.Buildings.Electrical.Examples.RenewableSources

Information

This model shows the impact of renewables on the electric grid. The sensors show how the voltage per unit fluctuates depending on the building load and the power produced by the PV and the wind turbine. To the right of the model is the post-processing that computes the ratio of energy produced by the renewables over the energy consumed by the loads.

Ratio between energy produced by renewables and energy consumed

Th image below shows the ratio between the energy produced by renewable energy sources over the energy consumed by the loads over one year. The solid line indicates the Net-Zero Energy goal and the blue line indicates the actual ratio for the neighborhood represented by the model.

Voltage losses due to power generated by renewables

The scatter plots show the voltage levels at different locations in the network. In particular, the plots highlight how the voltage fluctuations are related to the power generated by the renewable sources, to the wind speed and the global horizontal irradiation. As expected, voltage increases with the power generated by the renewables, causing possible instabilities to the electrical grid.

Revisions

• September 16, 2021, by Michael Wetter:
  Removed assignment of parameter lat as this is now obtained from the weather data reader.
  This is for IBPSA, #1477.
• October 2, 2015, by Michael Wetter:
  Changed signals for post-processing to avoid using the conditionally enabled connector loa1.y outside of a connect statement.
• March 27, 2015, by Michael Wetter:
  Revised model.
• March 25, 2015, by Marco Bonvini:
  Added model.