Working point I - U

Positioning and objective

The aim of the test “Characterization - Datasheet – Motor – I, U” is to characterize the behavior of the machine when operating at the working point that is located at the base speed point.

The working point or base speed point of the torque-speed curve is defined by considering the maximum allowed line-line voltage and the maximum allowed line current.

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

Figure 1. Characterization of the base speed point on the torque speed curve

This test gives an overview of the electromagnetic analysis of the motor considering the machine topology, the maximum allowed supplied line-line voltage and line current.

For this working point, 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 part of the machine to evaluate the design.

The test results also include all the necessary constants to build the equivalent model of the machine and to simulate the behavior of the machine in its electrical environment. In the results, a set of inductances is computed (unsaturated and at the base speed point).

The ripple torque at the base speed point is computed.

An overview of the machine performance at no-load is also given in this test.

The following table helps to classify the test “Characterization – Datasheet – Motor – I, U”.

Table 1. Positioning of the test “Characterization – Datasheet – Motor – I, U”
Family	Characterization
Package	Datasheet
Convention	Motor
Test	I, U

Subsections

Inputs

For more details, please refer to Inputs.

Thermal

For more details, please refer to Thermal.

Electronics

For more details, please refer to Thermal.

Mechanics

For more details, please refer to Mechanics.