Record Power Flow in a Two Area Power System in Simulink

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I am currently working on a two area power system and want to measure the interarea power oscillation in different grid event. I have comnstructed my two-area power system as follows:
Can anyone help me for the measurement of the power oscillation between the two areas? Thank you.

Answers (1)

Sayan
Sayan on 26 Sep 2023
Hi Jacky,
I understand from your query that you are trying to measure the 3-phase power transfer between the two area models in your system.
In this case, you can follow the below-mentioned steps to obtain the same.
  • Use the "Three-PhaseV-I Measurement" block (available at Simscape / Electrical / Specialized Power Systems / Sensors and Measurements) to measure the instantaneous three-phase voltage current flowing between the two areas.
  • Connect the output of 3-phase measured voltage and current to the "Power (3ph, Instantaneous)" block (available at Simscape / Electrical / Specialized Power Systems / Sensors and Measurements) to measure the instantaneous 3-phase active and reactive power flow between the two areas.
  • One point to consider is that the "Power (3ph, Instantaneous)" block measures power accurately for a 3-phase balanced harmonic-free system. So if there are harmonics in your system, you need to filter them first.
You can further find more information on the "Three-PhaseV-I Measurement" and "Power (3ph, Instantaneous)" blocks in the following MathWorks Documentation links:
Hope this answers your query.

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