SVG is a Static Var Generator, and DLT-SVG represents the application of technology in the field of reactive power compensation. SVG is connected in parallel to the power grid, functioning as a variable reactive current source. By adjusting the magnitude and phase of the output voltage on the AC side of the inverter, or directly controlling the magnitude and phase of the AC side current, it rapidly absorbs or delivers the required reactive power to achieve fast dynamic regulation of reactive power. When direct current control is employed, DLT-SVG directly controls the AC side current, not only compensating for the inrush current of impact loads but also providing compensation for harmonic currents.