An On-site Detection Scheme of Power Quality Monitoring Device Considering Time Synchronization

With the increasing emphasis on power quality, more and more power quality monitoring devices are put into operation in the power grid. To ensure reliable and accurate operation, these devices need to be tested regularly, and it is better to use an efficient on-site detection scheme without wiring removal. In this paper, a high-precision detection scheme for the power quality monitoring device considering time difference is proposed. It enhances the detection accuracy by adding time synchronization based on IEEE 1588 and improving the design of hardware in the standard meter method. Moreover, this paper designs a detection software, which can realize full-automation on-site detection. According to the theoretical analysis, the proposed method is high precision and easy to operate, which is suitable for the actual on-site detection.