Multilevel voltage source converters are emerging as a new breed of power converter options for high-power applications. Here, staircase voltage wave is generated from several levels of dc capacitor voltages. the voltage unbalance between different levels is the major disadvantage of multilevel converters. voltage clamping or capacitor charge control are the main techniques used to solve this. The following types of multilevel voltage source converters are described here:
a)diode-clamp: The diode-clamp method can be applied to highe ....etc

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Abstract—

This paper proposes a new soft-switched continuousconduction- mode (CCM) boost converter suitable for high-power applications such as power factor correction, hybrid electric vehicles, and fuel cell power conversion systems. The proposed converter achieves zero-voltage-switched (ZVS) turn-on of active switches in CCM and zero-current-switched turn-off of diodes leading to negligible reverse-recovery loss. The components’ voltage ratings and energy volumes of passive components of the proposed converter are greatly reduce ....etc

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Electrical Drives of Machine Tools
Introduction
The arrangement of the motor nearby the operative member and also the use of variable-speed electric motors make it possible to simplify mechanical transmissions as well as the construction of the machine.
This helps to improve machine-tool design and considerably reduce the physical force required to handle the machine.
Introduction
One or more electric motors driving the operative members of the machine tool make up the machine's essential components.
T ....etc

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Simona Coman1, V. Comnac1, Member IEEE, Cr. Boldisor1, D.C. Dumitrache2
1Automation Department, “Transilvania” University of Brasov, 5 M.Viteazu Str.,
500174 Brasov, Romania, phone/fax: +40 0268 418836,
2 Department of Automatic Control, Technical University of Cluj-Napoca,
26-28 Gh. Baritiu Str., 400027 Cluj-Napoca, Romania



Abstract –

The distributed control systems with communication
networks are used in many industrial applications. These systems
are often re ....etc

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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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difference between chopper fed drives and converter fed drives pdf ....etc

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1. AC/DC power conversion interface for self-excited induction generator
2. Analysis and implementation of Vienna Rectifiers in Distribution Power System
....etc

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i wANT DOWNLOad this book Power Converters And AC Electrical Drives plz help me i neet it ....etc

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I need some ppts regarding special electrical drives like about SRM, BLDC, Stepper motors, Synchronous reluctance motors.. Pls i need it quickly ....etc

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(1)Power modulator:
Resistance controllers
Eddy current drive
MG set
The function of the power modulator is to change the electric energy of the source as per load torque speed characteristics.
(2)Control circuit:
The function of control circuit is to control - the speed, starting characteristics and braking characteristics
(3)Motor:
The motor can be ac or dc, as per the application of use of the drive.
(4)Sensing unit:
....etc

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