misc

Per Unit System

The bases for AC system are

• (S_b^{ac}): three-phase power in MVA. By default, (S_b^{ac}=100 MVA) (in System.config.mva).
• (V_b^{ac}): phase-to-phase voltage in kV.
• (I_b^{ac}): current base (I_b^{ac} = \frac{S_b^{ac}} {\sqrt{3} V_b^{ac}})

The bases for DC system are

• (S_b^{dc}): power in MVA. It is assumed to be the same as (S_b^{ac}).
• (V_b^{dc}): voltage in kV.

Profiling Import

To speed up the command-line program, import profiling is used to breakdown the program loading time.

With tool profimp, andes can be profiled with profimp "import andes" --html > andes_import.htm. The report can be viewed in any web browser.