Efficiency Assessment of Induction Motors Drives Operating Under Shaft Misalignment Conditions

Double-Cage Induction motors behavior under Flicker Conditions

assessment of the efficiency of s.p.g.c refineries using network dea

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Global Observability Analysis of Induction Motors under Sensorless Conditions

The problem of achieving high performance from induction motor based drives without sensing mechanical variables, i.e. high performance sensorless control is a widely studied topic, specially in the last decade. Several works point out some operating regimes where reliable control and speed estimation fail. However, a complete understanding of the nature of these limitations does not exist due ...

double-cage induction motors behavior under flicker conditions

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Radial Lip Seals Efficiency under Dynamic Operating Conditions

This paper describes experimental and numerical procedures to estimate friction torque on a rotating shaft due to radial elastomeric seals. Two different test rigs have been built, in order to highlight the relationship between the overall friction and the local behaviour of each lip portion in presence of dynamic eccentricities. A direct measurement has been performed with a rotating shaft mac...