NDLI: Practical test method for the sensitivity of programmable logic controller to voltage sags and short interruptions

Content Provider	IET Digital Library
Author	Xu, Zhong Mo, Wenxiong Gui, Liangyu Ma, Zhiyuan Xiao, Xianyong
Abstract	Voltage sag and short interruption lead to the tripping of sensitive equipment and cause the economic loss of the industry users. A programmable logic controller (PLC) is essential equipment used in the industrial process. However, there is no detailed understanding of the sensitivity of PLC under voltage sag and short interruption. The response characteristic of PLC under voltage sag is studied. This study proposes a new testing method, called the dichotomy test method (DTM) to do the test. This study builds the testing platform and tests the sensitivity of six PLCs from five famous PLC manufacturers. The testing considers the characteristics of voltage sag, including magnitude, duration, point-on-wave, phase-angle-jump, different supply voltage, slow recovery voltage sag, multiple voltage sags and so on. The tests prove that DTM has the advantage of accuracy, robustness and workload, compared with the traditional test method. The quantitative and qualitative response characteristics of PLC under voltage sag are obtained.
Starting Page	830
Ending Page	837
Page Count	8
ISSN	1751858X
Volume Number	14
e-ISSN	17518598
Issue Number	Issue 6, Sep (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cds/14/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cds.2019.0490
Journal	IET Circuits, Devices & Systems
Publisher Date	2020-04-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Control Engineering Computing Dichotomy Test Method Harmonics Multiple Voltage Sags Power Supply Quality Practical Test Method Programmable Controller Programmable Logic Controller Short Interruption Lead Slow Recovery Voltage Sag Traditional Test Method
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering

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