I think I understand your confusion. The diagram shown above is misleading by stating Va, Vb, and Vc is coming out of the park and clarke transform! The decimal value that comes out of the park and clarke transform is not a voltage! It is a control signal from 0 to 1 that controls the duty cycle of the inverter, where 1 would mean applying full voltage to the motor and 0 means applying no voltage. These control signals will then be used to switch on and off transistors at high speed, synthesizing the sinusoidal voltages that feed into the motor.

The park and clarke transform is a technique used to linearize the dynamics of the motor, its just matrix math.

I think I understand your confusion. The diagram shown above is misleading by stating Va, Vb, and Vc is coming out of the park and clarke transform! The decimal value that comes out of the park and clarke transform is not a voltage! It is a control signal from 0 to 1 that controls the duty cycle of the inverter, where 1 would mean applying full voltage to the motor and 0 means applying no voltage. These control signals will then be used to switch on and off transistors at high speed, synthesizing the sinusoidal voltages that feed into the motor.

The park and clarke transform is a technique used to linearize the dynamics of the motor, its just matrix math, and not power electronics.