Dynamic Voltage Regulator

Projects General Guidance
1

Hi,

I am trying to build a dynamic voltage regulator (dvr) using arduino, the working principle is below.

using igbt and buck boost transformer, we need to add or subtract voltage thereby maintaining a constant output voltage. the input voltage range is from 180 to 270 volts AC 50 Hz and the output has to be constant at 230 Volts AC 50 Hz.

Can anybody please help me with this project.

i have attached an illustration of the dvr diagram for you reference.

thanks & regards

sri.

DVR-Schematic.JPG

2

My only guess is a two-stage converter, as used in some UPS. The first stage loads a battery from the input voltage, the second stage generates the AC output from it.

Which current do you want to handle? Did you already look at such powerful components?

3

Please supply a link to your buck/boost transformer. All the ones I have dealt with are either one or the other and must be rewired to change from one to the other. Furthermore, the amount of buck/boost is always a fixed value based on the number of turns of wire for that winding on the transformer.

Paul

4

HI,
OPs diagram;
ef077c51f1a08630d9dce910143882cff0a03b27.jpg

Thanks.. Tom.. :slight_smile:

5

shree79blr:
the output has to be constant at 230 Volts AC 50 Hz.

That sounds like the opposite of dynamic.

"Buck" and "boost" usually refer to DC power supplies and aren't used on AC supplies. Unless your requirements are very unusual, a commercial UPS will do all of that for you.

6

I have several that have been used over the years to add, say 10 volts, to the 212 volts AC supply for a piece of equipment. Can be wired to "boost" or reverse phase to "buck" a too high supply AC down to what the equipment was designed for. Very common industrial transformer.

Paul