Um, an unfortunate crisscross with acronyms... by PV generators do you mean power-voltage as in classical power flow problem parlance or do you rather mean "photo voltaic"?

Richard Ngonga wrote:

 Hi there,

I am working on a thesis on reactive power control on a distributed network with transformers and PV generators. Can I model the PVs as generators on a PV bus or should I model them as capacitors on a PQ bus? I'm also having problems modelling transformers from a 20KV network to a 0.4KV network; when I use the transformer ration 50 I get very large power flows and losses. The transformer data is: Sn 400KVA, Usc=10%, Uprm/Usec=20/0.4(KV) and Usec set=1.05.

Regards


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