Increasing Ride-Through Capability of Control Panels Using Square-Wave Series Voltage Compensator

Voltage sag is the most important power quality problem. The classical solution to protect industrial processes against voltage sags is based on the use of a large series voltage compensator (SVC), such as the dynamic voltage restorer. Although the SVCs are a general solution, in most cases alternat...

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Bibliographic Details
Published inIEEE transactions on industry applications Vol. 51; no. 2; pp. 1309 - 1316
Main Authors Amariz Pires, Igor, Silva, Sidelmo M., de Jesus Cardoso Filho, Braz
Format Journal Article
LanguageEnglish
Published IEEE 01.03.2015
Subjects
Contactors
Power quality
Power system stability
Static VAr compensators
Variable speed drives
Voltage control
Voltage fluctuations
Adjustable-speed drive (ASD)
series voltage compensator (SVC)
contactor
power quality
control panel
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Summary:Voltage sag is the most important power quality problem. The classical solution to protect industrial processes against voltage sags is based on the use of a large series voltage compensator (SVC), such as the dynamic voltage restorer. Although the SVCs are a general solution, in most cases alternative measures should be checked before purchasing such an expensive piece of hardware. For instance, some adjustable speed drives (ASDs) have embedded protection functions to mitigate voltage sags. In addition, contactors and power line carriers could be protected by low-power single-phase square-wave SVCs, which have been shown to be cost effective. This paper shows that, using the "ride-through" function of ASDs combined with cost-effective square-wave SVCs, a significant improvement in the ride-through capability of the protected process is achieved. Extensive testing of a low-power ASD panel supports the proposed voltage sag mitigation alternative.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2014.2350080