I keep seeing that the space vector generation (as a part of a FOC) is generated around DC Link / 2. What effects would be expected if the (in this case isolated) star point were permanently shifted?
When I search for it, I keep coming across the keyword "common mode voltage", but I still cannot conclusively understand the effects when dealing with an isolated star point.
I am aware of various literature that describes the generation of space vectors, but unfortunately I do not find any information about a permanent shift in the generation from the center (center means 50% duty cycle).
In the typical case, all FETs switch at 50% when the motor is at a standstill and thus brings the star point of the 3-phase system to DC Link / 2.
My question therefore has more of a theoretical background as to whether negative effects would be expected in the event of a permanent displacement from the center (DC Link / 2). In this case, should capacitive equalizing currents be expected (assuming an isolated star Point )? Something like that?
I am very grateful for brief feedback from an expert.
