Chapter 4 Winding Editor Workshop 3. Training Manual Electromagnetic Analysis in Workbench March 4,...
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Transcript of Chapter 4 Winding Editor Workshop 3. Training Manual Electromagnetic Analysis in Workbench March 4,...
Chapter 4
Winding Editor
Workshop 3
March 4, 2005Inventory
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Training Manual
Electromagnetic Analysis in Workbench
• Workshop #3: Winding editor
• A simple arrangement of 3 phase coils in air is to be constructed using the winding editor. The objectives will be to calculate the field and self and mutual inductance.
3 phase winding in air, 100 turns each
iA = 10° A
iB = 1120° A
iC = 1240° A
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Training Manual
Electromagnetic Analysis in Workbench
• Upon entering the workbench environment, choose new geometry.
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Training Manual
Electromagnetic Analysis in Workbench
• Change the desired unit length to millimeters.
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Training Manual
Electromagnetic Analysis in Workbench
• Bring up the Winding Tool. Set the number of slots to 6.
• Define the “phase A” circuit as follows:
a) Comprised of 1 coil
b) 100 turns
c) Current flows into slot 1, out of slot 2
d) End geometry is an arc
e) End clearance: 5 mm
f) Radius in/out: 50 mm
g) Cross section dimensions: 5 X 5 mm
h) Declare the XYPlane to be the center plane (steps 4-6 at right)
i) Click generate
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4: Click in this box to activate the Apply/cancel buttons
5
6: Click Apply
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Training Manual
Electromagnetic Analysis in Workbench
1
• Use “Show Cross Section Solids” to display the full geometry of the coil.
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Training Manual
Electromagnetic Analysis in Workbench
• Create phases B and C in the table as shown in steps 2 – 4. Click on generate. The 6 equally spaced slot locations are shown at right. When the slot angle is zero, slot 1 lies on the XY plane of the base plane.
2 3 4
5
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
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Training Manual
Electromagnetic Analysis in Workbench
• Note the effect of modifying the slot angle. Temporarily change it to 30° and click generate. Restore to zero and click generate again.
30°
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Training Manual
Electromagnetic Analysis in Workbench
• Note the effect of modifying the skew angle. Temporarily change it to 10° and click generate. Restore to zero and click generate again.
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Training Manual
Electromagnetic Analysis in Workbench
• Note the effect of modifying the cross section length. Temporarily change it to 20 mm and click generate. Restore to 5 mm and click generate again.
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Training Manual
Electromagnetic Analysis in Workbench
• Create a cylindrical enclosure aligned with the active (XYPlane) z axis extending 50 mm beyond the coil geometry. 1
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Training Manual
Electromagnetic Analysis in Workbench
• Save the geometry.
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Training Manual
Electromagnetic Analysis in Workbench
• Click on the Project tab and create a new simulation. 1
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Training Manual
Electromagnetic Analysis in Workbench
• Click on Environment in the tree with the right mouse button (RMB) and insert a magnetic flux parallel boundary condition.
1 (RMB)
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Training Manual
Electromagnetic Analysis in Workbench
• Hold down the CTRL button as you select (LMB) individual surfaces of the enclosure. Use the middle mouse button to rotate the geometry so that previously hidden surfaces face you, then add them to the selected set.
• Once all 3 surfaces are selected, click Apply.
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Training Manual
Electromagnetic Analysis in Workbench
• Define a 1 A current at a phase angle of 0° in conductor A. Similarly, define the following conductor currents:
• Conductor B: iB = 1 120° A
• Conductor C: iC = 1 240° A
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Training Manual
Electromagnetic Analysis in Workbench
• Inset a request for Total Flux Density calculations.
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1 (RMB)
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Training Manual
Electromagnetic Analysis in Workbench
• Inset a request for inductance calculations and click Solve. We will not bother looking at the mesh.
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Training Manual
Electromagnetic Analysis in Workbench
• View the resulting flux density. You will at first find yourself looking at an opaque contour plot that hides the field quantities from view. Select buttons 2 – 5 to obtain the vector plot shown at right.
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Training Manual
Electromagnetic Analysis in Workbench
• Bring up the inductance matrix. The diagonal terms are coil self inductances. Off-diagonal terms are mutual inductances.
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