Search for dissertations about: "induction motor drives"
Showing result 1 - 5 of 9 swedish dissertations containing the words induction motor drives.
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1. On Control of Back-to-Back Converters and Sensorless Induction Machine Drives
Abstract : This thesis focuses on design and analysis of the control system structure for back-to-back converter squirrel-cage induction machine drives. Particularly, sensorless control of induction machines, meaning vector control without a mechanical shaft sensor, and vector control of pulsewidth-modulated (PWM) rectifiers are considered. READ MORE
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2. Investigation of Issues Related to Electrical Efficiency Improvements of Pump and Fan Drives in Buildings
Abstract : This thesis deals with issues related to efficiency of building related pump and fan drive systems. Different motor technologies are analyzed and a more detailed study oninverter fed Induction Machines (IM) is presented. READ MORE
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3. Voltage sag ride-through control of induction motor drives
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4. On sensorless control of induction motor drives at low stator frequencies
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5. Voltage sag ride-through of AC drives : control and analysis
Abstract : This thesis focuses on controller design and analysis for induction motor (IM) drives, flux control for electrically excited synchronous motors with damper windings (EESMs), and to enhance voltage sag ride-through ability and analysis for a wind turbine application with a full-power grid-connected active rectifier. The goal is to be able to use the existing equipment, without altering the hardware. READ MORE