Existing problems:
Large harmonics in the system caused by a great quantity of inverters;
The voltage fluctuation caused by the change of the power generation;
The alternation of day and night caused the change of reactive power demand, capacitive to inductive.
Solution:
ZRSVG-240/0.38 step-up active reactive power generating device of SSE was applied.
Control effect:
The continuous compensation from the inductive to capacitive was made to the system and automatic reactive power output can be made according to the voltage fluctuation, and meanwhile, the harmonic current was effectively inhibited.