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 reduced c ....etc

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INTRODUCTION

Brushless Direct Current (BLDC) motors are one of the motor types rapidly gaining popularity. BLDC motors are used in industries such as Appliances, Automotive, Aerospace, Consumer, Medical, Industrial Automation Equipment and Instrumentation. As the name implies, BLDC motors do not use brushes for commutation; instead, they are electronically commutated.
BLDC motors have many advantages over
brushed DC motors and induction motors. A few of
these are:
Better speed versus torque chara ....etc

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images of high trnsmission and circuit iagram of the ehvac system ....etc

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High-voltage fuse blower indicator with voice-based announcement system is a type of circuit used to alert the user in the event of a fuse in any electrical equipment being fused. The technology used in electrical equipment has been developed in a wide range. At the same time it is necessary to use the systems with automation and high security. This article shows the study of fuses, the types of faults that occur in a system, and to detect if a fuse has blown out of the circuit with the help of power sensors, micro-controller LEDs and voice ann ....etc

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name dinesh
mini projet report
Voltage source inverters (VSI) have been widely used in uninterruptible power supplies, unified power flow controllers or unified power quality conditioners, and distributed generation systems (DGS). VSIs are inherently efficient, compact, and economical devices used to control power flow and provide quality supply. VSIs can be classified as voltage-controlled VSIs (VCVSIs) and current-controlled VSIs (CCVSIs), depending on their control mechanism. In this paper, a detailed comparison of VCVSIs and CCVSIs for DG ....etc

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plzz need sme previous question pprs of ehv
plz help me.. ....etc

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looking for extra high voltage ac transmission abstract download ....etc

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High-voltage direct current



A high-voltage, direct current (HVDC) electric power transmission system uses direct current for the bulk transmission of electrical power, in contrast with the more common alternating current systems. For long-distance transmission, HVDC systems may be less expensive and suffer lower electrical losses. For underwater power cables, HVDC avoids the heavy currents required by the cable capacitance. For shorter distances, the higher cost of DC conversion equipment compared to an AC system m ....etc

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To get full information or details of high voltage direct current transmission please have a look on the pages

http://seminarsprojects.net/Thread-high-voltage-direct-current

http://seminarsprojects.net/Thread-ultra-high-voltage-transmission

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to get information about the topic high voltage direct current power transmission system with metallic return conductor full report ,ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-12-pulse-hvdc-trnsmission-system-by-using-igbt-values

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