Communication system for power electronic converters

摘要

The present invention is concerned with a communication system for a power electronic converter with a plurality of converter modules comprising controllable power semiconductor switches and individually mountable onto a converter cabinet or frame. The communication system involves unguided transmission of optical signals between optical elements arranged on a converter module and on the converter cabinet, respectively. The proposed free-space optical signal transmission between two distinct parts of the converter combines advantages in terms of flexibility offered by radio transmission and advantages of optical communication in terms of data rate and reliability, while at the same time avoiding the complex and expensive cabling of optical fiber solutions.