Communication system for cascade type power conversion device

Abstract

The present invention discloses a cascade type power conversion device and a communication system for the same. Each phase of the cascade type power conversion device comprises a plurality of power modules connected in series and a communication system. The communication system comprises a plurality of low voltage communication units and a plurality of optical fibers. The plurality of low voltage communication units are connected in series and disposed in the plurality of power modules, respectively. And the plurality of optical fibers are connected between the low voltage communication units and a master control system of the cascade type power conversion device.

Dependencies are inferred from the claim text.