Question: Prove that the circulating current in an MMC - HVDC is a double - frequency component. You are provided with a Simulink file containing a

Prove that the circulating current in an MMC-HVDC is a double-frequency component.
You are provided with a Simulink file containing a MMC based HVDC system. You
need to change the value of the arm inductor from 0.1 pu to 1 pu gradually. You need to observe the impact of this change on the circulating current of the MMC. You need to plot this curve and explain the curve theoretically.
[Matlab command to open the exmaple model is: openExample('simscapeelectricalsps/HVDCMMCInterconnectionExample')]

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