"Edson, how did you turn on the suspended pc by alexa?"
@Magno-Diego PCs that have no power (e.g. hibernating) can't be woken by internal commands ... because they're off. If you have multiple PCs, you could look into Wake On Lan.
And, just so you know, once a PC is locked, there is -no- way to unlock it with commands. That's a security feature of Windows; always has been.