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Greenbyte Documentation

String DC Normalized Current

The String DC Normalized Current is the normalized version of the String DC Current, where the normalization is done by dividing the String DC Current by the rating (ampacity) of the string. These signals are found on the Combiner Boxes.

The signal is called String DC Normalized Current i where i is a number that corresponds to the respective string current. Normalizing the string currents by their rating enables comparison between the signals and the possibility to find underperforming strings. Along with Reference Current Normalized or Average Current Normalized alerts can be set up to automate the string monitoring.

The ratings used for the normalization of the strings currents can be provided as input or the rating can be automatically decided based on a year of historical data.

Technology

Solar

Remarks

In the current solution, the user-defined string capacities need to enter into specific tables in the database.

Equation
String_DC_Normalized_Current_-_Equation.png

Where:

IiDC,norm

is the String DC Normalized Current i, where i is the number of the string

IiDC

is the String DC Current i, which is the measured current from one string (or one sensor)

Cstring

is the string rating (ampacity) of the string, specified by the user. For more information, see Remarks.

Clearned

is the string rating (ampacity) of the string, which is found by looking at historical data.

Inputs
String_DC_Normalized_Current_-_Inputs.png
Usage Example

This section will be updated later.