电阻焊电流信号积分漂移软件补偿方法
Software Compensation Method of Integral Drift for Resistance Welding Current Signal
- 2024年54卷第6期 页码:25-29
收稿:2023-12-04,
修回:2023-12-24,
纸质出版:2024-06-25
DOI: 10.7512/j.issn.1001-2303.2024.06.05
移动端阅览

浏览全部资源
扫码关注微信
收稿:2023-12-04,
修回:2023-12-24,
纸质出版:2024-06-25
移动端阅览
为满足电阻焊电流长时间检测的需求并简化检测电路,针对罗氏线圈信号调理的积分漂移问题,探讨了基于软件补偿的漂移补偿方法。采用多款国产运算放大器构建积分器,在恒电流控制模式下检测积分器输出信号的漂移率,在数据处理过程中叠加漂移率的平均值以实现软件补偿。将积分漂移电压视为电流检测的误差,以相对误差分析了恒电流输出2 s过程中软件补偿的准确性。结果表明,基于软件补偿的漂移补偿方法在信号检测后进行数据修正,减少了对硬件补偿的依赖,在1~4 kA的被测电流范围内相对误差的平均值不超过1.0 %,能够满足电阻焊电流长时间检测需求。该补偿方法丰富了基于罗氏线圈的电流信号处理手段,具有较好的工程适用性。
In order to meet the requirements for long-time detection of resistance welding current and simplify the detection circuit
a drift compensation method based on software compensation was explored to address the integral drift problem in the signal conditioning when Rogowski coils were used. Several domestically produced operational amplifiers were used to construct integrators
and the drift rate of the integrator output signal was detected in constant current control mode. The average drift rate was superimposed during data processing to achieve software compensation. The integral drift voltage was treated as an error in current detection
and the accuracy of software compensation during the 2 second process of constant current output was analyzed using relative error. The results show that the drift compensation method based on software compensation performs data correction after signal detection
reducing the dependence on hardware compensation. The average relative error within the measured current range of 1~4 kA does not exceed 1.0%
which can meet the requirements of long-time detection of resistance welding current. This compensation method enriches the current signal processing methods based on Rogowski coils and has good engineering applicability.
路向琨 , 徐昊 , 翟宝亮 , 等 . 一种基于数据统计的电阻点焊飞溅快速识别方法 [J]. 电焊机 , 2020 , 50 ( 5 ): 98 - 101+138 .
LU X K , XU H , ZHAI B L , et al . A Fast Identification Method of Spatter in Resistance Spot Welding Based on Data Statistics [J]. Electric Welding Machine , 2020 , 50 ( 5 ): 98 - 101+138 .
季洪成 , 顾廷权 , 王鲁 , 等 . 电阻焊质量评估技术现状与展望 [J]. 机械设计与制造 , 2023 ( 2 ): 121 - 126 .
JI H C , GU T Q , WANG L , et al . Overview and Prospect of Quality Assessment Technology in Resistance Welding [J]. Machinery Design and Manufacture , 2023 ( 2 ): 121 - 126 .
柯荜正 . 基于电极位移的电阻热压焊过程实时控制研究 [D]. 广东 : 华南理工大学 , 2021 .
KE B Z . Research on Real-Time Control of Resistance Hot Pressure Bonding Process Based on Electrode Displacement [D]. Guangdong : South China University of Technology , 2021 .
李刚 , 曹彪 , 杨凯 . 基于Rogowski线圈的中频点焊次级电流检测装置 [J]. 焊接 , 2018 ( 3 ): 41 - 44 .
LI G , CAO B , YANG K . Secondary Current Detecting Device of Medium Frequency Resistance Spot Welding Based on Rogowski Coil [J]. Welding and Joining , 2018 ( 3 ): 41 - 44 .
管景凯 , 杨凯 , 吴敏 , 等 . 电阻点焊焊接监测仪的设计 [J]. 电焊机 , 2018 , 48 ( 10 ): 105 - 109 .
GUAN J K , YANG K , WU M , et al . Design of Resistance Spot Welding Monitor [D]. Electric Welding Machine , 2018 , 48 ( 10 ): 105 - 109 .
容爱琼 , 曾家铨 , 黄增好 , 等 . 基于罗氏线圈的电阻点焊电流长时间检测 [J]. 热加工工艺 , 2022 , 51 ( 11 ): 150 - 154 .
RONG A Q , ZENG J Q , HUANG Z H , et al . Long-time Measurement of Resistance Spot Welding Current Based on Rogowski Coil [J]. Hot Working Technology , 2022 , 51 ( 11 ): 150 - 154 .
XIA Y J , ZHANG Z D , XIA Z X , et al . A precision analogue integrator system for heavy current measurement in MFDC resistance spot welding [J]. Measurement Science and Technology , 2016 , 27 ( 2 ): 251042 .
贾鹏林 . 基于国产芯片的EtherCAT转Modbus TCP网关模块的设计与实现 [D]. 陕西 : 西安电子科技大学 , 2020 .
JIA P L . Design and Implementation of EtherCAT to Modbus TCP Gateway Module Based on Domestic Chip [D]. Shanxi : Xidian University , 2020 .
刘春江 . 基于国产芯片的列车数字控制系统设计 [D]. 北京 : 北京交通大学 , 2020 .
LIU C J . Design of Train Digital Control System Based on Chinese Chips [D]. Beijing : Beijing Jiaotong University , 2020 .
李维波 . 基于Rogowski线圈的大电流测量传感理论研究与实践 [D]. 湖北 : 华中科技大学 , 2005 .
LI W B . Study of Sensor Theory Centered on Rogowski Coil for Heavy Current Measurement Application [D]. Hubei : Huazhong University of Science and Technology , 2005 .
相关作者
相关机构
公网安备11010802024621