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voltage rise check due to renewable power (Pgen) increase in psse

Hello.

I am trying to verify power network's voltage rise from increasing renewable power such as wind, solar, etc in PSS/E. I am checking only sav file in PSS/E, since I don't need dynamic simulation with (reec+repc+regc).

It is apparent that voltage will rise when RE generation is increased. (Now this is one of the biggest problem in power network in my area.) But although I increase RE generation (Pgen) in PSS/E, it shows that voltage is decreased after power flow analysis.

The problem is that; when I increase Pgen of RE generator, it absorbs more reactive power from power network after P/F analysis. If I increase Pgen from RE Generator, it absorbs more and voltage is decreased more. This is not actual situation, and I doubt which part I should check.

It will be helpful if you give me a advice.

Thank you in advance.

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