电子互感器采集器与合并单元通信新规约

A New Communication Coding between Collector and Merging Unit of Electronic Voltage Transformer

数字化变电站中采集器与合并单元之间通信遵循IEC60044-7/8标准,分析IEC60044-7/8中采用的曼彻斯特传输码与CRC校验码。分别对当前光纤通信中使用最广泛的4B5B码与FT3帧格式中使用的曼彻斯特码、BCH纠错码与FT3帧格式中的CRC校验码进行对比,提出使用4B5B码代替曼彻斯特码、BCH码代替CRC校验码的新的传输方案,并对新方案进行仿真从而证明新方案的优越性。

The communication between Collector and Merging Unit of digital substation follows the IEC60044-7/8. Analysis the Man- chester transmission code and CRC checksum used in IEC60044-7/8. Compare the 4BSB coding widely used in current optical fiber with the Manchester coding used in FT3 agreement and the BCH error-correcting code with the CRC check code used in FT3 agreement, then come up with a scheme that using 4BSB coding instead of Manchester coding, BCH coding instead of CRC coding. The result of the simulation proves that this new plan is better.