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Procedure to island a network

asked 2020-07-28 19:53:08 -0500

IndiraX gravatar image

Hi guys,

If I have a big system and I want to island just a sub-set of it, what could be the best practice to do it? I started to pick a new swing bus for the island and put out-of-service some branches and buses.

Thanks in advance.

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answered 2020-07-30 07:57:48 -0500

perolofl gravatar image

It is better to first take lines out of service until an island is formed. Check with activity TREE. After that, set a swing bus in the island.

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Hi! What I did was: 1) I set a another swing bus for the island network. Thus I got two swing buses (one for the new island). 2) I adjusted the dispatch in order to get those lines with zero power flow. 3) I put those lines out of service. Thanks for your advice!

IndiraX gravatar imageIndiraX ( 2020-08-02 23:21:32 -0500 )edit

There is no need for balancing the flow. Point 2 is not needed.

perolofl gravatar imageperolofl ( 2020-08-07 04:20:13 -0500 )edit

Hi! I tried to do it without adjusting zero flow on the lines but it didn't work, it blew up. I wonder if I did something wrong, but after that I could get my island. Thanks for your help.

IndiraX gravatar imageIndiraX ( 2020-08-08 06:00:59 -0500 )edit

I assume the mismatch became too high for Newton/Raphson to solve, so you did it right in your case.

perolofl gravatar imageperolofl ( 2020-08-11 00:55:50 -0500 )edit

Yes, it makes sense. Thanks for your advice.

IndiraX gravatar imageIndiraX ( 2020-08-11 00:58:53 -0500 )edit

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Asked: 2020-07-28 19:53:08 -0500

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Last updated: Jul 30