An Algorithm for Calculating the RMS Value of the Non-Sinusoidal Current Used in AC Resistance Spot Welding | |
Zhou K(周亢)1,2; Cai, Lilong2; Zhou, K (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100080, Peoples R China. | |
发表期刊 | JOURNAL OF POWER ELECTRONICS |
2015-07-01 | |
卷号 | 15期号:4页码:1139-1147 |
ISSN | 1598-2092 |
摘要 | In this paper, an algorithm based on a model analysis of the online calculation of the root-mean-square (RMS) value of welding current for single-phase AC resistance spot welding (RSW) was developed. The current is highly nonlinear and typically non-sinusoidal, which makes the measuring and controlling actions difficult. Though some previous methods focused on this issue, they were so complex that they could not be effectively used in general cases. The electrical model of a single-phase AC RSW was analyzed, and then an algorithm for online calculation of the RMS value of the welding current was presented. The description includes two parts, a model-dependent part and a model-independent part. Using a previous work about online measurement of the power factor angle, the first part can be solved. For the second part, although the solution of the governing equation can be directly obtained, a lot of CPU time must be consumed due to the fact that it involves a lot of complex calculations. Therefore, a neural network was employed to simplify the calculations. Finally, experimental results and a corresponding analysis showed that the proposed algorithm can obtain the RMS values with a high precision while consuming less time when compared to directly solving the equations. |
关键词 | Model-independent Neural Network Nonlinear Rms Value Single-phase Ac Rsw |
DOI | 10.6113/JPE.2015.15.4.1139 |
URL | 查看原文 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000358181700027 |
关键词[WOS] | QUALITY INSPECTION ; POWER-FACTOR ; INDENTATION ; STRENGTH |
WOS研究方向 | Engineering |
WOS类目 | Engineering, Electrical & Electronic |
项目资助者 | The authors would like to thank the Research Grants Council of Hong Kong, China for financial support for this work (Project No: GRF 610611). |
课题组名称 | LHD微尺度和非平衡流动 |
论文分区 | Q3 |
力学所作者排名 | 1 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/55782 |
专题 | 高温气体动力学国家重点实验室 |
通讯作者 | Zhou, K (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100080, Peoples R China. |
作者单位 | 1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100080, Peoples R China 2.Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Hong Kong, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Zhou K,Cai, Lilong,Zhou, K . An Algorithm for Calculating the RMS Value of the Non-Sinusoidal Current Used in AC Resistance Spot Welding[J]. JOURNAL OF POWER ELECTRONICS,2015,15,4,:1139-1147. |
APA | Zhou K,Cai, Lilong,&Zhou, K .(2015).An Algorithm for Calculating the RMS Value of the Non-Sinusoidal Current Used in AC Resistance Spot Welding.JOURNAL OF POWER ELECTRONICS,15(4),1139-1147. |
MLA | Zhou K,et al."An Algorithm for Calculating the RMS Value of the Non-Sinusoidal Current Used in AC Resistance Spot Welding".JOURNAL OF POWER ELECTRONICS 15.4(2015):1139-1147. |
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