8. Performance analysis space

The performance analysis space is the place where the design performance can be evaluated. Typically, the loss map of an inverter is generated in this space. However, this space is not limited to loss maps. Any performance parameter can be evaluated in many operating points. For all topologies (except for Single phase DC/AC), the performance analysis space of any design can be found by clicking the “Performance analysis” button in the design dashboard. Here, there are two primary tabs available: Generate and Map results.

8.1. Generate space

In this first space, the contents and size of the desired converter maps can be configured, based on the specified values for the input parameters, and the selected output parameters. In the Generate space, there are 2 secondary tabs available: Inputs and Outputs.

8.1.1. Inputs

The performance analysis inputs can be thought of as the coordinates of the output maps that are generated. For every topology, the inputs can be different, but they are always categorized in two sections: Operating Point and Cooling, and in all cases, every input parameter must have at least one value.

For the Operating point section, the model variant is selected, and the operating point configuration is filled in with an array of values for every input parameter. The number of input values of each parameter determines the number of combinations.

For the Cooling section, based on the selected model variant, the cooling configuration is set to one of the 4 following options:

1. T_{cold source} imposed

2. T_sink imposed

3. T_case imposed

4. T_junction imposed

For all of the above options, the imposed temperature cell can be filled with an array of multiple temperatures.

Warning

If the design was created with no cooling selected, then the Cold source temperature imposed variant cannot be used, since the thermal resistance between the sink and the cold source R_th(s-cs) does not exist.

8.1.2. Outputs

The output parameters are numerical fields considered as “performance” indicators. The list of selected output fields is summarized in Selected outputs (N: Number of selected outputs), and it is different depending on the topology of the design. These outputs include system-level parameters like power loss and efficiency, as well as many other detailed parameters regarding the operating point configuration, the switching controller, the cooling, the filter, etc.

When the inputs and outputs are selected, the map evaluation can be launched with the top left button. For every one of the selected output parameters, a separate map is generated, based on the input variables.

8.2. Map result space

8.2.1. Results visualization

In this space, the generated maps from the performance analysis are presented, in up to 3 different plots. Each plot can be displayed in 3 different ways: a surface plot, a 3D scatter plot, and a contour plot. The x & y axis as well as the displayed dataset can be changed by clicking on the dropdown menus.

The top button is to export the map to GT-suite. It only works if the “Loss” parameter is selected in the output sections.

The loss maps that are generated can be exported in a .pfloss format, by clicking the buttons on the top of the page. This only works if the P_loss output parameter is selected. Depending on the converter topology, there are different available options for the loss map exports.

For DC/DC converters, the available exports are:

For 3-phase DC/AC inverters with ideal sources the available exports are:

, while for 3-phase DC/AC inverters with electrical machine with control, there is an additional available export:

8.2.2. Results export

If the “System-level > P_loss” output is selected, the design’s loss map, can be exported in a .pfloss file, by clicking the buttons on top of the Map results tab (see image above).

These files are designed to be used in GT-ISE.

Depending on the converter topology and model variant, there are different available options for the loss map exports. The following table resumes the loss map compatibility with
GT-ISE ( ✓ = compatible, ✗ = not compatible).

GT-ISE Templates	Isolated & Non-isolated DC/DC	3-phase DC/AC Ideal Sources	3-phase DC/AC with Machine
DCConverterPowerForge	✓	✗	✗
InverterPowerForge	✗	✓	✓
MotorGeneratorMap	✗	✗	✓

For more information, see the following section.

It’s also possible to export the full performance map generated (all outputs selected) into a .csv file attached to the user’s email: