple electric storage modules, then voltage balance can be controlled, but the number of connections increases with more modules
Solution Approach 1:
The patent assigns one transformer device to each electric storage module, creating independent local control units. This eliminates the scaling problem where adding more modules increases connections to a central transformer, as each new module simply adds its own dedicated transformer without increasing overall system connection complexity.
3Reliability
If switching circuits operate at the same phase for uniform voltage control, then voltage uniformity is achieved, but independent power transfer control between cell groups is prevented
Solution Approach 1:
The patent enables dynamic and independent control of switching circuits for each transformer device, allowing the system to adapt switching phases and timing based on real-time voltage differences between cell groups. This dynamic control optimizes power transfer efficiency by directing energy from high-voltage cell groups to low-voltage cell groups as needed, rather than operating all switches in unison.
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 configuration simplifies wiring, enables independent control of each module, and reduces the voltage requirements for semiconductor switches, improving power transfer efficiency and scalability in electric storage systems.
Implementation Method 1
The implementation of a flyback transformer configuration with separate magnetic cores and switches for each electric storage module, allowing independent control of power transfer between modules using primary and secondary side coils
Data Source
AI summary
A battery system includes a plurality of electronic storage modules serially connected together wherein the electronic storage modules include a battery block group including a plurality of battery cells, and a different magnetic core connected to each battery block group.