Winding (class)

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

class Winding(is_reverse_wind=False, Nslot_shift_wind=0, qs=3, Ntcoil=7, Npcpp=2, type_connection=0, p=3, Lewout=0.015, conductor=-1, init_dict=None, init_str=None)

Bases: pyleecan.Classes._frozen.FrozenClass

Winding abstract class

VERSION = 1

NAME = 'Abstract Winding'

comp_Ncspc(Zs=None)

Compute the number of coils in series per parallel circuit

Parameters

• self (Winding) – A Winding object

• Zs (int) – number of slot

Returns

Ncspc – Number of coils in series per parallel circuit

Return type

float

comp_Ntspc(Zs=None)

Compute the number of turns in series per phase

Parameters

• self (Winding) – A Winding object

• Zs (int) – Number of slot

Returns

Ntspc – Number of turns in series per phase

Return type

float

comp_phasor_angle(Zs=None)

Compute the phasor angle of the winding phases related to the first slot

Parameters

• self (Winding) – A: Winding object

• Zs (int) – Number of Slot (Integer >0)

Returns

angle_vec – Phasor Angle Vector (qs)

Return type

numpy.ndarray

comp_winding_factor(Harmonics=[1])

Compute the winding factor of phase 1 (asuming symmetry)

Parameters

• self (Winding) – A: Winding object

• Harmonics (list of floats) – list of harmonics to calculate the winding factor

Returns

xi – winding factor

Return type

numpy.ndarray

comp_length_endwinding()

Compute the Winding overhang length on one side for a half-turn[m]

Parameters

self (Winding) – A Winding object

Returns

Lewout – End-winding length on one side for a half-turn [m].

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(**kwargs)

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

compare(other, name='self')

Compare two objects and return list of differences

as_dict(**kwargs)

Convert this object in a json serializable dict (can be use in __init__). Optional keyword input parameter is for internal use only and may prevent json serializability.

property is_reverse_wind

1 to reverse the default winding algorithm along the airgap (c, b, a instead of a, b, c along the trigonometric direction)

Type

bool

property Nslot_shift_wind

0 not to change the stator winding connection matrix built by pyleecan number of slots to shift the coils obtained with pyleecan winding algorithm (a, b, c becomes b, c, a with Nslot_shift_wind1=1)

Type

int

property qs

number of phases

Type

int

Min

0

Max

100

property Ntcoil

number of turns per coil

Type

int

Min

1

Max

1000

property Npcpp

number of parallel circuits per phase (maximum 2p)

Type

int

Min

1

Max

1000

property type_connection

0 star (Y), 1 triangle (delta)

Type

int

Min

0

Max

1

Type

Winding connection

property p

pole pairs number

Type

int

Min

1

Max

100

property Lewout

straight length of the conductors outside the lamination before the curved part of winding overhang [m] - can be negative to tune the average turn length

Type

float

Min

0

Max

100

property conductor

Winding’s conductor

Type

Conductor