Hi there!
As mentioned by there isn't a specific trigger to do this but rather actions. I'm going to show you 2 common methods:
More often than not, automated data refreshes start with some new source file that is saved to a SharePoint site. When that new file comes in you want to refresh your BI.
The first method is to consume your data using a dataflow and then after the trigger fires, you can refresh a dataflow. Think of this step as Power Query where you want to do some extra transformations before refreshing.
The latter is a simple refresh a dataset.
The other popular associated flow may use a recurrence, such as, every morning at 5 AM I want to refresh my data. Here you can use a scheduled flow.
Goes without saying, you don't use both actions I am showing above in this structure, just showing you the 2 actions ~ pick one.
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Tom
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