Journal Article

Analysis of the effect of active power threshold on dynamic metering of energy meters

Li, Helong, Zhang, Xinhui, Lu, Da, Wang, Chunyan

2024

Overview

With the high proportion of new energy and power electronic equipment access in the construction of new power systems, the dynamic volatility of the grid signal is stronger, which poses a serious challenge to accurate metering. To address this problem, this paper starts with the analysis of the electric energy metering algorithm principle. Firstly, the measurement characteristics of the Moving average algorithm and the Non-overlapping algorithm are compared. Secondly, on the basis of studying the steady-state signal metrology power metering error of the two algorithms when there is an active power threshold, the metrology ability of the two algorithms to dynamic signal is further analyzed. The conclusion is drawn that the threshold will cause the metrology power metering error of the moving average algorithm. The non-overlapping algorithm has a certain probability of power metering error. Finally, by designing different input signals, the moving average and non-overlapping algorithms are tested, respectively, to verify the effectiveness of the analysis. The research results of this paper can provide ideas for the research and analysis of dynamic metering algorithms of energy meters.

• Publisher: IOP Publishing
• Subject: Algorithms / Electronic equipment / Error analysis / Measurement / Measuring instruments / Metering / Metrology