电工技术学报2018，Vol.33Issue(6)：1422-1430,9.DOI:10.19595/j.cnki.1000-6753.tces.170218
可编程序控制器对电压暂降敏感度的试验研究
Experimental Research on PLCs Sensitivity During Voltage Sags
摘要
Abstract
As one of the typical sensitive equipment to voltage sags, programmable controller (PLC) has been mentioned in many papers. About the sag sensitivity of PLC, foreign researchers who engaged in power quality research had already done some tests in the early years. Taking into consideration that the renewal rate of PLC technique, process improvement and the lack of PLC sag sensitivity tests conducted in domestic, it is necessary to carry out the voltage sag sensitivity tests and understand the changes of their sensitive characteristics for the mainstream brand of PLC. In the paper, an experimental research platform was developed. Chroma 61860 (i.e., Regenerative Grid Simulator Model 61860) was used as the voltage sag generator. Five PLCs from four brands were selected as the representatives. The effects of the voltage sag basic characteristics and other factors such as odd harmonics on PLCs were analyzed through numerous experiments. Sensitivity curves were plotted with many data, and accordingly the influence of all above factors on PLC sensitivity was given. Compared with traditional given conclusions, the sensitivity of the recent applied PLC decreased.关键词
可编程序控制器/电压暂降/敏感度/Chroma61860/敏感度曲线Key words
Programmable controller (PLC)/voltage sags/sensitivity/Chroma 61860/sensitivity curves分类
信息技术与安全科学引用本文复制引用
吴亚盆,刘颖英,徐永海..可编程序控制器对电压暂降敏感度的试验研究[J].电工技术学报,2018,33(6):1422-1430,9.基金项目
国家自然科学基金(51277069)和国家电网公司项目:电能质量经济损失及节能效益评估关键技术及应用研究(SGRI-DL-71-15-006)资助. （51277069）
