The Mechanism Of Dynamic Voltage Regulator In Voltage Sag Control

When a voltage dip occurs in the power grid, dynamic voltage stabilizer immediately detects that the grid voltage is lower than a set threshold and injects or compensates for the required voltage according to the internal converter or inverter structure of the equipment, so that the load end maintains a state close to the rated voltage.

Definition and characteristics of voltage sag: According to the national standard GB/T30137-2013, a voltage sag is a phenomenon where the voltage RMS drops to 90%–10% of the rated value, lasting approximately 10 ms to 1 minute. Because this short-term phenomenon occurs rapidly, lasts for an extremely short time, and is difficult to measure, it places high demands on voltage quality control. In this situation, the dynamic voltage stabilizer for home, through its "fast switching," "energy storage injection," and "parallel isolation with the grid," plays a crucial role in addressing this phenomenon.