Measure the motor quantities (phase voltages/currents, speed and load
torque)
• Calculate required power to produce load torque
• Compare input power to previous input power
• Transform them to the 2-phase system (α,β) using a Clarke transformation
• Calculate the rotor flux space vector magnitude and position angle
• Transform stator currents to the d-q coordinate system using a Park
transformation
• The change rate of the stator current flux- (isd) producing component is
estimated from the fuzzy system
• The output stator volt is calculated by the decoupling block
• An inverse Park transformation transforms the stator volt back from the dq coordinate syst.
to the 2-phase system fixed with the stator
•Using the space vector modulation,the output 3-phase voltage is generated.