表贴式永磁同步电机内功率因数角正负的问题
RMXpert计算出表贴式永磁同步电机内功率因数角为-35度，合理吗？求高手指教！！！
ADJUSTABLE-SPEED PERMANENT MAGNET SYNCHRONOUS MOTOR DESIGN
File: Setup1.res
GENERAL DATA
Rated Output Power (kW): 15
Rated Voltage (V): 280
Number of Poles: 8
Frequency (Hz): 100
Frictional Loss (W): 150
Windage Loss (W): 0
Rotor Position: Inner
Type of Circuit: Y3
Type of Source: Sine
Domain: Frequency
Operating Temperature (C): 75
STATOR DATA
Number of Stator Slots: 36
Outer Diameter of Stator (mm): 260
Inner Diameter of Stator (mm): 150
Type of Stator Slot: 2
Stator Slot
hs0 (mm): 0.8
hs1 (mm): 0.92
hs2 (mm): 30
bs0 (mm): 2.2
bs1 (mm): 5.4
bs2 (mm): 10.64
Top Tooth Width (mm): 7.99232
Bottom Tooth Width (mm): 8.0016
Skew Width (Number of Slots): 0.5
Length of Stator Core (mm): 130
Stacking Factor of Stator Core: 0.95
Type of Steel: DW315_50
Slot Insulation Thickness (mm): 0.3
Layer Insulation Thickness (mm): 0.3
End Length Adjustment (mm): 0
Number of Parallel Branches: 2
Number of Conductors per Slot: 28
Type of Coils: 21
Average Coil Pitch: 4
Number of Wires per Conductor: 7
Wire Diameter (mm): 0.9
Wire Wrap Thickness (mm): 0.08
Slot Area (mm^2): 290.313
Net Slot Area (mm^2): 251.112
Limited Slot Fill Factor (%): 75
Stator Slot Fill Factor (%): 74.9619
Coil Half-Turn Length (mm): 232.245
Wire Resistivity (ohm.mm^2/m): 0.0217
ROTOR DATA
Minimum Air Gap (mm): 1
Inner Diameter (mm): 60
Length of Rotor (mm): 130
Stacking Factor of Iron Core: 0.95
Type of Steel: DW315_50
Polar Arc Radius (mm): 74
Mechanical Pole Embrace: 0.8
Electrical Pole Embrace: 0.799309
Max. Thickness of Magnet (mm): 4
Width of Magnet (mm): 45.2389
Type of Magnet: NdFe38UH
Type of Rotor: 1
Magnetic Shaft: No
PERMANENT MAGNET DATA
Residual Flux Density (Tesla): 1.22
Coercive Force (kA/m): 960
Maximum Energy Density (kJ/m^3): 292.8
Relative Recoil Permeability: 1.01133
Demagnetized Flux Density (Tesla): 0
Recoil Residual Flux Density (Tesla): 1.22
Recoil Coercive Force (kA/m): 960
MATERIAL CONSUMPTION
Armature Wire Density (kg/m^3): 8900
Permanent Magnet Density (kg/m^3): 7650
Armature Core Steel Density (kg/m^3): 7600
Rotor Core Steel Density (kg/m^3): 7600
Armature Copper Weight (kg): 9.27833
Permanent Magnet Weight (kg): 1.43968
Armature Core Steel Weight (kg): 23.437
Rotor Core Steel Weight (kg): 11.7948
Total Net Weight (kg): 45.9498
Armature Core Steel Consumption (kg): 49.8475
Rotor Core Steel Consumption (kg): 15.0745
STEADY STATE PARAMETERS
Stator Winding Factor: 0.945214
D-Axis Reactive Reactance Xad (ohm): 1.09152
Q-Axis Reactive Reactance Xaq (ohm): 1.09152
D-Axis Reactance X1+Xad (ohm): 1.89188
Q-Axis Reactance X1+Xaq (ohm): 1.89188
Armature Leakage Reactance X1 (ohm): 0.800355
Zero-Sequence Reactance X0 (ohm): 0.625703
Armature Phase Resistance R1 (ohm): 0.0950632
Armature Phase Resistance at 20C (ohm): 0.0781972
NO-LOAD MAGNETIC DATA
Stator-Teeth Flux Density (Tesla): 1.63017
Stator-Yoke Flux Density (Tesla): 1.13153
Rotor-Yoke Flux Density (Tesla): 0.558221
Air-Gap Flux Density (Tesla): 0.887408
Magnet Flux Density (Tesla): 0.938605
Stator-Teeth By-Pass Factor: 0.00313134
Stator-Yoke By-Pass Factor: 9.11589e-006
Rotor-Yoke By-Pass Factor: 6.42588e-006
Stator-Teeth Ampere Turns (A.T): 119.793
Stator-Yoke Ampere Turns (A.T): 4.24216
Rotor-Yoke Ampere Turns (A.T): 0.781056
Air-Gap Ampere Turns (A.T): 761.224
Magnet Ampere Turns (A.T): -885.703
Leakage-Flux Factor: 1
Correction Factor for Magnetic
Circuit Length of Stator Yoke: 0.579249
Correction Factor for Magnetic
Circuit Length of Rotor Yoke: 0.733564
No-Load Line Current (A): 13.0817
No-Load Input Power (W): 331.03
Cogging Torque (N.m): 8.07589e-011
FULL-LOAD DATA
Maximum Line Induced Voltage (V): 459.61
Root-Mean-Square Line Current (A): 33.2338
Root-Mean-Square Phase Current (A): 33.2338
Armature Thermal Load (A^2/mm^3): 132.629
Specific Electric Loading (A/mm): 35.5436
Armature Current Density (A/mm^2): 3.73145
Frictional and Windage Loss (W): 150
Iron-Core Loss (W): 131.44
Armature Copper Loss (W): 314.982
Total Loss (W): 596.422
Output Power (W): 15005.1
Input Power (W): 15601.5
Efficiency (%): 96.1772
Power Factor: 0.959875
IPF Angle (degree): -35.1373
NOTE: IPF Angle is Internal Power Factor Angle.
Synchronous Speed (rpm): 1500
Rated Torque (N.m): 95.5255
Torque Angle (degree): 18.8515
Maximum Output Power (W): 45524.8
Torque Constant KT (Nm/A): 0
WINDING ARRANGEMENT
The 3-phase, 2-layer winding can be arranged in 9 slots as below:
AAZBBXCCY
Angle per slot (elec. degrees): 40
Phase-A axis (elec. degrees): 100
First slot center (elec. degrees): 0
TRANSIENT FEA INPUT DATA
For Armature Winding:
Number of Turns: 168
Parallel Branches: 2
Terminal Resistance (ohm): 0.0950632
End Leakage Inductance (H): 0.000120286
2D Equivalent Value:
Equivalent Model Depth (mm): 130
Equivalent Stator Stacking Factor: 0.95
Equivalent Rotor Stacking Factor: 0.95
Equivalent Br (Tesla): 1.22
Equivalent Hc (kA/m): 960
Estimated Rotor Inertial Moment (kg m^2): 0.0477622
请问楼主你用的是什么版本的Rmxprt软件？我们现在使用的V16版本都没有 Power Factor，IPF Angle (degree) 这两个选项。 你这个算例中最大反电势有459V，则反电势有效值大概有330V左右，而你给的施加电压只有278V，太小了，起码是反电势/（0.92--0.96）才是施加电压。 chenwenmin 发表于 2014-7-3 08:15
你这个算例中最大反电势有459V，则反电势有效值大概有330V左右，而你给的施加电压只有278V，太小了，起码是 ...
你做的是什么电机？
kt266a 发表于 2014-7-19 10:24
你做的是什么电机？
大功率调速永磁同步电机 有人知道內功率因數角的定義嗎? 路过！了解一下{:soso_e100:} {:soso_e100:}学习了 反电势大于输入端电压
根据电机矢量图查找一下电压与反电势的夹角；电压与电流的夹角就知道了 路过学习一下了{:soso_e100:} 反电势太大了，需要调整参数调低反电势 学习了，谢谢{:soso_e100:} 用RM计算出来的好像不太准确啊 请问你知道怎么用2D计算吗 学习了，我也有一样的问题，V16版本中怎么没有功率因数和转角这一项呢？ chenwenmin 发表于 2014-7-3 08:11
请问楼主你用的是什么版本的Rmxprt软件？我们现在使用的V16版本都没有 Power Factor，IPF Angle (degree)...
怎么可能没有？V16有功率因子啊 刚刚了解电磁，学习一下 反电动势一般设计成小于U，如果大于U，那么电机成本高，并且运行于容性功率因数状态 在设置时
Type of Source: Sine
Domain: Frequency
就看得到IPF等 当内功率因数角为负数时，表示定子电流滞后反电势35度，此时的定子直轴电枢电流起增磁作用，使得反电势增大。同时，你的RM路算程序中已经体现了确实反电势过大，所以内功率因数角取-35度是不合理的。 rm里面，IPF角为负值时，代表电机运行于去磁状态，也就是id是负的
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