FHVFD1000 series medium-voltage drive is a medium-voltage source type drive designed and manufactured by FMZ that integrates international cutting-edge power electronics technology and vector control technology. It greatly suppresses the network voltage through the phase-shifting rectifier transformer. Harmonic current is input to the side, and voltage superposition is achieved through the cascading of multi-stage H-bridge power units to obtain an almost perfect medium-voltage sine wave output, which can directly drive the medium-voltage motor without adding any filter.