基于电阻补偿法精确测量电池内阻

Determination of Internal Resistance of the Battery Based on Compensation

电池内阻是一项重要参数,影响着电池放电能力。目前内阻测定的方法主要有基于欧姆定律的直流放电法和将电池视作有源电阻的交流测定法,但各自存在一定的弊端。该文提出了一种新的基于电阻补偿测定法,利用较为简单的电路精确测量电池内阻,且对电池本身没有损伤。仿真结果表明该测定方法行之有效。

The internal resistance of the battery is an important parameter that affects the battery discharge ca- pacity.There are two methods for determination of resistance,one is DC discharge based on Ohm＇s law,the other is AC discharge which regards the battery as the AC active resistance,but the both have their disadvantages.T- his paper presents a new method for the determination of resistance based on the compensation.The new met- hod use one relatively simple circuit to accurately determine the internal resistance of the battery,and there＇s no damage to the battery itself.The simulation results show that the method is effective.