Question

2. (15%) Derive the mathematical model of a blushless DC motor with three-phase of stator and two-pole permanent magnet of rotor. Transform it to conventional DC-motor model for parametric identification. 3. (10%) About the motor in Prob. #2, plot the Y-wiring of its stators. 4. (15%) Following Prob. #3, design the six-step square wave driving. 5. (10%) Following Prob. #4, design the three-phase AC-motor driving. 6. (10%) How to transform a full-bridge inverter into a four-phase buck chopper? 7. (10%) How to extend the four-phase chopper in Prob. #6 as a three-phase driver of the motor in Prob. #2.

          2. (15%) Derive the mathematical model of a blushless DC motor with three-phase of stator and
two-pole permanent magnet of rotor. Transform it to conventional DC-motor model for
parametric identification.
3. (10%) About the motor in Prob. #2, plot the Y-wiring of its stators.
4. (15%) Following Prob. #3, design the six-step square wave driving.
5. (10%) Following Prob. #4, design the three-phase AC-motor driving.
6. (10%) How to transform a full-bridge inverter into a four-phase buck chopper?
7. (10%) How to extend the four-phase chopper in Prob. #6 as a three-phase driver of the motor in
Prob. #2.

2. (15%) Derive the mathematical model of a blushless DC motor with three-phase of stator and
two-pole permanent magnet of rotor. Transform it to conventional DC-motor model for
parametric identification.
3. (10%) About the motor in Prob. #2, plot the Y-wiring of its stators.
4. (15%) Following Prob. #3, design the six-step square wave driving.
5. (10%) Following Prob. #4, design the three-phase AC-motor driving.
6. (10%) How to transform a full-bridge inverter into a four-phase buck chopper?
7. (10%) How to extend the four-phase chopper in Prob. #6 as a three-phase driver of the motor in
Prob. #2.

Added by Melissa L.

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