Research on dynamic error of digital input electricity meters for energy internet

Under the background of energy internet, the dynamic characteristics of power grid are prominent. Aiming at the dynamic error problem of digital input electricity meters widely used in smart substations, a dynamic error test experiment was designed and conducted in this paper, and the causes of dynamic errors were analyzed. The results show that the digital input electricity meter has advantages in measurement accuracy compared with the analog electricity meter. The analysis process can effectively guide the relevant manufacturers to take corresponding measures to improve the metering performance of digital input electricity meters.