Rmxprt 直流电机问题

czq210006

       PERMANENT MAGNET DC MOTOR DESIGN

                      File: Setup1.res


     GENERAL DATA

Rated Output Power (kW):        0.3
Rated Voltage (V):        220
Number of Poles:        2
Given Rated Speed (rpm):        4150
Frictional Loss (W):        2.73512
Windage Loss (W):        0
Brush Displacement:        0
One-Pair Brush Voltage Drop (V):        2
Type of Load:        Constant Power
Operating Temperature (C):        75


     ROTOR DATA

Number of Rotor Slots:        16
Outer Diameter of Rotor (mm):          52.4
Inner Diameter of Rotor (mm):          10

Type of Rotor Slot:        2
Dimension of Rotor Slot
            hr0 (mm):          1.03
            hr1 (mm):          0.75
            hr2 (mm):          10.94
            br0 (mm):          2.5
            br1 (mm):          7.17
            br2 (mm):          2.81
Top Tooth Width (mm):          2.48434
Bottom Tooth Width (mm):          2.49199
Skew Width (Number of Slots):        0

Length of Rotor Core (mm):          45
Stacking Factor of Rotor Core:        1
Type of Steel:        D23_50
Slot Insulation Thickness (mm):          0
Layer Insulation Thickness (mm):          0
End Length Adjustment (mm):          0
Number of Virtual Slots per Slot:        2
Number of Conductors per Slot:        292
Type of Armature Winding:        Lap Winding
Multiplex Number:        1
Coil Pitch (Virtual Slots):        7
Number of Wires per Conductor:        1
Wire Diameter (mm):          0.381
Wire Wrap Thickness (mm):          0
Number of Parallel Branches:        2
Net Slot Area (mm^2):        57.6914
Limited Slot Fill Factor (%):        75
Slot Fill Factor (%):        73.472


     STATOR DATA

Minimum Air Gap (mm):          0.5
Outer Diameter (mm):          77.5
Length of Stator (mm):          107
Stacking Factor of Iron Core:        1
Type of Steel:        steel_1008
Polar Arc Offset (mm):          0
Polar Arc Radius (mm):          26.7
Physical Pole Embrace:        0.726
Computed Pole Embrace:        0.725807
Max. Thickness of Magnet (mm):          9
Length of Magnet (mm):          52
Type of Magnet:        Y30


     PERMANENT MAGNET DATA

Residual Flux Density (Tesla):        0.4
Coercive Force (kA/m):        188
Maximum Energy Density (kJ/m^3):        28.0001
Relative Recoil Permeability:        1.09991
Demagnetized Flux Density (Tesla):        0.169531
Recoil Residual Flux Density (Tesla):        0.376299
Recoil Coercive Force (kA/m):        272.256


     COMMUTATOR & BRUSH DATA

Type of Commutator:        Cylinder Type
Commutator Diameter (mm):          28.2
Commutator Length (mm):          15
Commutator Insulation (mm):          0.5
Brush Width (mm):          6.5
Brush Length (mm):          7
Number of Brush Pairs:        1
Press per Unit Area (g/mm^2):        2
Frictional Coefficient:        0.25
Magnetic Shaft:        No

     MATERIAL CONSUMPTION

Armature Copper Density (kg/m^3):          8900
Permanent Magnet Density (kg/m^3):          7800
Armature Core Steel Density (kg/m^3):          7820
Rotor Core Steel Density (kg/m^3):          7872

Armature Copper Weight (kg):          0.400368
Permanent Magnet Weight (kg):          0.519531
Armature Core Steel Weight (kg):          0.371498
Stator Core Steel Weight (kg):          0.600874
Total Net Weight (kg):          1.89227

Armature Core Steel Consumption (kg):          1.08004
Stator Core Steel Consumption (kg):          0.600874


     NO-LOAD MAGNETIC DATA

Rotor-Teeth Flux Density (Tesla):        1.6377
Rotor-Yoke Flux Density (Tesla):        1.56831
Stator-Yoke Flux Density (Tesla):        1.63126
Air-Gap Flux Density (Tesla):        0.387442
Magnet Flux Density (Tesla):        0.325265

Rotor-Teeth Ampere Turns (A.T):        55.8661
Rotor-Yoke Ampere Turns (A.T):        15.905
Stator-Yoke Ampere Turns (A.T):        80.2195
Air-Gap Ampere Turns (A.T):        180.41
Magnet Ampere Turns (A.T):        -332.311

Armature Reactive Ampere Turns
  at Start Operation (A.T):        7322.94
Leakage-Flux Factor:        1
Correction Factor for Magnetic
  Circuit Length of Rotor Yoke:        0.375324
Correction Factor for Magnetic
  Circuit Length of Stator Yoke:        0.363019

No-Load Speed (rpm):        4340.46
No-Load Current (A):        0.0269393
No-Load Input Power (W):        5.92665

Torque Constant KT (Nm/A):        0.478583
Back-EMF Constant KE (Vs/rad):        0.478583

Cogging Torque (N.m):        0.0374376


     FULL-LOAD DATA

Input Current (A):        1.60575
Armature Current (A):        0.802876
Armature Thermal Load (A^2/mm^3):        160.464
Specific Electric Loading (A/mm):        22.7861
Armature Current Density (A/mm^2):        7.0422
Frictional and Windage Loss (W):        2.49969
Iron-Core Loss (W):        2.49445
Armature Copper Loss (W):        44.8271
Brush Loss (W):        3.2115
Total Loss (W):        53.0327
Output Power (W):        300.233
Input Power (W):        353.265
Efficiency (%):        84.9879

Rated Speed (rpm):        3792.78
Rated Torque (N.m):        0.755912

Locked-Rotor Torque (N.m):        6.00109
Locked-Rotor Current (A):        12.5393


     COMMUTATING DATA

Induced Voltage by Inductance (V):        5.31453
Induced Voltage
  by Armature Reaction Field (V):        3.45652
Induced Voltage by Main Field (V):        0.00392496
Total Induced Voltage (V):        8.77497


     TRANSIENT FEA INPUT DATA

For Armature Winding:
  Number of Turns:        2336
  Parallel Branches:        2
  Terminal Resistance (ohm):        17.3854
  End Leakage Inductance (H):        0.0157753
For One Armature Coil:
  Number of Turns:        146
  Parallel Branches:        1
  Terminal Resistance (ohm):        4.69385
  End Leakage Inductance (H):        0.00394382
2D Equivalent Value:
  Equivalent Model Depth (mm):        45
  Equivalent Stator Stacking Factor:        2.37778
  Equivalent Rotor Stacking Factor:        1
  Equivalent Br (Tesla):        0.384661
  Equivalent Hc (kA/m):        272.256
Estimated Rotor Inertial Moment (kg m^2):        0.000259796

新手,有几个问题: 1. GIVED Rated Speed 4150  .   2. No-load speed 4340  3.Rated  Speed 3792.78.   问题1.给定的是额定转速为4150,算出的是3792; No -Speed为4340,实际做出的电机转速为5200左右.  3.存在的差别是直接改变绕组匝数和线径来改变吗 4.槽满率一般去多少比较合适  5.端部线包高度和转子外径一般去怎样的比例.
   新手迷惑,请高手指点

czq210006

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