Detection method of time-domain characteristics of sampled value signal based on AC analog-to-digital conversion response

Abstract

The present invention provides a time-domain characteristic detection method of sampling value signal based on AC analog-to-digital conversion response, which is based on the real-time response characteristics of AC analog signal and communication physical layer AC sampling value digital signal and its information, combined with time synchronization signal parameters, Detect the correctness and stability of the sample value signal response time of the second time-domain AC sampling of the AC analog-to-digital conversion device. According to the time synchronization signal input state of the AC analog-to-digital conversion equipment, the AC signal input and the communication physical layer AC sampling value digital signal and its information output, the invention adopts the parameters of the time synchronization signal and the time synchronization frequency signal, and calculates the AC analog-to-digital conversion equipment The time-domain response characteristics of the AC sampling value signal in the time-synchronous working mode and its switching to the time-out-synchronizing working mode can be used to evaluate the accuracy of the AC sampling time and the stability of the AC sampling frequency of the AC analog-to-digital conversion equipment, which meets the requirements of value transfer Principle, with physical display characteristics.

Description

technical field [0001] The invention relates to a detection method for electric equipment, in particular to a detection method for time-domain characteristics of a sampling value signal based on an AC analog-to-digital conversion response. Background technique [0002] This application is based on the "Real-time Response Detection Method of AC Analog-to-Digital Conversion Equipment Based on Physical Layer Sampling Values ​​DL2014 1 0144300.7" (hereinafter referred to as "Another Authorization 1") and "Time Synchronization Detection of Network Time Service IED Based on Physical Layer Time Information" Method DL2014 1 0203624.3" (hereinafter referred to as "another case authorization 2"), proposes a method for detecting the correctness and stability of the output response time of the sampled value signal output by AC sampling in the second time domain of an AC analog-to-digital conversion device. [0003] The AC measurement of smart substation (referred to as intelligent stati...

AI Technical Summary

Problems solved by technology

That is, the current relevant technical standards do not clarify the physical relationship between "time parameters, AC sampling behavior, sampling value messages and their communication photoelectric signals" (for example, the time base for evaluating message dispersion is not clear)

Images