Description Of The Immunity Of Dynamic Voltage Regulators During Voltage Sags

During voltage sags, dynamic voltage stabilizer is unaffected by grid voltage fluctuations. This is because dynamic voltage stabilizer for home samples the grid waveform in real-time through a voltage detection loop, calculates the required series injection voltage, and the voltage source inverter injects it within milliseconds. The series transformer compensates and connects to the load side, so the load side senses the compensated voltage waveform, not the original grid fluctuation.

The internal controller uses DSP/FPGA to implement closed-loop regulation and works with an energy storage device to supply sudden energy gaps, thereby continuously maintaining the waveform integrity of the load voltage during sags.