AS800 series high-voltage inverter is a high-high voltage source-type high-voltage inverter designed and manufactured by Shanghai Singliner STEP Motor Co., Ltd., which integrates international cutting-edge power electronics technology and vector control technology. The input harmonic current on the grid side is eliminated, and the voltage superposition is realized by cascading multi-stage H-bridge power units to obtain a nearly perfect high-voltage sine wave output, which can directly drive a high-voltage motor without installing any filter.