Hi JBartos,
Not sure how to attach a sketch - drew one up quickly in Excel so anyone can see it but cannot work out how to attach it. I will try and email the sketch directly to you.
Your response is based around use of IGBT transistors as used in conventional VVVF type VSD's with three stage...
Hi all, new to this forum scene but here goes.
A new project will have some large synchronous motors with speed control by 4-quadrant 12 pulse thyristor drive (VSD). These motors also have a large number of poles on both the stator and rotor.
In the event of a mains power failure, the motor...
