SVG (Static Var Generator) is a high-performance reactive power compensation device based on power electronics technology, which dynamically adjusts the reactive power output through a voltage source inverter to achieve synchronous reactive power compensation with the power grid. Its core components include a self commutation bridge circuit composed of switchable semiconductor devices such as IGBTs, which are connected in parallel to the power grid through reactors. The DC side is stored in capacitors, and reactive power control is achieved by adjusting the output voltage.
working principle
SVG detects the system current in real-time through external CT, controls the chip to analyze parameters such as power factor, apparent power, and reactive power, generates compensation signals to drive the inverter to output a current opposite to the system reactive power, and achieves instantaneous balance
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