Magnetless Motor
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
mechanical engineering crazy
Active In SP
**

Posts: 226
Joined: Jul 2009
#1
30-08-2009, 12:20 AM


Variable-reluctance (VR) or switched-reluctance (SR) motors also can operate as brushless dc motors. VR motors have salient poles on a soft-iron rotor. Motor action results from interaction between the rotor poles and a rotating field set up by the stator windings. The construction yields high torque-to-inertia ratios.

VR motors cost less than corresponding permanent-magnet brushless types. And because VR types call for unidirectional current, amplifiers for them cost less than those for conventional types. The motors are increasingly used in motion-control systems that require very high torque or high horsepower -- levels where the cost of magnets in conventional PM motors become excessive.

A 150-pole version of a variable-reluctance motor is widely used for powering robots and other machines calling for slow speed and precise positioning. The motors exhibit much wider bandwidths -- typically over 80 Hz -- than conventional motors. A 32-bit microprocessor-based adaptive controller adjusts frequency response in real time.

Another motor recently developed is generally classified as variable reluctance. But the products are sometimes thought of as hybrid permanent-magnet motors because they contain two permanent magnets mounted axially on the rotor. The motors are smaller, less costly, and operate at higher speeds than conventional dc brushless motors. They also develop up to 2,000 oz-in. torque and operate up to 5,000 rpm
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Reply
seminar girl
Active In SP
**

Posts: 519
Joined: Aug 2012
#2
17-08-2012, 09:59 AM

to get information about the topic "Magnetless motors" full report ppt and related topic refer the link bellow

topicideashow-to-magnet-less-motors

topicideashow-to-magnetless-motor
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  Speed control of Brushless DC motor with DSP controller using Matlab seminar tips 2 1,111 10-01-2014, 12:45 PM
Last Post: seminar project topic
  Speed Control of Single Phase Induction Motor Using Short Message Service ppt seminar ideas 1 1,859 06-11-2013, 11:31 AM
Last Post: Guest
  Switched Reluctance Motor Report seminar projects maker 0 641 30-09-2013, 02:54 PM
Last Post: seminar projects maker
  Effect of Voltage and Load Variations on Efficiencies of a Motor-Pump System Report seminar projects maker 0 554 12-09-2013, 12:39 PM
Last Post: seminar projects maker
  INTERFACING STEPPER MOTOR WITH 8051 study tips 0 313 03-08-2013, 02:54 PM
Last Post: study tips
  DIRECT TORQUE CONTROL OF INDUCTION (ANALYSIS AND SIMULATION) MOTOR pdf study tips 0 459 18-07-2013, 04:04 PM
Last Post: study tips
  motor speed monitoring over gsm mobile sssaravana61 1 559 16-07-2013, 09:52 AM
Last Post: study tips
  V/F Control of Squirrel Cage Induction Motor Drives Without Flux or Torque study tips 0 337 26-06-2013, 01:05 PM
Last Post: study tips
  DC MOTOR pdf study tips 0 369 07-06-2013, 12:48 PM
Last Post: study tips
  Single Phase Induction Motor pdf study tips 0 350 30-05-2013, 03:33 PM
Last Post: study tips