A Study of the Induction Motor/ASD Immunity in the Presence of Voltage Sags

Juan Carlos Gómez, Medhat M. Morcos



Adjustable speed drives (ASDs) are sensitive to power quality problems, especially voltage sags. The effect of the magnitude and duration of voltage sags on ASD behavior is related to the energy deficit. On the other hand, the induction motor operation is sensitive to voltage sags in regard to the restart possibility as well as the drop in the motor speed. ASD and induction motor immunities need to be coordinated, being presented the required methodology. A complete study of the involved equipment immunities is needed in order to obtain a better behavior in the presence of voltage sags.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ),Vol. 1, Nº. 14
Pages:754-759 Date of Publication: 2016/5/20
ISSN: 2172-038X Date of Current Version:2016/5/4
REF:446-16 Issue Date: May 2016
DOI:10.24084/repqj14.446 Publisher: EA4EPQ

Authors and affiliations

Juan Carlos Gómez(1), Medhat M. Morcos(2)
1. Electrical Power System Protection Institute, Rio Cuarto National University. Argentina.
2. Electrical and Computing Engineering Department, Kansas State University. Manhattan, Kansas.USA

Key words

ASDs, Power Quality, Energy deficit, Speed drop, Voltage sags


[1] J. C. Gómez, Calidad de potencia: para usuarios y empresas eléctricas, Editorial EDIGAR S.A., ISBN: 987-97785-2-9, 2005.
[2] R.C. Dugan, M. McGranaghan, H.W. Beaty. Electrical Power Systems Quality. McGraw-Hill, New York, 1996.
[3] IEEE Standard 1346. IEEE Recommended Practice for Evaluating Electric Power System Compatibility with electronic process equipment. 1998.
[4] S. Djokic et al Sensitivity of personal computers to voltage sags and short interruptions, IEEE Transactions on Power Delivery, Vol. 20, pp. 375-383, 2005.
[5] M.H. Bollen, Understanding Power Quality Problems, Voltage Sags and Interruptions. IEEE Press, USA, 2000.
[6] J.C. Gómez, M.M. Morcos, Power Quality: Mitigation Technologies in a Distributed Environment, Chapter 10. Springer, London, 2007.
[7] A. Davis, J. Maire, M. Dessoude, Influence of voltage dips and sags characteristics on electric machines and drives: evaluation and perspective, Power Quality Assurance Conference, II, 1994.
[8] E. Collins, A. Mansoor, Effects of voltage sags on AC motor drives, IEEE 1997Annual textile, fiber and film industry conference, Greenville, SC, USA, May, pp. 68, 1997.
[9] J. L. Durán-Gómez, P. Enjeti, A low cost approach to improve the performanceof an adjustable speed drive (ASD) under voltage sags and short-term power interruptions, IEEE Applied Power Electronics Conference, New York, USA, February, pp.587-591, 1998.
[10] J.C. Gomez and M.M. Morcos, Specific energy concept applied to the voltage sag ride-through capability of sensitive equipment in DGembedded systems, IEEE Transactions on Power Delivery, vol. 18, no. 3, pp. 1590-1591, 2003.
[11] J.C. Gómez, M.M. Morcos, Coordination analysis of voltage sag and over-current protection in electrical systems with distributed generation, IEEE Transactions on Power Delivery, Vol. 20, pp. 214– 218, 2005.
[12] J.C. Gómez, M.M. Morcos, Voltage sag and recovery time in
repetitive events, IEEE Transactions on Power Delivery, Vol. 17,
pp. 1037-1043, 2002.
[13] J. C. Gómez, M. M. Morcos, Specific Energy Concept Applied to Electronic Equipment in Industrial Processes Having Distributed Generation, ICREPQ´12, March 28 – 30, Santiago de Compostella, Spain, 2012
[14] S. Djokic et al, Sensitivity of AC adjustable speed drives to voltage sags and short interruptions, IEEE Transactions on Power Delivery, Vol. 20, N° 1, January, pp. 494-505, 2005.