Summary

NTGridDQ Speed-torque grid from d-q grid data.

Initialization:

grid = NTGridDQ(raw_grid, key, val) with any of the following:

• ‘U_DC’ : DC-link voltage. Default [] –> determine from base point.

• ‘turns_ratio’ : multiplier to adjust the motor turn count with.

• ‘base_speed’ : Base speed, see below.

• ‘base_torque’ : Base torque. Not used if U_DC is given. If not, then U_DC = terminal voltage at base point.

• ‘speed_range’ : speed range to initialize the grid for.

  PROPERTIES

• U_DC - DC bus voltage. Changing this recomputes this.interpolant

• base_speed - Base speed

• base_torque - Base torque

• NTGridDQ/grid is a property.

• NTGridDQ/interpolant is a property.

• NTGridDQ/speed_range is a property.

• turns_ratio - Multiplier for motor turns. Changing this recomputes this.interpolant.

Methods

Class methods are listed below. Inherited methods are not included.

* parsing defaults

* NTGridDQ/get_efficiency_grid is a function.

[etagrid, torque_grid, speed_grid, electrical_power] = get_efficiency_grid(this, varargin)

* NTGridDQ/get_grid is a function.

[Qint, torque_grid, speed_grid] = get_grid(this, q_name, varargin)

* NTGridDQ/get_op is a function.

[eta, I, Pcu, Physt, Peddy] = get_op(this, n, T, varargin)

* get_speed_and_torque_grid Meshgrids for calculation.

* init_listeners Add property listeners.

* NTGridDQ/plot_map is a function.

Qint = plot_map(this, contour_name, varargin)

* setting up grids

* setup Initialization function

* save_efficiency_grid Save efficiency data.

save_efficiency_grid(this, filename)

save_efficiency_grid(this, filename, key, val) with

• ‘format’, ‘grid’/’columns’ : Output format. Only ‘columns’ supported right now.

• ‘sheet’, sheet_name : Sheet to save into.

• ‘range’, rng : Sheet range to save into. Default ‘A1’.