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slip energy recovery


Posted by: wrijul
Created at: Saturday 05th of November 2011 08:46:25 AM
Last Edited Or Replied at :Saturday 05th of November 2011 08:46:25 AM
slip energy recovery , slip, slip ring , slip power recovery, electric motors , induction machine, variable speed drives , wound rotor, speed control of induction motor , dc motors, dc motor , variable speed motors, wound rotor induction motor , induction motor, variable frequency drive , variable frequency drives, energy , recovery, slip energy recovery , slip power recovery, slip power recovery ppt , slip energy recovery in slip ring induction motor, slip recovery drives ppt , slip energy recovery project,
Hi t..................[:=> Show Contents <=:]



feed control to reduce over speed


Posted by: Sasikumar9019
Created at: Thursday 10th of February 2011 12:48:13 PM
Last Edited Or Replied at :Thursday 10th of February 2011 12:48:13 PM
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i need to do a project in feed control during..................[:=> Show Contents <=:]



SPEED CONTROL OF SYNCHRONOUS MOTOR BY USING VARIABLE FREQUENCY DRIVES


Posted by: project report helper
Created at: Saturday 25th of September 2010 12:58:36 AM
Last Edited Or Replied at :Saturday 25th of September 2010 12:58:36 AM
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US MOTOR BY USING VARIABLE FREQUENCY DRIVES



ABSTRACT :

A novel open-loop speed control method for induction motors that provides high output torque and nearly zero steady-state speed error at any frequency is presented. The control scheme is based on the popular constant volts per hertz (V/f) method using low-cost open-loop current sensors. Only stator current measurements are needed to compensate for both stator resistance drop and slip frequency. The scheme proposed fully compensates for the current±resis..................[:=> Show Contents <=:]



Variable Voltage And Variable Frequency drives full report


Posted by: seminar presentation
Created at: Tuesday 18th of May 2010 11:43:34 AM
Last Edited Or Replied at :Thursday 04th of October 2012 01:50:25 AM
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n number)
Synchronous motors operate at the synchronous speed determined by the above equation. The speed of an induction motor is slightly less than the synchronous speed.
Example
A 4-pole motor that is connected directly to 60 Hz utility (mains) power would have a synchronous speed of 1800 RPM:
120 x 60 = 1800 rpm
4
If the motor is an induction motor, the operating speed at full load will be about 1750 RPM.
If the motor is connected to a speed controller that provides power at 40 Hz, the synchronous speed would be 1200 RPM:
120 x 40 = 1200 rpm
4
Voltage induced ..................[:=> Show Contents <=:]



variable frequency drive


Posted by: project report tiger
Created at: Monday 01st of March 2010 02:31:26 AM
Last Edited Or Replied at :Thursday 14th of October 2010 08:29:48 PM
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AIR Technologies..................[:=> Show Contents <=:]



Traction system Traction drives


Posted by: nitz456@gmail.com
Created at: Tuesday 16th of February 2010 02:39:22 AM
Last Edited Or Replied at :Saturday 18th of February 2012 04:33:39 AM
Traction system Traction drives , ac and dc motorsTraction, ac and dc motorsdc traction motor , variable speed drives, variable frequency drives , electric traction drives, electric motors , dc motors, variable frequency drive , dc motor, dc machines , electrical drives, electric drives , traction motor, dc traction motor , system, drives , traction system, traction system traction drives , traction drives,
Please give me some project idea on traction system or traction drives . also if possible proj..................[:=> Show Contents <=:]



Integrated Power Electronics Module


Posted by: electronics seminars
Created at: Thursday 31st of December 2009 08:09:35 AM
Last Edited Or Replied at :Wednesday 19th of December 2012 11:56:45 PM
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lso the system power density is increased by a factor of 3.6.

ADVANTAGES AND DISADVANTAGES
There are several advantages for integrating power electronics system using the IPEM concept. The main advantages are
1. Modular approach:
This modular approach reduces the design and implementation time cycles as well as simplifies the assembly process.
2. Improved usage of space
The reduction in volume increases the power density and reduces the profile of the system.
3. Reduction of components and inter connects.
This improves the system reliability and also increases the speed.
4. Reduc..................[:=> Show Contents <=:]



Metal matrix composite


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:05:14 PM
Last Edited Or Replied at :Saturday 20th of September 2008 11:05:14 PM
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mon modification for racers, allowing the top speed to be increased far beyond the safe operating speeds of a standard aluminium driveshaft.
Honda has used aluminium metal matrix composite cylinder liners in some of their engines, including the B21A1, H22A and H23A, F20C and F22C, and the C32B used in the NSX. Toyota has since used metal matrix composites in the Yamaha designed 2ZZ-GE engine which is used in the later Lotus Lotus Elise S2 versions as well as Toyota car models. Porsche also uses MMCs to reinforce the engine's cylinder sleeves in the Boxster and 911.
The F-16 Fighting Falcon u..................[:=> Show Contents <=:]



Continuously variable transmission CVT


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 10:46:48 PM
Last Edited Or Replied at :Monday 27th of September 2010 05:41:49 AM
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demand for further development. This cycle of improvement will ultimately give CVTs a solid foundation in the world's automotive infrastructure.

CVT Theory & Design

Today's automobiles almost exclusively use either a conventional manual or automatic transmission with multiple planetary gear sets that use integral clutches and bands to achieve discrete gear ratios . A typical automatic uses four or five such gears, while a manual normally employs five or six. The continuously variable transmission replaces discrete gear ratios with infinitely adjustable gearing through one of several ba..................[:=> Show Contents <=:]



Cell Integration into a Manufacturing System


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 10:42:55 PM
Last Edited Or Replied at :Wednesday 04th of August 2010 09:52:02 AM
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ng system. In-process parts are controlled by the system, but storage of the finished parts and storage of the bar stock and bar stock sections are controlled at the factory level.

? Maintenance functions required in the factory are not part of the system. These include the maintenance of the machines, robots, and computers, and also of the software required to run them.

? The CAD/CAM (Computer Aided Design / Computer Aided Manufacturing) system mentioned in section 4.4.2 will reside in computers outside the manufacturing system. The manufacturing system computer will store parts program..................[:=> Show Contents <=:]



Continuously Variable Transmission


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 10:42:37 PM
Last Edited Or Replied at :Friday 13th of November 2009 04:46:27 AM
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assle with constant gear changing. In such a situation CVTs or continuous variable transmission proves it usefulness. It is advantageous to use CVT over manual transmission as the engine will always operate at the optimum regime and throttle position. Thereby it could maximize the power output relative to fuel position.


The continuously variable transmission will be commercialized within the next few years. This trial blazing technology has the potential to revolutionize the automotive industry. The superior performance attained by this technology ahs been hitherto unimaginable. The..................[:=> Show Contents <=:]



Variable Length Intake Manifold VLIM


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 10:38:39 PM
Last Edited Or Replied at :Saturday 20th of September 2008 10:38:39 PM
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distribute the fuel and form a homogeneous air-fuel mixture which ignites without engine knocking.

At low rpm, the speed of the airflow is increased by directing the air through a longer path with limited capacity, but the shorter and more capable path opens when the load increases so that the greater amount of air can enter the chamber.

In DOHC designs, the air paths are often connected to a separate intake valves so the shorter path can be excluded by inactivating the intake valve itself.


Pressurization - A tuned intake path can have a light pressurizing effect similar to a low-..................[:=> Show Contents <=:]



Variable Valve Timing In IC Engines


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 12:24:39 PM
Last Edited Or Replied at :Saturday 08th of January 2011 10:37:30 PM
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ansition from one position to the other, while the cam setting determines the timing of the valve.

In a typical four-stroke engine, the inlet valve is set to open before TDC (top dead centre), towards the end of the exhaust stroke and close after BDC (bottom dead centre), at the start of the compression stroke. While the intake valve should open, theoretically at TDC, most engines utilise an intake valve opening, which is timed to occur a few degrees prior to the arrival of the piston at TDC on the exhaust stroke. This is because by the time the valve becomes fully open, the piston would ha..................[:=> Show Contents <=:]



Metal-Matrix Composite Processing


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 12:10:16 PM
Last Edited Or Replied at :Saturday 19th of May 2012 02:55:54 AM
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other particulate fiber or whiskers reinforcements to significantly increase stiffness or improve the thermophysical properties of components.The application arena for for metal matrix composites is continually expanding as the cost effectiveness mature.Using various properties of metal matrix composites,they can be widely applied in the following fields.
1.Space
2.Commercial
3.Marine
4.Medical.
Composite materials have high specific stiffness and strength for weight savings and durability. They have outstanding wear resistance for longevity and reduced maintenance. High thermal con..................[:=> Show Contents <=:]



VANOS Variable Nockenwellen Steuerung


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:56:59 AM
Last Edited Or Replied at :Sunday 29th of September 2013 05:23:13 AM
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VA..................[:=> Show Contents <=:]



VANOS Variable Nockenwellen Steuerung


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:56:59 AM
Last Edited Or Replied at :Sunday 29th of September 2013 05:23:13 AM
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es. VANOS varies the duration of the intake valves by moving the position of the camshafts in relation to the drive gear. This movement varies from 6degrees of advanced to 6degrees of retarded camshaft timing. BMW recently began offering 'double' VANOS, which operates on th..................[:=> Show Contents <=:]



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