☑ Linear Induction Motors Pdf

6 shows the necessary emergency braking distance properties of the traction system according to traveling speed. Similarly to the conventional rotary motors the secondary resistance can be split into two.

Design Of Single Sided Linear Induction Motor Slim For

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Pdf Efficiency Of The Linear Induction Motor Lim

Performance analysis of the linear induction motor for the deep underground high speed gtx 202 maximum speed should be around 345 km 1 6.

Linear induction motors pdf. 3 phase induction motors ee 340. In this type of motor the stator and rotor are called primary and secondary respectively. Effect of varying rotor resistance by adding external resistance to wound rotor.

A lim operates under the same principles as its ac rotary motor counterpart typically powered by a three phase voltage scheme with a force that is produced by a moving magnetic field 1. A linear induction motor or lim is a special type of induction motor used to achieve rectilinear motion rather than rotational motion as in the case of conventional motors. Next time i will conclude my review of linear motor technology by taking a look at thrust tube linear motors.

Equivalent circuit of induction motor with rotating travelling magnetic field. As shown in fig. Characteristically linear induction motors have a finite primary or secondary length which generates end effects whereas a conventional induction motor is arranged in an endless loop.

5 the train can reach a speed of 170 kmh within 45 km. Linear induction motors are quite an engineering marvel to convert a general motor for a special purpose with more or less similar working principle thus enhancing its versatility of operation. This energy is converted to different forms.

As a result they often require forced air or water cooling to achieve published specifications. The stator is cut axially and spread out flat. Attention was confined to the accelerated part of the motion.

A linear induction motor lim is a specific type of alternating current ac motor designed to produce motion in a straight line. In a conventional round rotor induction motor the behavior of the machine is only needed to be calculated ov er one pole pi tch. A linear induction motor lim is an advanced version of rotary induction motor which gives a linear translational motion instead of the rotational motion.

Induction motors with rotor helical motion 253 difference is in the rotor slip which for rotary linear motor depends on both rotary and linear rotor speeds. The electric energy generated purchased by consumers for different needs. The paper describes the features needed in the design of a linear induction motor that will accelerate a mass of 200 kg to 1200 ms in a distance of 1500 m.

Deceleration to rest in the second 1500 m of track can be approached with the same techniques. Where does the power go. Linear induction motor modeling.

Linear induction motors are less efficient than permanent magnet linear motors and thus produce more heat for a given continuous force output. A linear induction motor lim is an alternating current ac asynchronous linear motor that works by the same general principles as other induction motors but is typically designed to directly produce motion in a straight line.