分析了基于交流注入式电池内阻测试仪电阻参数的测量原理,研究了采用标准交流电阻和感应分压器对其进行校准的方法,利用多位双级感应分压器对标准交流电阻的电压进行分压,模拟产生多值高准确度交流电阻箱,解决了电池内阻测试仪校准缺乏高准确度标准器的问题,分析了标准交流电阻的时间常数和感应分压器的相位误差对测量结果的影响。将该方法校准结果与采用实物标准电阻的校准结果进行了比较,在全量程范围内相差小于0.02%,表明该方法具有较高准确度。
Abstract
The principle of AC internal resistance measurement function of battery testers was analyzed. The calibration method based on AC standard resistor and inductive voltage divider was researched. A multi-decades two-stage inductive voltage divider was used to change the voltage of AC standard resistor in proportion. As a result, a high accuracy AC resistance box with multi-decades was simulated, which solved the problem of lack of standard for the calibration of battery internal resistance testers. The influence of both the time constant of AC resistor and phase error of inductive voltage divider was analyzed. The calibration results of the mentioned method and that used the physical resistors were compared. The difference was less than 0.02% over the full scale range, which proved the high accuracy of the above method.
关键词
计量学 /
电池内阻 /
交流注入法 /
电池测试仪 /
感应分压器 /
校准
Key words
metrology /
internal resistance of battery /
AC injection method /
battery tester /
inductive voltage divider /
calibration
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
［1］IEC 61960-3: 2017 Secondary cells and batteries containing alkaline or other non-acidelectrolytes-Secondary lithium cells and batteries for portable applications-Part 3: Prismatic and cylindrical lithium secondary cells, and batteries made from them［S］.
［2］IEC 62391-1: 2015, Fixed electric double-layer capacitors for use in electronic equipment - Part 1: Generic specification［S］.
［3］刘文辉, 赵鸿燕. 基于信号分解的电池交流阻抗测量方法［J］. 电测与仪表, 2011, 48(3): 25-28.
Liu W H, Zhao H Y. Measuring AC Resistance of Battery Based on Signal Decomposition［J］. Electrical Measurement & Instrumentation. 2011, 48(3): 25-28.
［4］JJF 1620—2017电池内阻测试仪校准规范［S］. 2017.
［5］陈英杰, 杨耕, 祖海鹏, 等. 基于恒流实验的锂离子电池开路电压与内阻估计方法［J］. 电工技术学报, 2018, 33(17): 3976-3988.
Chen Y J, Yang G, Zu H P, et al An Open Circuit Voltage and Internal Resistance Estimation Method of Lithium-Ion Batteries with Constant Current Tests ［J］. Transactions of China Electro technical Society, 2018, 33(17): 3976-3988.
［6］Feng J, Sun J, Li Z W, et al, AC Internal Resistance Measurement of Batteries［C］／／ Conference on Precision Electromagnetic Measurements. Paris, France, 2018: 1-2.
［7］吴忠强, 尚梦瑶, 申丹丹, 等. 基于BSA-RELM的纯电动汽车锂离子电池SOC估计［J］. 计量学报, 2019,40(4): 693-699.
Wu Z Q, Shang M Y, Shen D D, et al. Estimation of SOC of Li-ion Battery in Pure Electric Vehicle by BSA-RELM［J］. Acta Metrologica Sinica, 2019, 40(4): 693-699.
［8］冯建, 来磊, 石雷兵, 等. 交流电阻及其时间常数的准平衡式电桥精密测量技术［J］. 电工技术学报, 2017, 32(19): 191-196.
Feng J, Lai L, Shi L B, et al. Precision Measurement of AC Resistance and Time Constant Based on Quasi- balance Resistance Bridge ［J］. Transactions of China Electro technical Society, 2017, 32(19): 191-196.
［9］Lei L, Jian F, Shi L. Quasi-Balance Four-Terminal Resistance Bridge［J］. IEEE Transactions on Instrumentation & Measurement, 2015, 64(6): 1636-1641.
［10］潘洋, 周力任, 冯建. 一种新型低值宽带无感分流器时间常数测量方法［J］. 计量学报, 2019, 40(6): 946-951.
Pan Y, Zhou L R, Feng J. A New Method for the Measurement of Time Constant of Low Value Wide Band Non-inductance Current Shunt［J］. Acta Metrologica Sinica, 2019, 40(6): 946-951.
［11］王云静,王玉田,曲正伟. 数字微差补偿器及其在电流比较仪电桥中的应用［J］. 计量学报, 2015,36(5): 530-534.
Wang Y J, Wang Y T, Qu Z W. A Digital Compensator and Its Application in Current Comparator Bridge［J］ Acta Metrologica Sinica, 2015,36(5): 530-534.
［12］黄璐, 张钟华, 赵伟, 等. 精密宽频开尔文电桥的研制［J］. 计量学报, 2008, 29(2):97-101.
Huang L, Zhang Z H, Zhao W, et al. Development of a Wide-range AC Kelvin Bridge［J］. Acta Metrologica Sinica, 2008, 29(2):97-101.
基金
国家质检总局科技计划项目(2015QK042)
PDF(744 KB)
