I found that the 'real pole' block is frequently used to be fed with measured voltage or current in a lot of sample models especially HVDC. I can't wrap my head around the use of it. At first I thought it had filtering effect, but when I measured the input and output, no difference was observed. Can anyone enlightened me on how important is the block? Below is the screenshot of the VSCTrans model. .
I got the same question. I found this block frequently used in the VSC monopole benchmark model, when measuring power by multiplying Vdc and Idc. So before plotting the signal it passes through the real pole function with gain equal to 1 and time constant 0.001s. Could somebody explain why this is necessary?