pyleecan.Classes.EEC module

Method code available at https://github.com/Eomys/pyleecan/tree/master/pyleecan/Methods/Simulation/EEC

class EEC(type_skin_effect=1, OP=None, Tsta=20, Trot=20, Xkr_skinS=1, Xke_skinS=1, Xkr_skinR=1, Xke_skinR=1, R1=None, fluxlink=None, init_dict=None, init_str=None)[source]

Bases: FrozenClass

Equivalent Electrical Circuit abstract class

VERSION = 1
get_machine_from_parent()

Get machine object from parent

Parameters:

self (EEC) – an EEC object

Returns:

machine – a Machine object

Return type:

Machine

comp_R1(R1_ref=None, T_ref=None)

Compute the stator phase resistance for the equivalent electrical circuit

Parameters:

  • self (EEC) – an EEC object

  • R1_ref (float) – reference resistance

  • T_ref (float) – reference temperature

comp_skin_effect()

Compute the skin effect factors (update value in object)

Parameters:

self (EEC) – An EEC objects

comp_parameters()

Compute and set the parameter attributes of the EEC that are not set.

Parameters:

self (EEC) – an EEC object

update_from_ref(LUT_ref)

Compute and set the parameter attributes of the EEC from a reference LUT

Parameters:

  • self (EEC) – an EEC object

  • LUT_ref (LUTdq) – a LUTdq object

solve()

Compute the parameters dict for the equivalent electrical circuit

Parameters:

self (EEC) – an EEC object

Returns:

out_dict – Dict containing all magnetic quantities that have been calculated in EEC

Return type:

dict

solve_PWM(output)

Get stator current harmonics due to PWM harmonics

Parameters:

  • self (EEC) – an EEC object

  • output (Output) – An Output object

  • is_dqh_freq (bool) – True to consider frequencies in dqh frame

Returns:

Is_PWM – Stator current harmonics as DataFreq

Return type:

DataFreq

comp_joule_losses(out_dict, machine)

Compute the electrical Joule losses

Parameters:

  • self (EEC) – an EEC object

  • out_dict (dict) – Dict containing all magnetic quantities that have been calculated in comp_parameters of EEC

  • machine (Machine) – a Machine object

Returns:

out_dict – Dict containing all magnetic quantities that have been calculated in EEC

Return type:

dict

comp_fluxlinkage(machine=None, OP=None, Nt_tot=None)

Compute flux linkage using magnetic model in self.fluxlink

Parameters:

  • self (EEC) – an EEC object

  • machine (Machine) – a Machine object

  • OP (OP) – an OP object

  • Nt_tot – Number of time steps for magnetic calculation

Returns:

  • Phi_dqh_mean (ndarray) – Flux linkage in dqh frame

  • Phi_wind (DataND) – Stator flux linkage Data object

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)[source]

Compare two objects and return list of differences

as_dict(type_handle_ndarray=0, keep_function=False, **kwargs)[source]

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()[source]

Creates a deepcopy of the object

property type_skin_effect

Skin effect for resistance and inductance

Type:

int

property OP

Operating Point

Type:

OP

property Tsta

Average stator temperature for operational EEC calculation

Type:

float

property Trot

Average rotor temperature for operational EEC calculation

Type:

float

property Xkr_skinS

Skin effect coefficient for resistances at stator side

Type:

float

property Xke_skinS

Skin effect coefficient for inductances at stator side

Type:

float

property Xkr_skinR

Skin effect coefficient for resistances at rotor side

Type:

float

property Xke_skinR

Skin effect coefficient for inductances at rotor side

Type:

float

property R1

Stator phase resistance

Type:

float

Magnetic model for flux linkage calculation

Type:

Magnetics