How to simulate harmonics generated by the electric power system load in simulink?

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BIKRAM DAS on 9 Nov 2012
Answered: Joel Van Sickel on 18 Aug 2021
In simulink i want to simulate a simple power system network with just a stand alone synchronous generator ,a transmission line and a nonlinear load so that harmonics can be generated by the electrical load.I can simulate synchronous generator and transmission line with linear loads BUT DON'T KNOW HOW TO CREATE POWER HARMONICS IN SIMULINK
John BG
John BG on 3 Apr 2016
it seems that by the time difference between the question posted and your remark, if Bikram had wanted to hang any finding here it would have been done time ago, which means that either didn't find anything or found something worth not being shared in a public forum, don't you agree Gautam?

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Answers (1)

Joel Van Sickel
Joel Van Sickel on 18 Aug 2021
unfortunatley, this answer is too late for the asker, but it is a very common question so here is a response:
The easiest way to inject harmonics is to use a controlled current source (you can also use a controlled voltage source). Then you can inject any additional signal on top of the existing model. Otherwise you need to build a realistic source or load with harmonics which is typically more work, but is useful if you don't know what harmonics the load/source would inject. For these cases you need to include switching effects to get the appropriate harmonics.
This is a useful block for adding random noise:

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