pls send variable frequency drive using microcontroller ppt ....etc

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Variable Voltage And Variable Frequency drives

Presented By:
P.NATARAJU S.E.V.S.RAGHU VARMA
3rd year E.E.E. 3rd year E.E.E.

Abstract:-
Our varying industrial needs demand more precise control of the outputs of our basic electrical prime movers i.e, THE MOTORS. Basically dc motors are easy to control compared to their ac counter parts, but they have their own limitations with increase in capacity. Conversely ac motors in particular squirrel cag ....etc

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Please give the formula for Blank diameter & volume of 10% Torispherical Dish. ....etc

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i request to sent me the working of transformerless variable frequency drive ....etc

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Variable Frequency Drives

Introduction
¢ Variable Frequency Drives are devices which control the speed of alternating current(AC) electric motors by controlling the frequency of the supply voltage of the motor. ¢ Motor-driven systems are designed to handle peak loads. If the system is running at a reduced load for some period of time, it will lead to energy inefficiency. ¢ With Variable frequency drives and the ability to adjust the speed of the motor, enables you to match the motor output to load requirement ....etc

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From transmission error measurement to Pulley-Belt slip determination in serpentine belt drives: influence
Abstract —
Serpentine belt drives are often used in front
end accessory drive of automotive engine. The accessories
resistant torques are getting higher within new technological
innovations as stater-alternator, and belt transmissions
are always asked for higher capacity. Two kind of tensioners
are used to maintain minimum tension that insure power
transmission and minimize slip: dry friction or hydraulic
tensioners. An ....etc

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VARIABLE SPEED DC MOTOR DRIVE


DC MOTOR THEORY:
Inducing a Force on a Conductor.
There are two conditions which are necessary to produce a force on a conductor:
i. The conductor must be carrying current.
ii. The conductor must be within a magnetic field.
When these two conditions exist, a force will be applied to the conductor, which
will attempt to move the conductor in a direction perpendicular to the magnetic
field. This is the basic theory by which a ....etc

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i need this pdf file can you please make it available for me. thanx ....etc

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Abstract—This paper introduces the Spidergon-Donut (SD) on-chip interconnection network for interconnecting 1,000 cores in future MPSoCs and CMPs. Unlike the Spidergon network, the SD network which extends the Spidergon network into the second dimension, significantly reduces the network diameter, well below the popular 2D Mesh and Torus networks for one extra node degree and roughly 25 percent more links. A detailed construction of the SD network and a method to reshuffle the SD network's nodes for layout onto the 2D plane, and simple one-to ....etc

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ppt related to induction motor drive using seven level multi level inverter for energy saving in variable torque load applications
PPT RELATED TO INDUCTION MOTOR DRIVE USING SEVEN LEVEL MULTI LEVEL INVETER FOR ENERGY SAVING IN VARIABLE TORQUE LOAD APPLICATIONS ....etc

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