I do believe that it will work. the thing is how do I tune the 2 inverters to use the same throttle? I could probably use a small Arduino board to control the speed since the outer stator will limit the speed because of higher flux linkage. As speed reaches maximum, I can turn off the the inverter connected to the outer stator. Is that an acceptable solution?
Will I need a signal amplifier between the 3 hall sensors and both inverters?
One last question, as mentioned, the motor is a PMSM or PMAC and not a BLDC. Is the KLS-M/N series controller a wise choice? I would believe yes because it does generate a sine wave.