Efficiency map - Scalar(U-f)

Positioning and objective

The aim of the test “Performance mapping – Sine wave – Motor – Efficiency map scalar U-f” is to characterize the behavior of the machine in the "Torque-Speed" area.

Input parameters like, “the maximum Line-Line voltage, the rated power supply frequency, the maximum line current and the maximum speed” of the machine are considered.

One type of command mode is available: scalar command.

Input parameters define the torque-speed area in which the evaluation of the machine behavior is performed.

Figure 1. Characterization of the corner point on the torque-speed curve

In the results, the performance of the machine at the base point (base speed point) and at the maximum speed (maximum speed point), set by the user are presented.

A set of curves (like Torque-Speed curve) and maps (like Efficiency map) are computed and displayed.

Note: Additional graphs provide an interesting overview on some topics such as, “Normalized base point curves”, “Normalized torque-speed curves” and “Voltage boost at low speed”. These results help the user to understand the possible performance of the machine in its electric environment.

The following table helps in classifying the test “Performance mapping – Sine wave – Motor – Efficiency map scalar U-f”.

Table 1. Positioning of the test “Performance mapping - Sine wave - Motor - Efficiency map scalar U-f”
Family	Performance mapping
Package	Sine wave
Convention	Motor
Test	Efficiency map scalar U-f

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.