Efficiency map - Scalar(U-I)

Positioning and objective

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

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

The main difference with the test “Performance mapping – Sine wave – Motor – Efficiency map scalar U-f” is that the speed of the base speed point is not fix by a user input (Rated power supply frequency) but deduced by the internal process of computation to maximize mechanical power.

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 the maximum speed (maximum speed point), set by the user are presented.

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

Note: Curves are calculated and displayed identical to those presented in the test “Performance mapping – Sine wave – Motor – Efficiency map scalar U-f”.

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

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

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.