ATPDesigner supports an algorithm to calculate the steady state of an electrical power network. This algorithm so called Short Circuit Analysis or Load Flow Analysis or Load Flow Calculation calculates voltages, currents, power, etc., if renewable power plants e.g. wind power plants or a photovoltaic power plants must be considered. ATPDesigner uses controlled current sources to simulate the behavior of wind power plants or photovoltaic power systems, which are using DC/AC converter to infeed electrical energy in the power network. These current sources will be controlled by ATPDesigner itself.

ATPDesigner determines the phasors of the phase-to-ground voltages at the infeed node of the converter analyzing the .LST-file of the ATP and calculates the amount and the phase shift of the current source to achieve the active and reactive power defined by the user.

ATPDesigner determines the phasors of the phase-to-ground voltages at the infeed node of the converter analyzing the .LST-file of the ATP and calculates the amount and the phase shift of the current source to achieve the active and reactive power defined by the user.

ATPDesigner provides the user to adjust the phase shift between the phase currents of a 3-phase-current I_{ABC} and the corresponding phase-to-ground voltages V_{ABCG} or phase-to-phase voltages V_{AB}, V_{BC}, V_{CA} measured at the Network Connection Point (NCP) of the 3-phase source. Therefore the Phase Adjusting Algorithm adjusts the displacement factor at the NCP. ATPDesigner starts the Phase Adjusting Algorithm and modifies automatically the phase shift. The Phase Adjusting Algorithm will be stopped, if the specified accuracy dPhi or a maximum number of iteration steps or the apparent power S_{nom} has been achieved. Not only the phase shift as mentioned above will be adjusted but also the active power at the Network Connection Point (NCP).

The ATPDesigner algorithm regulates also the displacement factor as well the active power at the NCP by an iteration algorithm as well known from load flow calulation algorithms.

The ATPDesigner algorithm regulates also the displacement factor as well the active power at the NCP by an iteration algorithm as well known from load flow calulation algorithms.

ATPDesigner also provides the classical method for Load Flow Calculation so called Load Adjusting in ATPDesigner. This algorithm also supports the PQ-Nodes as well as the PV-Nodes and the Slack.

Combining the Load Adjusting and the Phase Adjusting algorithms ATPDesigner also supports an innovative method to calculate the Load Flow in Electrical Power Networks with Renewable Power Plants e.g. wind power plants.

Read more in the chapter of the ATPDesigner Help File

Read more in the chapter of the ATPDesigner Help File

- Phase Adjusting
- Load Adjusting
- ATPDesigner Load Flow Calculation