Can two gas turbines working in droop mode be connected to the same grid?

So my quesstion is simple.Let's suppose to have two gas turbines working in droop mode.At this moment they are operating at the same frequency(same rpm) and they are connected to the same grid.What if I decide to give a command to one of the gas turbines to change it's active load and therefore it's power,then in this case that gas turbine is going to have a different speed than the other gas turbine and therefore a different frequency ,but they are connected to the same grid!Can this be done?
 
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