Overview

Aggregation is used to provide stable and standardized measurements over time.

Data aggregation is performed according to IEC 61000-4-30 standard.

The system aggregates measured parameters over multiple predefined time intervals, including:

  • 150/180 cycle intervals
  • 10-minute intervals
  • 2-hour intervals

Aggregation Method

  • Aggregation is performed using the root of the arithmetic mean of squared values (RMS-based aggregation)
  • Minimum and maximum values are also calculated within each aggregation interval.

Aggregation Time Intervals:

  1. 150/180 Cycle Interval
    • The 150/180-cycle interval  is derived from 15 consecutive 10/12-cycle intervals


  1. 10-Minute Interval
    • The 10-minute aggregation is calculated from multiple 10/12-cycle intervals
    • Aggregation is synchronized with the UTC 10-minute time tick.
    • When the UTC tick occurs:
      • The current aggregation interval is completed.
      • A new aggregation interval starts.


  1. Two-Hour Interval
  • The two-hour aggregation is calculated from twelve 10-minute intervals.


Minimum and Maximum Values

  • All parameters include:
    • Minimum value
    • Maximum value
  • These values are calculated within each aggregation interval

Exception:

Some parameters (such as energy) may follow different aggregation rules


Special Aggregation Cases

  • Certain parameters use specific aggregation methods as defined by the standard.
  • Flicker measurements follow a dedicated aggregation method according to IEC 61000-4-15.

Created with the Personal Edition of HelpNDoc: Full-featured EBook editor