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Anonymous Poster

DG Units

11/25/2008 2:46 AM

With the help of meters & all those we can calculates Units per ltr rate for DGs , but what is the prevailing standards & so as rates .

Is there any specific formula to get the information or only hit & trail as suggested by some replies.

I hope there might be some OEM guidelines & standards subject to their product.
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LG_Dave
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#1

Re: DG Units

11/25/2008 11:14 PM

What are the units?

What is a ltr?

What is a DG?

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PetroPower
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#4
In reply to #1

Re: DG Units

11/27/2008 5:58 AM

Some guesses based on international cultural experience:

Units might be kWh (killowatts) or some other unit of measure one can electrically monitor easily versus how much fuel is used.

ltr = liter

DG = Diesel Generator (Gen Set)

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U V
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#2

Re: DG Units

11/26/2008 1:34 AM

the only thing I could find was distributed generation units.

Abstract
The increasing penetration of distributed generation (DG) in the electricity grid will result in a reduction of the number of connected conventional power plants, which are nowadays responsible for control of the electricity network frequency. Currently DG units do not contribute to frequency control. With increasing penetration of DG it will become necessary, however, that they also contribute to frequency control. A significant part of the DG units are connected to the grid by a power electronic converter. It is possible to implement additional control in this converter to let the DG unit contribute to frequency control. In this paper it is investigated how these controllers can be implemented and it is analysed how large the contribution of several types of DG units can be. Copyright © 2006 John Wiley & Sons, Ltd.

from http://www3.interscience.wiley.com/journal/112782174/abstract?CRETRY=1&SRETRY=0

Brad

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LG_Dave
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#3
In reply to #2

Re: DG Units

11/26/2008 2:44 AM

UV,

That clarifies the problem. I think there is a 60Hz signal somewhere on the shortwave bands, used to synchronize power generators. With a continous sync signal, there is not going to be some cumulative error to worry about. The tolerance issue then would be mostly how close to an actual sine wave you are producing. I think they used to do that with analog components - the best was an incandescent lamp in the feedback of an op amp. The resistance of the filament followed the sine function quite closely. The newer systems use a look up table to generate the points on the sine curve from a DAC.

LG_DAVE

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