Based on your description, so your requirement is to achieve a new table once the refreshed, right? If it is, I'm afraid currently power bi doesn't have this feature. The original table will be refreshed every time you click the "Refresh" button. And it's not suggested because the dataset size will be much larger if we save the whole table during each refresh.
Community Support Team _ Jimmy Tao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.