Five-Phase Modular External Rotor PM Machines with Different Rotor Poles: A Comparative Simulation Study

Figure 11

Machine performance with one phase open, (a) developed torque and (b) core loss for the three machines. Phase voltages and developed torque for (c) 20 slot/14 pole machine, (d) 20 slot/18 pole machine, and (e) 20 slot/22 pole machine (f). Reference currents with one phase open.