电磁计算参考

ADJUSTABLE-SPEED PERMANENT MAGNET SYNCHRONOUS MOTOR DESIGN

File: c:/users/jxj/maxwell/default/z340-1000-2.pjt/z340-1000-2.res

GENERAL DATA

Rated Output Power (kW):13.4

Rated Voltage (V):340

Number of Poles:24

Frequency (Hz):38.2

Friction and Wind Loss (W):0

Rotor Position:Outer

Type of Circuit:Y3

Type of Source:Sine

Domain:Frequency

Operating Temperature (C):75

STATOR DATA

Number of Stator Slots:54

Outer Diameter of Stator (mm): 445

Inner Diameter of Stator (mm): 300

Type of Stator Slot:2

Dimension of Stator Slot

hs0 (mm): 1

hs1 (mm): 2.3

hs2 (mm): 36

bs0 (mm): 4

bs1 (mm): 12

bs2 (mm): 8.2

Top Tooth Width (mm): 13.5051

Bottom Tooth Width (mm): 13.1163

Skew Width (Number of Slots):1

Length of Stator Core (mm): 90

Stacking Factor of Stator Core:0.97

Type of Steel:DW540-50

Slot Insulation Thickness (mm): 0.4

End Length Adjustment (mm): 5

Number of Parallel Branches:2

Number of Conductors per Slot:70

Type of Coils:21

Average Coil Pitch:2

Number of Wires per Conductor:4

Wire Diameter (mm): 0.08

Wire Wrap Thickness (mm): 0.09

Stator Slot Fill Factor (%):77.4213

Coil Half-Turn Length (mm): 170.633

ROTOR DATA

Minimum Air Gap (mm): 0.8

Outer Diameter (mm): 500

Length of Rotor (mm): 90

Stacking Factor of Iron Core:1

Type of Steel:D23

Polar Arc Radius (mm): 223.3

Mechanical Pole Embrace:0.85

Electrical Pole Embrace:0.847242

Max. Thickness of Magnet (mm): 6

Width of Magnet (mm): 49.5884

Type of Magnet:n35sh

Type of Rotor:1

PERMANENT MAGNET DATA

Residual Flux Density (Tesla):1.18

Coercive Force (kA/m):907

Maximum Energy Density (kJ/m^3):268

Relative Recoil Permeability:1.03197

Demagnetized Flux Density (Tesla):0.315094

Recoil Residual Flux Density (Tesla):1.17795

Recoil Coercive Force (kA/m):908.371

MATERIAL CONSUMPTION

Armature Copper Density (kg/m^3): 00

Permanent Magnet Density (kg/m^3): 7800

Armature Core Steel Density (kg/m^3): 7750

Rotor Core Steel Density (kg/m^3): 7800

Armature Copper Weight (kg): 14.3137

Permanent Magnet Weight (kg): 5.09063

Armature Core Steel Weight (kg): 42.3352

Rotor Core Steel Weight (kg): 21.8809

Total Net Weight (kg): 83.6204

Armature Core Steel Consumption (kg): 135.791

Rotor Core Steel Consumption (kg): 21.8809

STEADY STATE PARAMETERS

Stator Winding Factor:0.945214

D-Axis Reactive Reactance Xad (ohm):1.09531

Q-Axis Reactive Reactance Xaq (ohm):1.09531

D-Axis Reactance X1+Xad (ohm):2.39299

Q-Axis Reactance X1+Xaq (ohm):2.39299

Armature Leakage Reactance X1 (ohm):1.29768

Zero-Sequence Reactance X0 (ohm):1.05671

Armature Phase Resistance R1 (ohm):0.467766

NO-LOAD MAGNETIC DATA

Stator-Teeth Flux Density (Tesla):1.8607

Stator-Yoke Flux Density (Tesla):0.771067

Rotor-Yoke F

lux Density (Tesla):1.10083

Air-Gap Flux Density (Tesla):0.907319

Magnet Flux Density (Tesla):0.91905

Stator-Teeth Ampere Turns (A.T):546.401

Stator-Yoke Ampere Turns (A.T):1.54854

Rotor-Yoke Ampere Turns (A.T):8.27401

Air-Gap Ampere Turns (A.T):1.49

Magnet Ampere Turns (A.T):-1197.

Leakage-Flux Factor:1

Correction Factor for Magnetic

Circuit Length of Stator Yoke:0.716316

Correction Factor for Magnetic

Circuit Length of Roor Yoke:0.533658

No-Load Line Current (A):18.72

No-Load Input Power (W):609.197

Cogging Torque (N.m):1.62686e-011

FULL-LOAD DATA

Maximum Line Induced Voltage (V):426.446

Root-Mean-Square Line Current (A):29.9557

Root-Mean-Square Phase Current (A):29.9557

Armature Thermal Load (A^2/mm^3):243.258

Specific Electric Loading (A/mm):40.4971

Armature Current Density (A/mm^2):6.00681

Friction and Wind Loss (W):0

Iron-Core Loss (W):112.51

Armature Copper Loss (W):1259.22

Total Loss (W):1371.73

Output Power (W):13406

Input Power (W):14777.7

Efficiency (%):90.7176

Synchronous Speed (rpm):191

Rated Torque (N.m):670.249

Torque Angle (degree):17.05

Maximum Output Power (W):34684.6

WINDING ARRANGEMENT

The 3-phase, 2-layer winding can be arranged in 9 slots as below:

AZBCYABXC

Angle per slot (elec. degrees):80

Phase-A axis (elec. degrees):100

First slot center (elec. degrees):0

TRANSIENT FEA INPUT DATA

For Armature Winding:

Number of Turns:630

Parallel Branches:2

Terminal Resistance (ohm):0.467766

End Leakage Inductance (H):0.000285943

2D Equivalent Value:

Equivalent Air-Gap Length (mm):90

Equivalent Stator Stacking Factor:0.97

Equivalent Rotor Stacking Factor:1

Equivalent Br (Tesla):1.17795

Equivalent Hc (kA/m):908.371

Estimated Rotor Inertial Moment (kg m^2):3.73717