Solmetric PVA-600, Руководство пользователя

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4 Using the PVA-600 Software
4-11
Table 11. Traces tab description
Name Description
Current (A)
Displays the current scale along the vertical axis on the left side
of the graph.
Voltage (V)
Displays the voltage scale along the horizontal axis of the graph.
Power (W)
Displays the power scale along the vertical axis on the right side
of the graph.
Save Trace
button Saves all of the I-V and P-V graph data points and other
descriptive information in a csv file in the
Traces folder.
Save a Screen Image ...
Click on the camera icon at the lower right corner of any screen
to save the screen.
Verify Tab
The Verify tab is a display of predicted and measured maximum power for a quick check
of the system. The height of the gray bar is the maximum power actually measured for
the system. This value corresponds to the single yellow point on the P-V curve. The black
target line is the maximum power predicted by the performance model. The numeric
Performance Factor value is the ratio of actual to predicted maximum power, as a
percentage.
NOTE Typically, if a string is operating correctly, the Performance Factor will be between 95%
and 105% when using the Sandia model. The range will typically be higher when using
the 5 Parameter and Simple Performance models. The industry has relatively little
experience using the 5 Parameter model with thin film modules; the range for TF
modules is likely to be still higher.
The dotted STC line is the predicted power under Standard Test Conditions. Figure 13 is
an example of the Verify tab screen.
NOTE STC conditions (typically found on module datasheets) occur infrequently in real world
measurements as they combine bright sun with low temperatures.