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Showing 1 to 7 of 7 for “"electrical motors"”.
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Improvements in direct torque control of induction motors
Electrical motors have been increasingly employed for more than a century to convert electrical energy into mechanical energy. The wide variety of existing applications requires in many cases a very precise control of the electrical motor by means of a variable speed drive incorporating …
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Analysis of an energy efficient permanent magnet brushless universal motor
… The literature on synchronous and PM brushless motors is very extensive, although no studies have dealt with the concept of a PM brushless universal motor in any detail. The objective of this thesis is to develop an energy efficient, high performance, reliable and inexpensive electrical motor to …
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Performance analysis for a shaded-pole linear induction motor
… many such applications, fractional horse-power motors find ready use in small mechanisms where three-phase power supply is not available. In Southern Africa, these motors can be used is rural areas with simple reticulation systems, hence the renewed interest in the development of these low-power …
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Energy Intensity Determination in Wood Processing Sawmills
… aims to facilitate the accurate measurement of electrical energy intensity in sawmills by means of energy analysis and diagnostics using various data acquisition devices on electrical motors used in the manufacturing processes. Close to 90% of the electrical energy used in a typical sawmill is …
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Current based condition monitoring of electromechanical systems. Model-free drive system current monitoring: faults detection and diagnosis through statistical features extraction and support vector machines classification.
… and stator winding faults in a 3-phase induction motors from observation of motor line current supply input. The main aim is to avoid the consequence of unexpected failure of critical equipment which results in extended process shutdown, costly machinery repair, and health and safety problems. …
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An artificial skeletal muscle for use in pediatric rehabilitation robotics
… by current technology. Bulky, heavy, noisy electrical motors are typically used, which substantially reduce user compliance of powered orthoses. For greater acceptance of such devices, the desired requirements include: low weight, quiet operation, soft feel, and size and shape approximating …
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Parameter Identification And Fault Detection For Reliable Control Of Permanent Magnet Motors
<p>The objective of this dissertation is to develop new fault detection, identification, estimation and control algorithms that will be used to detect winding stator fault, identify the motor parameters and optimally control machine during faulty condition. Quality or proposed algorithms for Fault …