Research On Primary Converter Of Optical Voltage Transformer

Electronic transformer in China after more than ten years of development and application, and has set up a file in the more than300power plant for test operation or formal operation instances. Domestic engaged in electronic transformer technology research and development unit has increased to more than30, in part or whole series of supply manufacturers already close to ten. At present, electronic transformer in addition to need to overcome some application level new technical barriers, unified various interface standard, has become a top priority.This paper first summarizes electronic transformer interface standardized research background and significance, this paper analyzes the present situation of the research are not standardized, made clear the research content of this paper. In optical voltage transformer of the sensing principle, design the corresponding signal conditioning circuit, and according to the merge cells technical conditions "(SongShenGao) in electronic transformer and merge cells interface standard requirements, designed and implemented in accordance with the standard communication protocol between the data transfer scheme. Data communication hardware circuit mainly includes master control chip EP3C5E144and single chip microcomputer AD7606, because AD7606for eight channel16bit parallel AD, so this scheme can achieve the highest eight channel data acquisition and data communication.Finally, the system of the signal processing circuit to test and analysis, and the data communication parts of the simulation and verification.