LamSquirrelCage (class)

Method code available at https://github.com/Eomys/pyleecan/tree/master/pyleecan/Methods/Machine/LamSquirrelCage

class LamSquirrelCage(Hscr=0.03, Lscr=0.015, ring_mat=-1, Ksfill=None, winding=-1, slot=-1, L1=0.35, mat_type=-1, Nrvd=0, Wrvd=0, Kf1=0.95, is_internal=True, Rint=0, Rext=1, is_stator=True, axial_vent=-1, notch=-1, init_dict=None, init_str=None)[source]

Bases: pyleecan.Classes.LamSlotWind.LamSlotWind

squirrel cages lamination

VERSION = 1
build_geometry(sym=1, alpha=0, delta=0, is_simplified=False)

Build geometry of the LamSquirrelCage

Parameters
  • self – LamSquirrelCage Object

  • sym (int) – Symmetry factor (1= full machine, 2= half of the machine…)

  • alpha (float) – Angle for rotation [rad]

  • delta (complex) – Complex value for translation

  • is_simplified (bool) – True to avoid line superposition

Returns

surf_list – list of surfaces

Return type

list

check()

Check that the Lamination object is correct

Parameters

self (LamSquirrelCage) – A LamSquirrelCage object

Returns

Return type

None

Raises
  • SCC_NotARotor – A LamSquirrelCage Lamination can’t be a stator

  • SCC_WrongCond – A LamSquirrelCage’s conductor must be a type 2_1

comp_length_ring()

Computation of the ring length

Parameters

self (LamSquirrelCage) – A LamSquirrelCage object

Returns

Lring – Length of the ring [m]

Return type

float

plot(fig=None, ax=None, is_lam_only=False, sym=1, alpha=0, delta=0, is_edge_only=False, is_show_fig=True)

Plot the Lamination in a matplotlib fig

Parameters
  • self (LamSquirrelCage) – A LamSquirrelCage object

  • fig (Matplotlib.figure.Figure) – existing figure to use if None create a new one

  • ax (Matplotlib.axes.Axes object) – Axis on which to plot the data

  • is_lam_only (bool) – True to plot only the lamination (remove the bare)

  • sym (int) – Symmetry factor (1= full machine, 2= half of the machine…)

  • alpha (float) – Angle for rotation [rad]

  • delta (complex) – Complex value for translation

  • is_edge_only (bool) – To plot transparent Patches

  • is_show_fig (bool) – To call show at the end of the method

Returns

Return type

None

comp_number_phase_eq()

Compute the equivalent number of phase

Parameters

self (LamSquirrelCage) – A LamSquirrelCage object

Returns

qb – Zs/p

Return type

float

comp_periodicity()

Compute the periodicity factor of the lamination

Parameters

self (LamSquirrelCage) – A LamSquirrelCage object

Returns

  • per_a (int) – Number of spatial periodicities of the lamination

  • is_antiper_a (bool) – True if an spatial anti-periodicity is possible after the periodicities

  • per_t (int) – Number of time periodicities of the lamination

  • is_antiper_t (bool) – True if an time anti-periodicity is possible after the periodicities

comp_surface_ring()

Computation of the ring cross-section surface area

Parameters

self (LamSquirrelCage) – A LamSquirrelCage object

Returns

Lring – Surface area of the cross-section of the ring [m^2]

Return type

float

save(save_path='', is_folder=False)

Save the object to the save_path

Parameters
  • self – A pyleecan object

  • save_path (str) – path to the folder to save the object

  • is_folder (bool) – to split the object in different files: separate simulation machine and materials

copy()

Return a copy of the class

get_logger()

Get the object logger or its parent’s one

Parameters

obj – A pyleecan object

Returns

logger – Pyleecan object dedicated logger

Return type

logging.Logger

as_dict()[source]

Convert this object in a json seriable dict (can be use in __init__)

property Hscr

short circuit ring section radial height [m]

Type

float

Min

0

property Lscr

short circuit ring section axial length

Type

float

Min

0

property ring_mat

Material of the Rotor short circuit ring

Type

Material