ppt on a combination of shunt hybrid power filter and thyristor controlled reactor for power quality

This paper proposes a combined system of a thyristor-controlled reactor (TCR) and a shunt hybrid power filter (SHPF) for harmonic and reactive power compensation. The SHPF is the combination of a small-rating active power filter (APF) and a fifth-harmonic-tuned LC passive filter. The tuned passive filter and the TCR form a shunt passive filter (SPF) to compensate reactive power. The small-rating APF is used to improve the filtering characterist ....etc

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report on Zero Standby Power Remote Control System using Light Power Transmission ....etc

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sir please give me the circuit diagram and schematic diagram of this project (scr power control by ir remote) and related information. ....etc

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The project is designed to control AC power to a load by using firing angle control of thyristor. Efficiency of such power control is very high compared to any other method.

The project uses zero crossing point of the waveform which is detected by a comparator whose output is then fed to the microcontroller. The microcontroller provides required delayed triggering control to a pair of SCRs through opto isolator interface.

Finally the power is applied to the load through the SCRs in series. This project uses a microcontroller from 8051 family ....etc

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speed control of dc motor using thyristor dual converter with pid controller

ABSTRACT

The paper describes the design, construction and testing of a closed-loop system for the speed control of a separately excited d.c. motor fed from a dual converter. The dual converter makes possible regenerative braking and reversal of direction of rotation. There is only one firing unit and the firing pulses are diverted to the appropriate converter by a master controller. There are three control loops: one for armature current control, one for adjusting th ....etc

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I am looking for thyristor firing angle through microprocessor.please give some ideas with circuit diagram and programming..thanks.. ....etc

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To get full information or details of thyristor firing angle matlab please have a look on the pages

http://seminarsprojects.net/Thread-phase-angle-control-of-scr-using-at89c51?pid=42956

if you again feel trouble on thyristor firing angle matlab please reply in that page and ask specific fields in thyristor firing angle matlab ....etc

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INTRODUCTION

Boost converter is one of the most popular choices for high-quality rectification. The converter is supplied from a full-wave rectified line voltage and operated so that the input current follows the input voltage. The input current shaping can be achieved using a number of techniques. When the converter is operated at fixed frequency and fixed duty ratio in the discontinuous conduction mode (DCM), the low- frequency component of the input current is approximately proportional to the input ....etc

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ABSTRACT
The Integrated Gate Commutated Thyristor (IGCT) combines the advantages of the hard driven GTO thyristor, including its dramatically improved turn- off performance, with technological breakthroughs at the device, gate-drive and application levels. Homogenous switching area of the IGCT up to the dynamic avalanche limits. Snubber circuits are no longer needed. Improved loss characteristics allow high frequency applications extending into the kHz range. A new IGCT device ....etc

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Thyristor RAM ('T-RAM) is a new type of DRAM computer memory invented and developed by T-RAM Semiconductor, which departs from the usual designs of memory cells, combining the strengths of the DRAM and SRAM: high speed and high volume. This technology exploits the electrical property known as negative differential resistance and is called thin capacitively-coupled thyristor used to create memory cells capable of very high packing densities. This memory is highly scalable and already has a storage density that is several times higher than found ....etc

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