Results 91 to 100 of about 881,216 (213)
Four quadrant control of induction motors [PDF]
Induction motors are the nation's workhorse, being the motor of choice in most applications due to their simple rugged construction. It has been estimated that 14 to 27 percent of the country's total electricity use could be saved with adjustable speed ...
Hansen, Irving G.
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Observer-based Fault Detection and Diagnosis for Mechanical Transmission Systems with Sensorless Variable Speed Drives [PDF]
, 2015 Observer based approaches are commonly embedded in sensorless variable speed drives for the purpose of speed control. It estimates system variables to produce errors or residual signals in conjunction with corresponding measurements. The residual signals
Abusaad, Samieh +3 more
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SIMULATION OF AN AC DRIVE SYSTEM COMPRISING A CASCADE MULTILEVEL VOLTAGE INVERTER
Electrical engineering & Electromechanics, 2013 A technique for computer modeling of an AC drive system with a cascade multilevel voltage inverter is introduced. With the technique application, a Matlab-model of a variable-frequency electric drive functioning both in a quasi-stationary and in a ...
G.G. Zhemerov +2 more
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Guidelines for Weighting Factors Adjustment in Finite State Model Predictive Control of Power Converters and Drives [PDF]
, 2009 INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY () (.2009.VICTORIA, AUSTRALIA)Model Predictive Control with a finite control set has emerged as a promising control tool for power converters and drives.
Cortés, Patricio +7 more
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Comparison of the converter systems for a high-voltage variable-frequency AC drive
Electrical engineering & Electromechanics, 2013 Matlab-models of two converter systems of an 8 MW AC drive are developed, one based on a self-contained current inverter with cut-off diodes, the other based on a multilevel cascade voltage inverter.
G.G. Zhemerov +6 more
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Variable Frequency Drive Applications in HVAC Systems
, 2015 Building heating ventilation and air-conditioning (HVAC) systems are designed to operate at the peak load, which only occurs in a very short period of time throughout the year. One of the most effective ways to improve building energy efficiency is to utilize the variable frequency drives (VFDs).
openaire +3 more sources
NDT - Journal of Non-Destructive TestingNondestructive testing (NDT) has a crucial role in ensuring the reliability and safety of industrial systems. However, traditional methods typically rely on external sensors, which can lead to increased costs and added complexity.
Carl Lee Tolbert
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Variable frequency magnetic multivibrator Patent [PDF]
, 1964 Variable frequency magnetic coupled multivibrator with temperature compensated frequency control ...
Paull, S.
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Differential sound level meter [PDF]
, 1977 Small differences between relatively high sound pressure levels at two different microphone sites are measured by a device which provides electrical insertion voltages (pilot voltages) as a a means for continuously monitoring the gains of two acoustical ...
Zuckerwar, A. J.
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Advanced Engineering Research, 2012 The step change of the autonomous voltage inverter carrier frequency is proposed for operating enhancement of the frequency-controlled electric drive of the production machines in the «retarted and creeping» motion speed area.
Nikolay F. Karnaukhov +2 more
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