Error Analysis on Digital Metering Devices of New Generation of Intelligent Substation

Digital metering devices is taking important place in new generation of intelligent substation, but the method to analysis their error is not fit to its new characteristics. Aiming to improve the accuracy of error analysis result, this paper analyzed the error source of digital metering devices, and attempted to acquire how much do these influences affects the metering accuracy of digital metering devices in new generation of intelligent substation, furthermore, this paper did analysis on network abnormal event to find the relationship between network communication and metering error, finally simulating experiments were done to confirm the validity and effectiveness of research result.