Wednesday 5 September 2012

A ZVS Grid-Connected Three-Phase Inverter projects in chennai

BE,ME,BTECH,MTECH,MPHIL,PHD WORKS POWER ELECTRONICS PROJECTS 
trichynewproject@gmail.com
ABINESAN - 9003012154

A ZVS Grid-Connected Three-Phase Inverter

Abstract
A six-switch three-phase inverter is widely used in a high-power grid-connected system. However, the antiparallel diodes in the topology operate in the hard-switching state under the traditional control method causing severe switch loss and high electromagnetic interference problems. In order to solve the problem, this paper proposes a topology of the traditional six-switch three-phase inverter but with an additional switch and gave a new space vector modulation (SVM) scheme. In this way, the inverter can realize zero-voltage switching (ZVS) operation in all switching devices and suppress the reverse recovery current in all antiparallel diodes very well. And all the switches can operate at a fixed frequency with the new SVM scheme and have the same voltage stress as the dc-link voltage. In grid-connected application, the inverter can achieve ZVS in all the switches under the load with unity power factor or less. The aforementioned theory is verified in a 30-kW inverter prototype.


Power electronics used drive the single or three phase motor drive in real time projects don here

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BE,ME,BTECH,MTECH,MPHIL,PHD WORKS POWER ELECTRONICS PROJECTS 
trichynewproject@gmail.com
ABINESAN - 9003012154


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