Hello Machecosafaii Lovebestfriend,
Active Directory is an enterprise identity service and cannot be used to shut down or control an iPad, nor is it supported on Windows 11 Home. To manage your childs iPad usage or shut it down, you should use Apples built-in Screen Time feature directly on the iPad under Settings, Screen Time, or manage it remotely from your own Apple device using Family Sharing. If this guidance helps clarify the setup, please feel free to accept the answer.
Tracy Le.