According to The Sleep Foundation, I might be dealing with sleep inertia. The phenomenon, which can make you disoriented, drowsy and uncoordinated, has no known cause. But experts think it could ...

Frequency Control,Alternating Current,DC Voltage,Grid Fault,Induction Motor,Industrial Plants,Inertia Constant,Point Of Common Coupling,Power Quality,Sleep Start,Voltage Control,Voltage Sag,Current ...