SOLARDRIVE
PLUS
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2.6.11.
Solardrive
– MPPT Parameters Menu
NOTE
This section is applicable to software versions starting from 4.050.
2.6.11.1. Overview
This menu contains the parameters to configure the MPPT algorithm.
Parameters
P810
and
P811
set the operating range of the Maximum Power Point Tracking (MPPT)
algorithm. Parameter
P812
defines when the Maximum Power Point Tracking (MPPT). This control algorithm
acts on the motor speed in order to keep DC voltage at this value. The MPPT control algorithm is given in
Figure 11.
Figure 11: Voltage control algorithm
If the power made available from the PV field is equal to or lower than the power required to drive the motor
at its nominal frequency, the algorithm will reduce frequency to exploit the maximum available power.
Otherwise, if the available power exceeds the power required to drive the motor at its nominal frequency, the
motor will controlled at this frequency and DC voltage will not be adjusted. Figure 12 shows how the working
point varies based on the available power.