When you are controlling the 3 phase motors using a micro controller using FOC or any other methodology, i assume that ,we can only control the phase-phase voltages of the motor and not the phase - neutral voltage, this is because the neutral is never accessible from the motor. Is my understanding correct?

So, i can control phases R,Y,B by generating the SVPWM / Sine wave using R,Y,B terminals that is phase-phase, but i cannot control the Phase - Neutral voltage, since the neutral is not exposed . Am i correct?

So, i can control phases R,Y,B by generating the SVPWM / Sine wave using R,Y,B terminals that is phase-phase, but i cannot control the Phase - Neutral voltage, since the neutral is not exposed . Am i correct?