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HVDC MMC Model Soft Start

Submitted by AGUNG_OWT on
Forums
General Discussion

Hi All,

 

I am a beginner in HVDC simulation.

I want to simulate soft start-up of an AC passive network (long subsea cable). Where in the HVDC MMC model can we adjust/modify to have voltage ramp-up.?

 

Thanks in advance

 

Regards

hani.saad

Dear AGUNG_OWT,

You should go inside the MMC station model and modify the reference "Vref" used for VF-control type. 

For MMC model example provided in EMPT 2.5, the path for this bloc is: VSC_1/Upper_Level_Ctrl2/VF_control

You should replace the constant bloc named "Vref" with a signal generator. Then configure this later with the appropriate ramp desired.

Note that Vref value is in pu.

Best regards,

Wed, 10/30/2013 - 12:00 Permalink