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Title: CHAIN DRIVES IN LOW TORQUE DRIVES AND REDUCING PULSATIONS
Page Link: CHAIN DRIVES IN LOW TORQUE DRIVES AND REDUCING PULSATIONS -
Posted By: projectsofme
Created at: Friday 01st of October 2010 10:47:57 PM
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CHAIN DRIVES IN LOW TORQUE DRIVES AND REDUCING PULSATIONS
INTRODUCTION TO DRIVES

Mechanical components used for power transmission. It may be belt, chain or gear depending on engine design parameters like - Distance between crankshaft and camshaft, engine maximum speed, engine-torque and engine construction cost. - Power transmission is done from one shaft to another shaft which may or may not rotate at same spe ....etc

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Title: difference between chopper fed drives and converter fed drives pdf
Page Link: difference between chopper fed drives and converter fed drives pdf -
Posted By: Guest
Created at: Friday 20th of November 2015 04:27:01 PM
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difference between chopper fed drives and converter fed drives pdf ....etc

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Title: SPEED CONTROL OF SYNCHRONOUS MOTOR BY USING VARIABLE FREQUENCY DRIVES
Page Link: 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
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SPEED CONTROL OF SYNCHRONOUS 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 d ....etc

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Title: pdf of variable voltage and variable frequency
Page Link: pdf of variable voltage and variable frequency -
Posted By: Guest
Created at: Tuesday 16th of October 2012 02:30:59 AM
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i need this pdf file can you please make it available for me. thanx ....etc

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Title: VARIABLE SPEED DRIVES VSD
Page Link: VARIABLE SPEED DRIVES VSD -
Posted By: seminar projects crazy
Created at: Friday 30th of January 2009 12:44:28 PM
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Every kW of energy saved is as good as same amount of energy generated. Such is the scarcity of energy in India. Energy can be saved by using Variable Speed Drives (VSD) for applications like Pumps and Fans. Employing conventional techniques, which uses a motor running at full speed and flow pressure being created by throttle valve, a lot of energy is wasted due to electric, thermal and mechanical losses. By replacing conventional arrangement with AC drives, tremendous amount of energy can be saved. However, traditional approach to flow control ....etc

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Title: STEPLESS SPEED DRIVES CONTINUOUSLY VARIABLE TRANSMISSION CVT
Page Link: STEPLESS SPEED DRIVES CONTINUOUSLY VARIABLE TRANSMISSION CVT -
Posted By: seminar class
Created at: Friday 13th of May 2011 04:14:40 AM
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STEPLESS SPEED DRIVES & CONTINUOUSLY VARIABLE TRANSMISSION (CVT)
INTRODUCTION

A continuously variable transmission (CVT) is a transmission that can change steplessly through an infinite number of effective gear ratios between maximum and minimum values.
This contrasts with other mechanical transmissions that offer a fixed number of gear ratios.
The flexibility of a CVT allows the driving shaft to maintain a constant angular velocity over a range of output velocities.
ADVANTAGES
This can provide better ef ....etc

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Title: SPEED CONTROL OF SYNCHRONOUS MOTOR BY USING VARIABLE FREQUENCY DRIVES
Page Link: SPEED CONTROL OF SYNCHRONOUS MOTOR BY USING VARIABLE FREQUENCY DRIVES -
Posted By: project report helper
Created at: Saturday 25th of September 2010 01:01:38 AM
speed control of synchronous motor by variable frequency, embedded based radio frequency speed control of d c motor, ppt on synchronous motor, ac synchronous motormicro motors, variable frequency generator using 89c51, speed control synchronous motor, speed control of dc drives,




SPEED CONTROL OF SYNCHRONOUS 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 resista ....etc

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Title: variable frequency drive
Page Link: variable frequency drive -
Posted By: project report tiger
Created at: Monday 01st of March 2010 02:31:26 AM
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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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Title: Variable Voltage And Variable Frequency drives full report
Page Link: Variable Voltage And Variable Frequency drives full report -
Posted By: seminar presentation
Created at: Tuesday 18th of May 2010 11:43:34 AM
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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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Title: Discrete Variable Frequency Soft Starting on DSP-based Voltage Controller-Fed
Page Link: Discrete Variable Frequency Soft Starting on DSP-based Voltage Controller-Fed -
Posted By: seminar class
Created at: Thursday 05th of May 2011 12:45:10 AM
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Discrete Variable Frequency Soft Starting on DSP-based Voltage Controller-Fed IM Drive
Abstract

GThyristorized soft starters are being used as inductionmotor starters in fan or pump drives, ere, the principleofwhich is based on the control of variable voltage and constantfrequency. One ofthe demerits of the soft starters is that a smallreduction in voltage produces a considerable drop in electromagnetictorque, which may cause the motor with loads failureto start. A new control strategy is proposed to improve electromagnetictorque at st ....etc

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