James O' Neill Hyper-V module for powershell be of use to you.
http://pshyperv.codeplex.com/http://pshyperv.codeplex.com/releases/view/38769 HyperV_Install.zip is the actual module, you will need to install
PShyperv-R2.pdf is the documentation with examples on how to use it.
See if that helps you.
Regards,
Shahid