A 3-phase, 4-pole permanent-magnet brushless DC motor is star-connected and supplied by a 6-step inverter as shown below

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A 3 Phase 4 Pole Permanent Magnet Brushless Dc Motor Is Star Connected And Supplied By A 6 Step Inverter As Shown Below 1 (97.89 KiB) Viewed 34 times

A 3-phase, 4-pole permanent-magnet brushless DC motor is star-connected and supplied by a 6-step inverter as shown below. The line to neutral emf E₂ is measured at 36 V rms at 1000 rpm at no load. The stator winding resistance and inductance per phase are respectively 10 2 and 1 mH. Which of the following is INCORRECT? P AC motor $₂0 n S₁ a b 8 اله وS 8 $₂ouk The DC supply voltage Va is estimated at 46 V from the Fourier analysis of the 6- step phase voltages O The phase current in the rotor-locked case lalk (at wr=0) is estimated at 3.6 A. O The torque constant kt (in T=k+la) is estimated at 1.03 Nm/A. O The DC supply voltage Va is estimated at 80 V from the Fourier analysis of the line voltage. O The emf constant kË (in Ea= kewr) is estimated at 0.344 V/rad/s