Induction motor thesis

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  • An Analysis of Induction Motor Applications: Thesis (Classic Reprint)?
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  • British Library EThOS: Analysis and control of five-phase induction motor drives.

Payami, S. Multiphase induction motor IM drives are being considered for high power applications due to its inherent advantages like low per phase power, low torque pulsation, high fault tolerant capability etc. For high performance applications, direct torque control DTC technique is most suitable for multiphase IM because of its simplicity and robustness to motor parameter variations.

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This is done to cancel out the resultant voltage vector in xy plane. Since the number of VVs generated for five-phase two-level inverter is Through this analysis the torque and flux band width is chosen and corresponding VVs are selected according to the position of stator flux vector. Then the problem of flux demagnetization at low speed operation using DTC technique by a two-level inverter is addressed in the thesis.

For this a modified lookup table is proposed. High speed linear induction motor efficiency optimization. Download ADA Author Johnson, Andrew Peter.

Advisor Kirtley, James L. Metadata Show full item record. Abstract One of the reasons linear motors, a technology nearly a century old, have not been adopted for a large number of linear motion applications is that they have historically had poor efficiencies.

This has restricted the progress of linear motor development. The concept of a linear motor as a rotary motor cut and laid out flat with a conventional rotary motor control scheme as a design basis may not be the best way to design and control a high-speed linear motor. End effects and other geometry subtleties of a linear motor make it unique, and a means of optimizing efficiency with both the motor geometry and the motor control scheme will be analyzed to create a High-Speed Linear Induction Motor LIM with a higher efficiency than what is possible with conventional motors and controls.

Mathematical models for the prediction of effects that are peculiar to DSLIM are formulated, and their overall effects on the performance of the proposed machine are analyzed.

Application of robust controller in large induction motor for mitigating voltage sags

These effects are used to generate a transient motor model, which is then driven by a motor controller that is specifically designed to the characteristics of the proposed DSLIM. Due to this DSLIM's role as a linear accelerator, the overall efficiency of the DSLIM will be judged by the kinetic energy of the launched projectile versus the total electric energy that the machine consumes. Collections 1.