一种基于均衡拓扑的电池温度控制方法

CN122118208BActive Publication Date: 2026-07-17CHINA JILIANG UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA JILIANG UNIV
Filing Date
2026-04-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing battery pack equalization control technology cannot effectively cope with electrothermal coupling nonlinear conditions under high-rate charge and discharge conditions, which leads to an increased risk of thermal runaway. Furthermore, long-distance equalization results in increased energy loss, insufficient topology scalability, and difficulty in adapting to the needs of battery packs of different sizes.

Method used

By constructing a single-cell state of charge and temperature prediction model, introducing adaptive weight coefficients, and using the fireworks algorithm of Tent chaotic mapping to initialize the population to generate the optimal control signal, the switching transistors and flying inductors in the balanced topology are controlled to conduct, thereby achieving coordinated optimization of charge and temperature, and physical bypass isolation is achieved by closing mutual exclusion switches.

Benefits of technology

It effectively suppresses the risk of aggravated heat generation and localized overheating, achieves synergistic optimization of both power and temperature objectives, reduces energy loss, improves the safety and temperature distribution uniformity of the battery pack, and has flexible scalability.

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Abstract

本发明提供一种基于均衡拓扑的电池温度控制方法,涉及电池温度控制技术领域,本发明通过获取多维数据计算当前荷电状态以判定均衡启动条件,避免无效均衡引发的损耗;构建预测模型将控制信号结合占空比映射为实际电流,输出预测荷电状态与预测温度,实现电热物理解耦与提前预测;对两项预测差异进行无量纲化缩放,引入自适应权重系数构建复合优化目标函数,达成电量收敛与温度平衡的动态妥协;采用经Tent混沌映射初始化的烟花算法迭代寻优得出最优控制信号,防止陷入局部最优;依据最优控制信号控制开关管与飞渡电感导通执行充放电能量转移,并在旁路指令下闭合互斥开关,兼顾电量均衡与异常发热单体的物理热隔离。
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