How use Three-Phase Dynamic Load block to generate Power data?

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Hi there!
I am trying to model a three phase power system, with measured data of active and reactive power using Simscape, as shown below. Load Model.JPG
I am trying to use the external control for the module, since I already have the data measured and I just need to get that data into the load. The Active and Reactive power are vectors with the value I want as the load, as shown below.
At the end, it is given mee two errors, due two the size of the matrix, but I cannot figure out what I am doing wrong.
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Salma Al abri
Salma Al abri on 29 Jun 2020
Hello Enmanuel, Did you mange to figure out how to solve this problem! Because I have been fasing similar issue and havent got to the soluion yet.

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Answers (2)

Vasco Lenzi
Vasco Lenzi on 29 Jun 2020
Hi Enmanuel
you need to feed P&Q as a timeseries, and not as a vector of elements. In total you will feed a vecotr of size 2, varying over time to change P&Q at different times:
So you need to use a block such as the repeating sequence in which you can define values at a certain time:

Jorge Luis Arrúa Gines
Jorge Luis Arrúa Gines on 26 Jul 2020
Hola, pueden ayudarme a montar lo descripto por Vasco? gracias
  1 Comment
Vasco Lenzi
Vasco Lenzi on 4 Aug 2020
hi Jorge, where do you need more information?
If you wnat to simulate a linear increase in P and Q you can simply use the ramp source block in simulink:
there are many source block available to customize your input into the model. Choose one, create a vector together with another one for Q and feed into the PQ input port. It doesn't need to be a ramp, it can be a mat file, a MATLAB time series (from Workspace) or even an hand-drawn signal in the signal editor block!

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