Active/Reactive Power Control And Low Voltage Ride; Through (Option); Active Power Control; Power Limit - Delta RPI-H3 Owner's Manual

6. Active/Reactive Power Control and
Low Voltage Ride Through (Optional)
There are 2 settings for active power and 4 settings for reactive power control
based on the requirement from network operator.

6.1 Active Power Control

6.1.1 Power Limit

Users can reduce inverter output power by set percentage of actual or rated
power.

6.1.2 Power vs. Frequency

According to VDE-AR-N 4105 (5.7.3.3)：
At frequencies between 50.2Hz and 51.5Hz, all adjustable power generation
systems shall reduce (for frequency increase) or increase (for frequency
decrease) the active power Pm generated instantaneously (at the time of
exceeding the mains frequency 50.2Hz; freezing the value on the current level)
with a gradient of 40% of Pm per Hertz).
According to CEI 0-21 (8.5.3.2)：
Within a frequency range from 50.3Hz to 51.5Hz, all adjustable production
plants equipped with static converters have to be able to reduce the currently
generated active power in case of an increase of the frequency with a variable
droop of 2% to 5% with a default value of 2.4% (with corresponds to a power
gradient of 83.3%/Hz).
User can set all necessary settings to meet the requirements from network
operator. Please refer to actual Power vs. Frequency for the settings
procedure.
20