pyleecan.Classes.LamSlotWind module

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

class LamSlotWind(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, skew=None, bore=None, yoke=None, init_dict=None, init_str=None)

Bases: LamSlot

Lamination with Slot filled with winding

VERSION = 1

build_geometry(sym=1, alpha=0, delta=0, is_circular_radius=False)

Build the geometry of the Lamination with winding in slots

Parameters:

• self (LamSlotWind) – A LamSlotWind 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_circular_radius (bool) – True to add surfaces to “close” the Lamination radii

Returns:

surf_list – list of surfaces needed to draw the lamination

Return type:

list

check()

Check that the Lamination object is correct

Parameters:

self – A LamSlotWind object

Return type:

None

Raises:

• LWC_SlotTooLong – The Slot is too long for the lamination (HYoke <0)

• LWC_MismatchPhase – The Winding and the Converter don’t have the same number of phase

• LWC_OverlappingSlot – The Lamination has overlapping slot

comp_masses()

Compute the Lamination masses

Parameters:

self (LamSlotWind) – A LamSlotWind object

Returns:

M_dict – Lamination mass dictionary (Mtot, Mlam, Mwind) [kg]

Return type:

dict

comp_surfaces()

Compute the Lamination surfaces (Slam, Svent, Sslot, Swind)

Parameters:

self (LamSlotWind) – A LamSlotWind object

Returns:

S_dict – Lamination surface dictionary (Slam, Svent, Sslot, Swind) [m**2]

Return type:

dict

comp_volumes()

Compute the Lamination volumes (Vlam, Vvent, Vslot, Vwind)

Parameters:

self (LamSlotWind) – A LamSlotWind object

Returns:

V_dict – Lamination volume dictionary (Vlam, Vvent, Vslot, Vwind) [m**3]

Return type:

dict

get_pole_pair_number()

Return the number of pair of pole of the Lamination

Parameters:

self (LamSlotWind) – A LamSlotWind object

Returns:

p – Number of pair of pole

Return type:

int

plot(fig=None, ax=None, is_lam_only=False, sym=1, alpha=0, delta=0, is_edge_only=False, edgecolor=None, is_add_arrow=False, is_display=True, is_add_sign=True, is_show_fig=True, save_path=None, win_title=None, is_legend=True, is_clean_plot=False, is_winding_connection=False, is_winding_connection_phase_A=False)

Plot the Lamination in a matplotlib fig

Parameters:

• self (LamSlotWind) – A LamSlotWind 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 Winding)

• 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

• edgecolor – Color of the edges if is_edge_only=True

• is_display (bool) – False to return the patches

• is_add_sign (bool) – True to Add + / - on the winding

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

• save_path (str) – full path including folder, name and extension of the file to save if save_path is not None

• win_title (str) – Title for the window

• is_legend (bool) – True to add the legend

• is_clean_plot (bool) – True to remove title, legend, axis (only machine on plot with white background)

• is_winding_connection (bool) – True to display winding connections (plot based on plot_polar_layout method of swat-em)

• is_winding_connection – True to display winding connections on phase A only

Returns:

• patches (list) – List of Patches

• fig (Matplotlib.figure.Figure) – Figure containing the plot

• ax (Matplotlib.axes.Axes object) – Axis containing the plot

plot_winding(wind_mat=None, all_slot=False, is_show_fig=True, save_path=None, win_title=None)

Plot the Winding in a matplotlib fig

Parameters:

• self (LamSlotWind) – A: LamSlotWind object

• wind_mat (numpy.ndarray) – Winding Matrix, if None will call get_connection_mat (Default value = None)

• all_slot (bool) – True if we plot all slot and false when plotting only needed one(sym)

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

• save_path (str) – full path including folder, name and extension of the file to save if save_path is not None

• win_title (str) – Window title

Return type:

None

comp_fill_factor()

Compute the fill factor of the winding

Parameters:

self (LamSlotWind) – a LamSlotWind object

Returns:

Kfill – fill factor of the winding

Return type:

float

comp_output_geo()

Compute the main geometry output

Parameters:

self (Lamination) – A Lamination object

Returns:

output – Main geometry output of the lamintion

Return type:

OutGeoLam

get_polar_eq()

Returns a polar equivalent of the lamination

Parameters:

self (LamSlotWind) – A LamSlotWind object to convert to polar

Returns:

polar_eq – The polar equivalent of the lamination

Return type:

LamSlotWind

comp_wind_function(angle=None, Na=2048, alpha_mmf0=0, per_a=1)

Computation of the winding function for the lamination. By convention a tooth is centered on the X axis

Parameters:

• self (LamSlotWind) – A LamSlotWind object

• angle (ndarray) – Space discretization to compute the winding functions

• Na (int) – Number of angular points for the winding function (not used if angle is set)

• alpha_mmf0 (float) – Angle to shift the winding function (Default value = 0)

• per_a (int) – Spatial periodicity factor

Returns:

wf – Winding function Matrix (qs,Na)

Return type:

ndarray

plot_mmf_unit(save_path=None, is_show_fig=False)

Plot the winding unit mmf as a function of space

Parameters:

• self (LamSlotWind) – an LamSlotWind object

• save_path (str) – File path to save the figure

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

Returns:

fig – Figure containing the plot

Return type:

Matplotlib.figure.Figure

comp_resistance_wind(T=20)

Compute the DC winding resistance per phase without skin effect at average temperature T degC

Parameters:

• self (LamSlotWind) – a LamSlotWind object

• T (float) – mean winding temperature [°C], default value is 20°C

Returns:

R – DC winding resistance per phase without skin effect [Ohm]

Return type:

float

comp_angle_d_axis(is_plot=False)

Compute the angle between the X axis and the first d+ axis By convention a “Tooth” is centered on the X axis :param self: A LamSlotWind object :type self: LamSlotWind :param is_plot: True to plot d axis position regarding unit mmf :type is_plot: bool

Returns:

d_angle – angle between the X axis and the first d+ axis

Return type:

float

comp_mmf_unit(Na=None, Nt=None, felec=1, current_dir=None, phase_dir=None)

Compute the winding unit magnetomotive force for given inputs

Parameters:

• self (LamSlotWind) – an LamSlotWind object

• Na (int) – Space discretization for offline computation

• Nt (int) – Time discretization for offline computation

• felec (float) – Stator current frequency to consider

• current_dir (int) – Stator current rotation direction +/-1

• phase_dir (int) – Stator winding phasor rotation direction +/-1

Returns:

• MMF_U (DataTime) – Unit magnetomotive force (Na,Nt)

• WF (DataTime) – Winding functions (qs,Na)

comp_mmf_dir(current_dir=None, phase_dir=None, is_plot=False)

Compute the rotation direction of the fundamental magnetomotive force induced by the winding

Parameters:

• self (LamSlotWind) – A LamSlotWind object

• current_dir (int) – Stator current rotation direction +/-1

• phase_dir (int) – Stator winding phasor rotation direction +/-1

• is_plot (bool) – True to plot fft2 of stator MMF

Returns:

mmf_dir – -1 or +1

Return type:

int

comp_lengths_winding()

Compute the lengths of the Lamination’s Winding. - Lwtot : total length of lamination winding incl. end-windings and radial ventilation ducts [m]. - Lwact : active length of lamination winding excl. end-windings and radial ventilation ducts [m]. - Lewt : total end-winding length [m]. - Lew : end-winding length on one side for a half-turn - Lwvent : length of lamination winding in the radial ventilation ducts [m] :param self: a LamSlotWind object :type self: LamSlotWind

Returns:

L_dict – Dictionary of the length (Lwtot, Lwact, Lew, Lwvent)

Return type:

dict

comp_number_phase_eq()

Compute the equivalent number of phase

Parameters:

self (LamSlotWind) – A LamSlotWind object

Returns:

qb – Number of winding phase

Return type:

float

comp_periodicity_spatial()

Compute the periodicity factor of the lamination

Parameters:

self (LamSlotWind) – A LamSlotWind object

Returns:

• per_a (int) – Number of spatial periodicities of the lamination over 2*pi

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

set_pole_pair_number(p)

Set the number of pair of pole of the Lamination

Parameters:

• self (LamSlotWind) – A LamSlotWind object

• p (int) – Number of pair of pole

save(save_path='', is_folder=False, type_handle_old=2, type_compression=0)

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 (json only)

• type_handle_old (int) – How to handle old file in folder mode (0:Nothing, 1:Delete, 2:Move to “Backup” folder)

• type_compression (int) – Available only for json, 0: no compression, 1: gzip

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

compare(other, name='self', ignore_list=None, is_add_value=False)

Compare two objects and return list of differences

as_dict(type_handle_ndarray=0, keep_function=False, **kwargs)

Convert this object in a json serializable dict (can be use in __init__). type_handle_ndarray: int

How to handle ndarray (0: tolist, 1: copy, 2: nothing)

keep_functionbool

True to keep the function object, else return str

Optional keyword input parameter is for internal use only and may prevent json serializability.

copy()

Creates a deepcopy of the object

property Ksfill

Imposed Slot Fill factor (if None, will be computed according to the winding and the slot)

Type:

float

Min:

0

Max:

1

property winding

Lamination’s Winding

Type:

Winding