@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.

Good afternoon everyone, I'm new here
my pc does not turn on via wake on lan because the bios has no options
what I managed to do was leave it on sleep so the voice command works and it calls through alexa
soon to suspend I didn't find an option, just to hibernate
but hibernate doesn't work voice command
would you be able to suspend the pc by the command? thanks

You could try using this command:

nircmd standby

If you haven't installed nircmd yet, here's a video.