Four-Quadrant Control of Switched Reluctance Motors
Presented By:
Dr. Iqbal Husain
Department of Electrical Engineering
The University of Akron
Akron, OH 44325-3904
Introduction Switched reluctance motor (SRM) drives are simpler in construction compared to induction and synchronous types of machine. Their combination with power electronic controllers may yield an economical solution. The switched reluctance motor with passive rotor has a simple construction, but the solution of its mathematical model is rela ....etc

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ABSTRACT

This paper presents a scheme for designing a kind of wireless charging system aimed to provide power transmission for personal mobile devices such as cell phone. This scheme consists of three parts: wireless power transmission design, wireless signal transmission design and charging manage design. A circular array consisting of some antenna elements is employed in the scheme as transmit access of power and signal. In the supposed indoor condition, the transfer efficiency can up to 66%. The charging manage adopt a close-loop optimal ....etc

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ppt of Ultra-Large Gain Step-Up Switched-Capacitor
DC-DC Converter With Coupled Inductor for
Alternative Sources of Energy ....etc

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i need to present a seminar which basically consists of wat is a switched capacitor circuit ,wat it is ,how it works and applications etc ....etc

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ASTN (Automatic Switched Transport Network) allows traffic paths to be set up through a switched network automatically. The term ASTN replaces the term ASON (Automatically Switched Optical Network) and is often used interchangeably with GMPLS (Generalized MPLS). This is not completely correct as GMPLS is a family of protocols, but ASON/ASTN is an optical/transport network architecture. The requirements of the ASON/ASTN architecture can be satisfied using GMPLS protocols developed by the IETF or by GMPLS protocols that have been modified by the ....etc

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The Switched Reluctance Generator for Wind Power Conversion

The use of wind energy has become increasingly important as a renewable energy source, so there is an increasing interest in exploiting it using a Switched Reluctance Machine (SRM).

Introduction

In the last decades, the SRM serves as an important alternative in various applications both within the industrial and domestic markets, as a motor showing good mechanical reliability, high torque-volume ratio and high efficiency,and it is of low cost.Eventhough SRM is easy to build ....etc

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what is the advantages of circuit switching in packet switching?? plz give me answer

what is the advantages of circuit switching in packet switching?? plz give me answer


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Prepared by:
Debashish Mishra




BACKGROUND

The significance of power factor (PF) correction is reflected in the large number of documents addressing this subject, in the engineering design effort, and in the numerous industrial plants that manufacture equipment for the control of reactive power and filtering of current harmonics . Some of the benefits derived from correct PF adjustment are:
1. reduced energy loss;
2. released generation, transmission, distribution, and substation cap ....etc

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SWITCHED RELUCTANCE MOTORS

HISTORY
INVENTED BY DAVIDSON OF SCOTLAND IN 1838
WALKER INVENTED VARIABLE RELUCTANCE MOTOR IN 1920
BEDFORD AND HOFT FILED US PATENTS ON SRM IN 1971
HEWLETT PACKARD- USED SRM IN VOLUME APPLICATION (DRAFTMASTER PLOTTER)

INTRODUCTION
Pple of stepper motor; magn material suspended in magn field align in direction of field due to torque
Basically stepper motor;i.e rotate through fixed angle when input pulse is applied
Speed proportional to pulse frequency; ....etc

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