Rotor Core Geometry
The rotor lamination is defined with the following parameters:
| Description | Value | Script syntax |
|---|---|---|
| Rotor length (without airducts) | 350 mm | Input.Geometry.Lst2= 350e-3 |
| Stacking factor | 95% | Input.Geometry.Kst2=0.95 |
| Material | M400-50A | Input.Material.mat_lam2=’M400-50A’ |
| Skew | No | Input.Geometry.skew_rater=0 |
| Radial ventilation ducts | No | Input.Thermics.Nrvdr=0 |
- Step 9: Rotor Lamination
Axial Ventilation Ducts
To set the Axial Ventilation Ducts with the GUI one must check the "Axial Ventilation Ducts" box and click on the button "set axial ducts". MANATEE can handle several sets of axial ventilation ducts. In this case, there is only one set composed of 8 circular ventilations ducts. According to the schematics, the corresponding parameters are :
| Description | Value | MANATEE Parameter |
|---|---|---|
| Type of ventilation ducts | 0 | Input.Thermics.type_axial_ductr=0 |
| Number of ducts by set | 8 | Input.Thermics.Navdr = [8] |
| Radius of the center of the ducts by set | 70e-3 | Input.Thermics.Havdr = [70e-3] |
| Ducts diameters by set | 20e-3 | Input.Thermics.Davdr = [20e-3] |
- Step 9: Rotor ventilation ducts setup and preview
Rotor slot
The slot shape 21 is selected following MANATEE slot schematics.
| Description | Value | MANATEE Parameter |
|---|---|---|
| Slot shape | 21 | Input.Geometry.type_slot_shapes = 21 |
| Number of rotor slots | 28 | Input.Geometry.Zr = 28 |
| Slot opening width | 3 mm | Input.Geometry.W0r = 3e-3 |
| Slot bottom width | 13 mm | Input.Geometry.W1r = 13e-3 |
| Slot top width | 10 mm | Input.Geometry.W2r = 10e-3 |
| Slot isthmus height | 3 mm | Input.Geometry.H0r = 3e-3 |
| Intermediate height | 0 mm | Input.Geometry.H1s = [0 0] |
| Slot depth | 20 mm | Input.Geometry.H2r = 20e-3 |
- Step 10: Rotor Slot
- Rotor slot preview
Squirrel Cage
| Description | Value | MANATEE Parameter |
|---|---|---|
| Bar shape | Rectangular | Input.Magnetics.type_conductor2=0 |
| Bar height | 20 mm | Input.Geometry.Hwire2 = 20e-3 |
| Bar width | 10 mm | Input.Geometry.Wwire2 = 10e-3 |
| Short circuit ring section radial height | 20 mm | Input.Geometry.Hscr = 20e-3 |
| Short circuit ring section axial length | 10 mm | Input.Geometry.Lscr = 15e-3 |
| Length of rotor bars out of rotor stack | 17 mm | Input.Geometry.Lrewout = 17e-3 |
- Step 11: Rotor Bar
In the script you will also need to short circuit the winding with:
Input.Magnetics.type_winding2=10;Finally in the GUI, one can preview the complete machine with the preview button at the bottom of the last step (11: Rotor bar):
- Machine final preview
