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Participant

Join Date: Mar 2014
Posts: 4

Help with Distribution Grid Data, Using Smart Meters

03/16/2014 7:24 AM

Hi everybody

I am a student of electrical engineering, and i am about start writing my Thesis.

The thesis is about monitoring the load on the distribution grid. there has been installed some smart meters at costumers side and along different nodes. the data is collected from those meters in a period of 2 month...So the question is, i have: Current, voltage(3 phase), power, date and so on...what i am asking is:

What calculations should i show ?

what is important to know about them, and why?

if the nominal voltage is 230 volt, what if in some time in a day shows at 220 and some at 232 V?

what kind of diagrams is important to show?

i am using Matlab program, can also use Maple

EXAMPLE:

SKABAFGANGDATOColumn1L1VL2VL3VL1IL2IL3IPL1PL2PL3
1122-01-2013 11:00227230230743939-16,6-8,9-8,8

and 1 costumer data:

costumer1-1-U-L1;15-2-2013 00:00:00; 231.06 V

costumer1-1-U-L1;15-2-2013 00:10:00; 231.37 V

costumer1-1-U-L1;15-2-2013 00:20:00; 231.34 V

Regards

A confused student

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#1

Re: Help with Distribution grid Data, using smart meters

03/16/2014 10:11 AM

One of the reasons you do a thesis is to learn things.

Do some research on smart meters and power grids.

This research will show you what is important and probably what to graoh and calculate.

We don't do homework here.

RESEARCH using a search engine duckduckgo is one, surely you can find it, or another one to use.

Type in smart meters and power grids.

Smart meter - Wikipedia, the free encyclopedia
Smart grid - Wikipedia, the free encyclopedia
SmartGrid.gov: Home
Do your own homework!

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Participant

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#2
In reply to #1

Re: Help with Distribution grid Data, using smart meters

03/16/2014 10:20 AM

I was not asking for homework completion, just pointing in the right direction :)

but if u do not know the answer its ok.

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#3
In reply to #2

Re: Help with Distribution grid Data, using smart meters

03/16/2014 10:26 AM

I gave you the answer! Research!

Read what you find on the web. Don't ask others to do the work for you.

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#4

Re: Help with Distribution grid Data, using smart meters

03/16/2014 2:33 PM

You can monitor a considerable amount of grid health from home, simply by tracking voltage and frequency.

The grid is powered by a multitude of spinning devices (generators, hydro turbines, wind turbines, etc.) The collective rotational inertia of all these devices constitutes a "spinning reserve." When a load is added to the grid, everything slows down briefly until various controls can restore their speeds. This shows up as a (usually) slight decrease in frequency and voltage.

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#5

Re: Help with Distribution grid Data, using smart meters

03/16/2014 3:07 PM

What exactly is the focus of your Thesis, what do you want to show as this will dictate what you use the data for.

Is it load profile, power quality, network reliability, etc?

After you have the data what do you plan on doing with it? Demonstrate cost savings, show benefits of installing power quality equipment or upgrading parts of the network, etc?

If you don't have a clear understanding of what you want to accomplish or what is expected of you you will struggle.

i am using Matlab program, can also use Maple

Based on the data you have given and my experience in real world grid data monitoring you could just as easily use Microsoft's Excel spreadsheet program too.

So, what do you want to accomplish with the Thesis?

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#6
In reply to #5

Re: Help with Distribution grid Data, using smart meters

03/16/2014 3:22 PM

thanks for the interest.

The project description is now attached to this.

I am not asking for solutions, but pointing in the right directions..so i dont waste all my time on things not usefull to me.

Thanks in advance

any help would be appreciated

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#7
In reply to #6

Re: Help with Distribution grid Data, using smart meters

03/16/2014 3:37 PM

Looks like a simple data analysis, and the overall expectations are clearly explained.

Get the data, find out about ALL the devices and sensors monitoring the data (needed for calculating accuracy, uncertainty, etc), research and use the data to find the measurement uncertainties, accuracy, etc.

You MUST get the information on the devices taking the measurements as many of these thesis questions require it.

All and all it's a pretty simple Thesis really, and isn't specific to Electrical Engineering (could have just as easily have been a statistics project).

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#8
In reply to #7

Re: Help with Distribution grid Data, using smart meters

03/16/2014 3:48 PM

you are right, it is simple. but the first and second question just makes me abit confused.

but i guess, i am stressed since its my first thesis...althought it asks about statistical method..which points to some alghorithmic calculation, which can get advanced.

but asked this here to see if someone had similar cases, and could ease it for me with pointing on how to.

but thanks :D

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