![Problem 1 (25 points) The parameters of a 6-pole, 2-phase, permanent-magnet ac machine are: 10mH = 2Ω,4,-1 mH, Lm,- Calculate the angular rotor velocity wrm and the electrical angular velocity wr. (4 points) [Update: use part (i) for the operating condition.] (i) s given that the open-circuit phase voltage is sinusoidal with a peak-to-peak value of 40 V, when the device is driven at 1200 r/min. Calculate λ,n, (8 points) Alternatively-when the stator windings of the permanent-magnet ac machine are open circuited, if the rotor is driven clockwise and the measured vas-20 sin 120t, determine bs. (5 points) (i (iv) Based on (i), calculate ias if the stator is short-circuited. (8 points)](http://img.homeworklib.com/questions/f11556e0-015e-11ec-b27c-efa919b7b7d7.png?x-oss-process=image/resize,w_560)
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Problem 1 (25 points) The parameters of a 6-pole, 2-phase, permanent-magnet ac machine are: 10mH =...
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters rs 3.42, ,-12...
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters rs 3.42, ,-12.1mH, and λm-0.0826 V . s/rad. The stator windings are short circuited and the rotor is driven at wrm 1 Tt. Calculate igs, ids and ias. 3 Answer: ligs-3.271A, ids-2.438A]
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters rs 3.42, ,-12.1mH, and λm-0.0826 V . s/rad. The stator windings are short circuited and the rotor is driven at wrm 1 Tt. Calculate igs, ids...
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters rs3.42, Lss 1...
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters rs3.42, Lss 12.1 mH, and 4m = 0.0826 V . s/rad. The stator windings are short circuited and the rotor is driven at arm-as. 100 T. Calculate las, lds and i Answer 3271A, (as-2438A)
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters rs3.42, Lss 12.1 mH, and 4m = 0.0826 V . s/rad. The stator windings are short circuited and the rotor is driven at arm-as....
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters r: 3.40 Lss-1...
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters r: 3.40 Lss-121mH, and Am-0.0826 V . the rotor is driven at arm- s/rad, The stator windings are short circuited and 100 T. Calculate igs, Ids and las.
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters r: 3.40 Lss-121mH, and Am-0.0826 V . the rotor is driven at arm- s/rad, The stator windings are short circuited and 100 T. Calculate igs, Ids and las.
3. Measuring the rotor permanent-magnet flux Am of a permanent-magnet machine. The parameters of ...
3. Measuring the rotor permanent-magnet flux Am of a permanent-magnet machine. The parameters of a four-pole two-phase permanent-magnet ac machine are rs 3.42, Lis1.1mH and Lms = 11mH. When the device is driven at 1000 r/min, the open-circuit phase voltage vas is sinusoidal with a peak value of 17.3 V. Determine the rotor permanent-magnet flux Am (Hint: use the stator voltage equation: vas-gias + ddas and flux linkage equation: λα,-Lsslas + λmsína, where as 0) Answer: 4m-0.0826 V·s/rad
3. Measuring...
3. Measuring the rotor permanent-magnet flux Am of a permanent-magnet machine. The parameters of ...
3. Measuring the rotor permanent-magnet flux Am of a permanent-magnet machine. The parameters of a four-pole two-phase permanent-magnet ac machine are ς-34Q, Lis-1.1 mH and Lms - 11mH. When the device is driven at 1000 r/min, the open-circuit phase voltage vas is sinusoidal with a peak value of 17.3 V. Determine the rotor permanent-magnet flux Am. (Hint: use the stator voltage equation : vas-Has + dats and flux linkage equation. Aas-Lsslas + λmsina, where as0) Answer: Am - 0.0826V-s/rad
3....
1. A four-pole three-phase permanent-magnet ac motor ha5% 4Q, Lss 0.01 H. The motor is operating ...
1. A four-pole three-phase permanent-magnet ac motor ha5% 4Q, Lss 0.01 H. The motor is operating with aヶ= 146 rad/s and the initial rotor angle θ,(0) = 0. The applied phase-A voltage and current are vas 10cos(wrt), and las cos(wt - 20°). Calculate the rotor permanent-magnet flux Ă,n and the motor torque Te, and input power Po (Hint: Po-: 3 asrmslasrn scos(8,-0,). Answer:m-0.0393 V s/rad, Te0.111N m, Pe 14.1W].
1. A four-pole three-phase permanent-magnet ac motor ha5% 4Q, Lss 0.01...
Consider a three-phase, 2-pole induction machine. Neglect the stator winding resistance and the leakage inductance. The...
Consider a three-phase, 2-pole induction machine. Neglect the stator winding resistance and the leakage inductance. The rated voltage is 217V (line-line, rms) at 60 Hz. Lm65mH, and the peak flux density in the air gap is 0.89T. Consider that the phase-a voltage reaches its positive peak at wt-0. Assuming that the rotor circuit is somehow open circuited, calculate the position(angle) of the magnetizing current space vector ims at wt-4g°.
Consider a 2-pole, 50 Hz, cylindrical rotor ac machine. The air-gap radius is 0.1 m, the...
Consider a 2-pole, 50 Hz, cylindrical rotor ac machine. The air-gap radius is 0.1 m, the air-gap distance is 0.002 m and the air-gap axial length is 0.3 m. The stator winding is excited by a 3-phase, 50 Hz, 5 A (peak), balanced ac current system without rotor excitation. Calculate the air-gap fundamental flux per-pole and the generated fundamental voltage between the terminals of the rotor winding when the rotor is stationary.
In a 2-pole, three-phase ac machine, 4-1.5 mm, 1=24 cm, r=6cm, and N, -100. Under a balanced, sin...
In a 2-pole, three-phase ac machine, 4-1.5 mm, 1=24 cm, r=6cm, and N, -100. Under a balanced, sinusoidal, 60-Hz steady state, the peak of the magnetizing current in each phase is 10 A. Assume that at t = 0, the current in phase-a is at its positive peak. Calculate the expressions for the induced back- emfs in the three-stator phases.
In a 2-pole, three-phase ac machine, 4-1.5 mm, 1=24 cm, r=6cm, and N, -100. Under a balanced, sinusoidal, 60-Hz steady...
For a 6-pole, 2-phase squirrel-cage induction machine, the following parameters are given: 10, .is . Žml,...
For a 6-pole, 2-phase squirrel-cage induction machine, the following parameters are given: 10, .is . Žml, .mas : 1 BrnII,? 0.5?, l?r 1mil The induction machine works as a motor being supplied by a 60-Hz source. The rotor speed is ar360 rads In his ip of operaion, s1A1. A; 25.1/1/1.9° A, calculate the following (i) Electromagnetic torque (6') (ii) Rotor copper loss due to the rotor winding resistance (5') (ii) Mechanical power delivered to the load. (6') Determine Vas, las,...
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters rs 3.42, ,-12.1mH, and λm-0.0826 V . s/rad. The stator windings are short circuited and the rotor is driven at wrm 1 Tt. Calculate igs, ids and ias. 3 Answer: ligs-3.271A, ids-2.438A]
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters rs 3.42, ,-12.1mH, and λm-0.0826 V . s/rad. The stator windings are short circuited and the rotor is driven at wrm 1 Tt. Calculate igs, ids...
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters rs3.42, Lss 12.1 mH, and 4m = 0.0826 V . s/rad. The stator windings are short circuited and the rotor is driven at arm-as. 100 T. Calculate las, lds and i Answer 3271A, (as-2438A)
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters rs3.42, Lss 12.1 mH, and 4m = 0.0826 V . s/rad. The stator windings are short circuited and the rotor is driven at arm-as....
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters r: 3.40 Lss-121mH, and Am-0.0826 V . the rotor is driven at arm- s/rad, The stator windings are short circuited and 100 T. Calculate igs, Ids and las.
2. Consider the four-pole two-phase permanent-magnet ac machine with the parameters r: 3.40 Lss-121mH, and Am-0.0826 V . the rotor is driven at arm- s/rad, The stator windings are short circuited and 100 T. Calculate igs, Ids and las.
3. Measuring the rotor permanent-magnet flux Am of a permanent-magnet machine. The parameters of a four-pole two-phase permanent-magnet ac machine are rs 3.42, Lis1.1mH and Lms = 11mH. When the device is driven at 1000 r/min, the open-circuit phase voltage vas is sinusoidal with a peak value of 17.3 V. Determine the rotor permanent-magnet flux Am (Hint: use the stator voltage equation: vas-gias + ddas and flux linkage equation: λα,-Lsslas + λmsína, where as 0) Answer: 4m-0.0826 V·s/rad
3. Measuring...
3. Measuring the rotor permanent-magnet flux Am of a permanent-magnet machine. The parameters of a four-pole two-phase permanent-magnet ac machine are ς-34Q, Lis-1.1 mH and Lms - 11mH. When the device is driven at 1000 r/min, the open-circuit phase voltage vas is sinusoidal with a peak value of 17.3 V. Determine the rotor permanent-magnet flux Am. (Hint: use the stator voltage equation : vas-Has + dats and flux linkage equation. Aas-Lsslas + λmsina, where as0) Answer: Am - 0.0826V-s/rad
3....
1. A four-pole three-phase permanent-magnet ac motor ha5% 4Q, Lss 0.01 H. The motor is operating with aヶ= 146 rad/s and the initial rotor angle θ,(0) = 0. The applied phase-A voltage and current are vas 10cos(wrt), and las cos(wt - 20°). Calculate the rotor permanent-magnet flux Ă,n and the motor torque Te, and input power Po (Hint: Po-: 3 asrmslasrn scos(8,-0,). Answer:m-0.0393 V s/rad, Te0.111N m, Pe 14.1W].
1. A four-pole three-phase permanent-magnet ac motor ha5% 4Q, Lss 0.01...
Consider a three-phase, 2-pole induction machine. Neglect the stator winding resistance and the leakage inductance. The rated voltage is 217V (line-line, rms) at 60 Hz. Lm65mH, and the peak flux density in the air gap is 0.89T. Consider that the phase-a voltage reaches its positive peak at wt-0. Assuming that the rotor circuit is somehow open circuited, calculate the position(angle) of the magnetizing current space vector ims at wt-4g°.
In a 2-pole, three-phase ac machine, 4-1.5 mm, 1=24 cm, r=6cm, and N, -100. Under a balanced, sinusoidal, 60-Hz steady state, the peak of the magnetizing current in each phase is 10 A. Assume that at t = 0, the current in phase-a is at its positive peak. Calculate the expressions for the induced back- emfs in the three-stator phases.
In a 2-pole, three-phase ac machine, 4-1.5 mm, 1=24 cm, r=6cm, and N, -100. Under a balanced, sinusoidal, 60-Hz steady...
For a 6-pole, 2-phase squirrel-cage induction machine, the following parameters are given: 10, .is . Žml, .mas : 1 BrnII,? 0.5?, l?r 1mil The induction machine works as a motor being supplied by a 60-Hz source. The rotor speed is ar360 rads In his ip of operaion, s1A1. A; 25.1/1/1.9° A, calculate the following (i) Electromagnetic torque (6') (ii) Rotor copper loss due to the rotor winding resistance (5') (ii) Mechanical power delivered to the load. (6') Determine Vas, las,...
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