Flicker precision detection method for digital electric energy quality monitoring terminal and system thereof

Abstract

The invention provides a flicker precision detection method for a digital electric energy quality monitoring terminal and a system thereof. The method comprises the steps that standard signals meeting the IEC61850-9-2 requirement are transmitted to the digital electric energy quality monitoring terminal; sampling is performed on the standard signals by the digital electric energy quality monitoring terminal and an MMS message is outputted; minute data of a short-term flicker index are confirmed according to the MMS message; and a short-term flicker measured value of the digital electric energy quality monitoring terminal is confirmed according to the minute data of the short-term flicker index. The IEC standard, detection precision and dynamic flicker detection capacity of the digital electric energy quality monitoring terminal can be identified, and flicker test capability of the electric energy quality terminal used for a digital transformer substation can be conveniently and rapidly assessed.

Description

technical field [0001] The present invention relates to the detection technology of monitoring equipment in the safe operation of the power system, in particular to the detection technology of the power quality monitoring terminal used in substations in the safe operation of the power system, specifically a digital power quality monitoring terminal flicker Accuracy detection method and system. Background technique [0002] In recent years, the demand for digital digital power quality monitoring terminals in various provinces across the country has been increasing day by day. However, due to the different levels of manufacturers of digital digital power quality monitoring terminals, the digital digital power quality monitoring terminals produced may have flicker detection algorithms. According to the national standard or the test accuracy is not enough. [0003] In the prior art, the detection of the flicker accuracy of the digitized digital power quality monitoring terminal...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem that the detection data of the power grid terminal cannot be truly reflected due to the manual detection of the flicker accuracy of the digital power quality monitoring terminal one by one in the prior art, the present invention provides a method for detecting the flicker accuracy of the digital power quality monitoring terminal And the system can identify whether the digital power quality monitoring terminal is in accordance with the IEC standard, detection accuracy and dynamic flicker detection capability, and can conveniently and quickly evaluate the flicker test capability of the power quality terminal for digital substations

Images