Sungrow SG3425UD-MV, Системное руководство

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figure 10-4 MPPT
10.9 Intelligent Temperature-Control Technology
MV Station will continuously detect the IGBT temperature and adjust the fan speed
accordingly. When the module temperature is low, MV Station will decrease the fan speed to
lower the device noise and decrease the device operation consumption. As the module
temperature increases, the MV Station will increase the fan speed for better heat dissipation.
The intelligent temperature-control technology can synchronize the speed of fan and
temperature of the IGBT module and thus optimize the module temperature and other
conditions.
10.10 Anti-PID Effect Function (Optional)
10.10.1 Introduction to PID Effect
Potential Induced Degradation (PID) of the solar module is a performance degradation
caused by high negative voltage. The PID effect can occur with all crystalline silicon solar
cells that are embedded in glass-foil modules, leakage currents can result under
unfavorable conditions (accelerated by high humidity and temperature) where the module
joins with the frame and causes short-circuits that lower the overall performance of the
system.
This MV Station is equipped with optional anti-PID function to effectively prevent the PID.
10.10.2 Anti-PID Function Setting
For MV Station with optional anti-PID function, the enable and disable of this
function can only be performed by personnel from Sungrow. Contact Sungrow if
you need to switch this function.
10 Main Functions System Manual