How do I model the harmonic impedance of the network?
Category:
Power Quality
Summary
Is it possible to consider the frequency dependency of the short-circuit impedance of the network for the harmonic load flow and frequency sweep analysis?
Answer
For being able to consider frequency dependent network impedances you may use the Voltage Source element (ElmVac) or the External Grid element (ElmXnet).
On the Harmonics-page, frequency characteristics for R and L can be defined.
For more information about the Voltage Source or the External Grid, refer to the corresponding technical reference of the element.
Find attached an example (Frequency DependentGrid.pfd) showing a voltage source and an external grid with frequency dependent network impedance.