load shedding

One don't require artificial intelligence for load shedding, natural stupidity will do fine.

The load shedding in SA was achieved by lack of planing and maintenance over some 10 years. Nothing to be proud about and definitely not something you want to get students introduced to.

Load shedding in any form is detrimental to the economy and every one. You need to have a serious look at the effects on industry, mining, manufacturing etc.

The use an any area is very diverse because it developed over time driven by all types of factors, For example my one neighbour is a dentist and at the back is a day care, all us has different schedules. The only acceptable load shedding is zero shedding.

You should rather do a thesis on balancing supply and demand variations. In SA for example (we use coal because SA is rather arid with not great prospects for hydro) we have developed the TUVA scheme. When there is surplus power available we pump water from a lower to a higher reservoir. During peak demand periods we reverse the process to generate power.

dear sir:

thank you for your reply

1) i think that you don't understand the concept of load shedding technique actually.

2) load shedding didn't appear due to lack of maintenance or planning , which means that you don't know the total reliabilty engineering or root case analysis

3) load sheeding consider as acorrective action to ensure that the voltage and the frequency of the system will be within the acceptable values

4) there are alot of researches about applications of artificial intelligence technique in load sheeding such as (ANN , Fusy reasoning , Gentic algorith , ......) are exist at IEEE , IEE , INTERNATIONAL JOURNAL , ETC....

best regards , if you want to know more about LS tell me

Please mail me some info.

I was talking as a victim of load shedding.

My experience of load shedding is that it is a scheduled and / or random interruption of power supply to consumers which turned out to be costly.

Loosing 2 hours in normal time means that you are paying workers for extended tea breaks and then must pay overtime to get the work done.

Random shedding is even more costly because material may be scraped and it sometimes require a lot of work to rectify the damage.

The total electricity use for the same production is actually bigger.

Replacing grid power also imply capital outlay and the unit price is also higher.

I think that most electrical generating and distribution company's would have written reports, and possibly recommendations? I have read a few, therefore as a suggestion, if you where to approach these company's for there reports etc, then you may be able to build up a picture as to what may the best way to go. I don't know if this information is already collectively available.

Regards JD.

If you're set on using AI, you might want to take a look at Expert Systems. This is where you find an expert in the field and you have him interface with a programmer. First to build a rules-base - basically, "if this happens what would I do next." Once the rules-base is filled out, the programmer can go ahead and convert the rules-base into a program.

One of the interesting aspects of an Expert System is that it can learn. If things don't work out as planned, they are designed to expand their rules-base. A simple example of this is teaching a computer to play 20 Questions.

Please take a look on one of our project at KSA on year 1996 where their is a severe problem on power plant generation:

1. the government had implemente total load sheding to all government institution to decrease the load from 100 to 60% duting peak hours (12noon to 4pm)

2. We recommended to the electic company the following:

a. install auto matic potentiomer to chillers (all brands- this will control the load as per govenment requirment)

b. install remote controller to all bulidings and dirtectly connected to SCECO main HQ.

Above recommendation was applied to all region by the government until such time that they have installed new power plant.

"i want to make my master in this subject"

Master or Masters as in University?

If the latter, you should look over all possible designs, correlating the pro's and con's of each design to a suitable task and costing.

Possibly a friendly google enquiry could also be of some

-> http://www.google.com.au/search?hl=en&q=softwares+can+i+use+to+simulate+the+load+sheeding&btnG=Google+Search&meta=

My experience with load shedding is primarily on offshore platforms where we have on board generation, ie multiple gen-sets in parallel. The concept of load shedding is if you have five gensets running in parallel at 100% and one machine trips, you must shed load to prevent blackout of entire facility.. The concept will look at all loads, and you will begin to shed the non-critical first, or large loads that will not totally shutdown production.

We use PLC program for this that will have power transducers feeding in for analog data, and breaker status`s for digital. Some of the things you must meter are available spinning reserve on generators, total load on each bus, bus voltage, gen volatge and so on.. You can be as fancy as you like, but typically the simpler the better. I have seen both sides of design concepts, and the more automation you add to a system, the more components you will have that can fail..

Expert systems... I'm just sayin'.