Statistical Flicker Level Analyzer
执行统计分析的瞬时flicker level signal
Description
TheStatistical Flicker Level Analyzerapp computes the short-term flicker severity (Pst) and long-term flicker severity (Plt) and displays the cumulative probability function (CPF) of an instantaneous flicker level signal (S5 signal).
You must have a Control System Toolbox™ license to use theStatistical Flicker Level Analyzer应用程序。
Open the Statistical Flicker Level Analyzer App
MATLAB®command prompt: Enter
power_flicker
Digital Flickermeterblock: ClickOpen statistical analysis
Parameters
Short-term interval (Tst)
— Short-term interval value
IEC Standard = 600 s (default) | Custom value (s)
When you selectIEC standard = 600 s, the short-term interval observation period is 10 minutes (600 seconds). This setting corresponds to the time specified in the IEC 61000-4-15 standard.
SelectCustom value (s)to specify the short-term interval observation period, in seconds. The default value is 300.
N
— Number of short-term intervals
1 (default) | positive integer
Number of short-term intervals used to measure the long-term flicker severity (Plt).
Start time (s)
— Analysis start time
0 (default) | positive scalar
Time of the beginning of the observed period, in seconds.
Number of classes
— Number of classes
256 (default) | positive integer
Number of classes that are used by the tool to compute the cumulative probability function of the instantaneous flicker level.
Load
— Load S5 signal
button
Load the S5 signal into the app. Choose betweenFrom WorkspaceandFrom file.
Help
— Open documentation
button
Open the documentation page.
Compute
— Compute cumulative probability function and flicker levels
button
Compute the percentiles P0.1s, P1s, P3s, P10s, and P50s, which are the flicker levels exceeded for 0.1%, 1%, 3%, 10%, and 50% of the time during the observed period. Computes the short-term flicker severity (Pst) and long-term flicker severity (Plt) and displays the cumulative probability function (CPF) of the S5 signal.