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I have a 13 bus system that I want to apply Newton Raphson to. 3 of the buses have generators. So that makes 1 slack bus and 2 PV buses. 6 of the buses are connected to loads (PQ). 5 buses have transformers. I have no clue how to handle transformers when doing load flow analysis. I converted them to impedances in pu. I'm not sure what the next step is.

The circuit and specs are shown below... 13 bus system

13 bus system specs

romanbird
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1 Answers1

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In power flows a transformer can be modelled exactly the same as a line if the per unit system is used. Therefore you can safely model them as impedances.

Check out the page 21 (bracnhes modelling chapter) of the Matpower manual: http://www.pserc.cornell.edu/matpower/manual.pdf

Santi Peñate-Vera
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