完整版用maxwell对变压器的建模仿真教程
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该变压器模型采用EE型铁芯,通入单向交流电,通过maxwell的3D 模型构建为两层,分为初级和次级同轴绕制。
1.建模(Model)
Project > Insert Maxwell 3D Design
File>Save as> transformer
选择求解器类型:Maxwell > Solution Type> Magnetostatic
创建变压器铁芯框架
Draw > Box
)(-5.5,-15,0Position:
11,30,26)XSize, YSize, ZSize)>(Box尺寸:(Draw > Box
-5.5,5.5 ,5():Position
11,4.5,16)()尺寸:(BoxXSize, YSize, ZSize>Box2
选中Edit > Duplicate > Around Axis
Axis: Z
Angle: 180 deg
Total number: 2
选中Box1 ,Box2,Box2_1
Modeler > Boolean > Subtract
Blank Parts: Box1
Tool Parts: Box2,Box2_1
不要选:“Clone tool objectsbefore subtracting”
Draw > Box(创建Gap(缺口))
Position:(-5.5,15 ,12.98)
Box尺寸:(XSize, YSize, ZSize)>(11,30,0.04)
选中Box1 ,Box3
Modeler > Boolean > Subtract
Blank Parts: Box1
Tool Parts: Box3
不要选:“Clone tool objectsbefore subtracting”
选中Box1
Modeler > Boolean > Separate Bodies
将分离后的模型分别重命名为:“Core_up”(原Box1)和“Core_down”将两者的材料重设为:“ferrite”为铁氧体的材料属性。
创建线圈
初级绕组
Modeler > Grid Plane > YZ
Draw > Rectangle
Position:(0,6 ,5.5)
Box尺寸:(XSize, YSize, ZSize)>(0,1,15)
Modeler > Grid Plane > XY
Draw > Rectangle
Position:(-6,-6 ,13)
Box尺寸:(XSize, YSize, ZSize)>(12,12,0)
选中Rectangle2
Modeler > Delete Last Operation(形成Rectangle1围绕的轨迹)
选中Rectangle1,Rectangle2
(可以形成环形线圈)Draw > Sweep > Along PathAngle of twist: 0deg
Draft Angle: 0deg
Draft type: Round
次级绕组
Modeler > Grid Plane > YZ
Draw > Rectangle
Position:(0,7.5 ,5.5)
Box尺寸:(XSize, YSize, ZSize)>(0,2,15)
Modeler > Grid Plane > XY
Draw > Rectangle
Position:(-7.5,-7.5 ,13)
Box尺寸:(XSize, YSize, ZSize)>(15,15,0)
选中Rectangle4
Modeler > Delete Last Operation
选中Rectangle3,Rectangle4
Draw > Sweep > Along Path
Angle of twist: 0deg
Draft Angle: 0deg
Draft type: Round
Coil_in, Coil_out
重命名为:Rectangle4 和Rectangle2将.
Copper
的材料改为将所有Coil )创建激励电流加载面(Create Section 选中所有线圈Modeler > Surface > Section
YZ选中平面Modeler > Boolean > Separate Bodies
Edit > Delete(删除多余的面)
将生成的截面重命名为:Section1, Section2
创建计算区域(Region)
Draw > Region
)设置激励2.(Assign ExcitationSection1
选中内层线圈截面:Maxwell 3D> Excitations > Assign > Current Name: chuji
Value: 10A
Type: Stranded
选外层线圈截面:Section2
Maxwell 3D> Excitations > Assign > Current
Name: 次级
Value: 15A
Type: Stranded
3.设置自适应计算参数(Create Analysis Setup)
Maxwell 3D > Analysis Setup > Add Solution Setup
最大迭代次数:Maximum number of passes :10
误差要求:Percent Error: 1%
每次迭代加密剖分单元比例:Refinement per Pass : 30%
设置非线性残差:nonlinear residual: 0.001