dc.contributor | Middle Eastern Turbomachinery Symposium (1st : 2011) | |
dc.creator | Kocur, John | |
dc.creator | Muench, Maximilian | |
dc.date.accessioned | 2018-10-12T19:27:33Z | |
dc.date.available | 2018-10-12T19:27:33Z | |
dc.date.issued | 2011 | |
dc.identifier.uri | https://hdl.handle.net/1969.1/172578 | |
dc.description | Lecture | en |
dc.description.abstract | The popularity of VFD motors in compressor trains
has increased in recent years. Increased process flexibility is a
primary consideration for implementation of VFD systems.
However, this comes at a cost of increased mechanical and
electrical complexity. Problems rarely experienced with single
speed motors have become more likely with VFD's. These
include impacts on the torsional behavior leading to component
failure and extended downtimes.
VFD's can excite the torsional system in several ways.
This paper examines the impact of white noise on the torsional
response of VFD compressor trains and contrasts it against the
response to single frequency harmonic excitation. The
characteristics of white noise, noise modeling characteristics
for torsional response, and noise generation techniques are
examined. Generation of a frequency banded noise signal is
presented using a commonly used math modeling code.
Two case studies are presented representing VFD
compressor trains found in the LNG industry. Both
experienced torsional problems related to the VFD and, in one
case, led to a coupling failure and release of parts from the
train. In the examination of these trains, a single frequency
harmonic (SFH) sweep and banded Gaussian white noise
(GWN) encompassing the dynamic response envelop of the 1st
TNF, are used as inputs to the torsional analysis. | en |
dc.format.medium | Electronic | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | |
dc.publisher | Turbomachinery Laboratory, Texas A&M Engineering Experiment Station | |
dc.relation.ispartof | Middle East Turbomachinery Symposia. 2011 Proceedings. | en |
dc.subject.lcsh | Turbomachines | en |
dc.title | IMPACT OF ELECTRICAL NOISE ON THE TORSIONAL RESPONSE OF VFD COMPRESSOR TRAINS | en |
dc.type.genre | conference publication | en |
dc.type.material | Text | en |
dc.format.digitalOrigin | born digital | en |