T - N

Positioning and objective

The aim of the test “Working point – Sine wave – Motor – T, N” is to characterize the behavior of the machine when operating at the working point which is targeted by the user. It corresponds to the base point at a targeted useful torque and speed.

The working point torque-speed is defined by considering the targeted input values T, N (useful torque, speed).

This test allows defining the required line-line voltage and line current to reach the targeted useful torque and speed for the considered command mode (MTPV, MTPA or maximum efficiency).

Figure 1. Working point – Sine wave – Motor – T,N - Illustration

The results of this test give an overview of the electromagnetic analysis of the motor considering the machine topology.

The general data of the machine, like machine constants, power balance and magnet behavior are computed and displayed.

The magnetic flux density is also computed in every region of the machine magnetic circuit to evaluate the design.

Note: In FluxMotor terminology, the constant torque last working point of the torque-speed curve is called “Base speed point”, only if it is obtained for the maximum allowed line-line voltage and maximum line current. If it is not the case, we called as “Corner speed point”.

The following table helps to classify the test “Working point – Sine wave – Motor – T, N”.

Table 1. Positioning of the test “Working point – Sine wave – Motor – T, N”
Family	Working point
Package	Sine wave
Convention	Motor
Test	T, N

Inputs

For more details, please refer to Inputs.

Thermal

For more details, please refer to Thermal.

Electronics

For more details, please refer to Electronics.

Mechanics

For more details, please refer to Mechanics.