Research on Calibration System for Electronic Transformer in Alpine region

摘要

The calibration of electronic transfer's digital out is significant part for the reliable operation of intelligent substation. According to the particular condition in alpine region, a calibration system and a message-analysis sub software which base on IEC61850-9-2 is developed. In order to improve the accuracy and stability of the calibrator, the Hilbert transform, quasi-synchronization and other hardware improvements are introduced for the using environment, which effectively decreases the measurement error caused by non-synchronous sampling and temperature.