可编程序控制器对电压暂降敏感度的试验研究

doi:10.19595/j.cnki.1000-6753.tces.170218

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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.

Key words： Programmable controller (PLC) voltage sags sensitivity Chroma 61860 sensitivity curves

Received: 01 March 2017 Published: 28 March 2018

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TM711

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	Wu Yapen
	Liu Yingying
	Xu Yonghai

Cite this article:

Wu Yapen,Liu Yingying,Xu Yonghai. Experimental Research on PLCs Sensitivity During Voltage Sags[J]. Transactions of China Electrotechnical Society, 2018, 33(6): 1422-1430.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170218 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I6/1422

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