Analysis of Permanet Magnet Linear Induction Motor (PMLIM) using Finite Element Method
ABSTRACT The majority of electrical machines are designed to produce the rotary motion, there by exploiting the blessing of circularity which man has enjoyed since the discovery of the wheel. Electromagnetic forces may also be employed to produce the linear motion resulting in linear motion electrical machines. The paper provides an overview of the modern field simulation techniques available to assist in the design and performance prediction of electromagnetic devices, linear induction motor. This paper deals with the three typical performance characteristics of the permanent linear induction motor which affects the performance of the machine. The Comsol multiphysics software used here is based on finite element or related techniques in very advanced and provides a reliable and accurate results.
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ABSTRACT: The development of electromagnetic devices as machines, transformers, heating devices confronts the engineers with several problems. For the design of an optimized geometry and the prediction of the operational behaviour an accurate knowledge of the dependencies of the field quantities inside the magnetic circuits is necessary. This paper provides the eddy current and core flux density distribution analysis in linear induction motor. Magnetic flux in the air gap of the Linear Induction Motor (LIM) is reduced to various losses such as end effects, fringes, effect, skin effects etc. The finite element based software package COMSOL Multiphysics Inc. USA is used to get the reliable and accurate computational results for optimization the performance of Linear Induction Motor (LIM). The geometrical characteristics of LIM are varied to find the optimal point of thrust and minimum flux leakage during static and dynamic conditions.Journal of Engineering Science and Technology 01/2011; 6(6-1823-4690):769-776.