.BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Loads.Examples.Loads

Information

This example model shows how three-phase unbalanced loads can be used.

This model contains two set of loads (one for each type: resistive, inductive and capacitive) that consume power just on the first phase. The example shows how it's possible to model this situation in two different ways. It's possible to not connect the loads on the phases setting the parameters plugLoad*=false. The alternative is to impose the load on a specific phase equal to zero.

The power measured by the sensors on each phase show that the results are equal.

Note:

Whenever possible it is preferred to disable the load on a specific phase using the parameter plugLoad* because the equations relative to the load are conditionally removed, reducing the size of the system of equations.

Revisions

• September 24, 2015, by Michael Wetter:
  Removed assignment of P_nominal to avoid the warning "The following parameters with fixed = false also have a binding" in Dymola 2016.
• September 24, 2014, by Marco Bonvini:
  Created model from previus version and added documentation.