Battery simulation method based on double-branch equivalent circuit model

• Main Authors: AHN KI-JANG, KIM JE-IK, HWANG YONG-JUN, LIM BYUNG-HEE, KANG MIN-JEONG, CHO YOUNG-BUM, KIM KI-HEON, BAEK HO-YUL, JANG YU HONG
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

A battery simulation method performed by a computing device including a processor and a memory is provided. The method comprises the steps of: selecting an equivalent circuit model of a battery comprising a first branch and a second branch; setting the capacity ratio of the first branch to the second branch; receiving a current value; estimating a distribution current value distributed to each branch; updating the SOC of each branch; determining an open-circuit voltage value, a series resistance value, a first parallel resistance value, a second parallel resistance value, a first capacitance and a second capacitance of each branch; determining a first voltage value across the first shunt resistor and a second voltage value across the second shunt resistor of each branch; calculating a G parameter value and an H parameter value of the battery; and calculating an estimated voltage value of the battery. 提供一种由包括处理器和存储器的计算装置执行的电池模拟方法。所述方法包括以下步骤：选择包括第一分支和第二分支的电池的等效电路模型；设定第一分支和第二分支的容量比；接收电流值；估计分配给每个分支的分配电流值；更新每个分支的S