Error in current interference meter? Research and test the accuracy of power consumption of smart meters

[ Instrument R & D of Instrument Network ] With the development of society in recent years, the national system has become more and more perfect. With the improvement of residents' living standards, more and more residents like to use some high-power household appliances. This also caused a rise in electricity costs. For some electric meters, the old-fashioned electric meter used before may not work, so it is necessary to replace the electric meter with a larger capacity.

In addition, the transient interference of voltage and current is the main cause of damage to electronic circuits and equipment, often causing inestimable losses to people. These interferences usually come from the start-stop operation of power equipment, the instability of the AC power grid, lightning interference and electrostatic discharge, etc. The transient interference is almost everywhere and from time to time, which makes people feel unpredictable. Sometimes it will make the smart meter inaccurate.

So, what is a smart meter? Smart meters are smart terminals for smart grids. In addition to the basic electricity metering functions of traditional energy meters, in order to adapt to the use of smart grids and new energy sources, they also have two-way multi-rate metering functions, user-side control functions, and multiple Intelligent functions such as two-way data communication function and anti-theft function in data transmission mode, smart meters represent the future development direction of smart terminals for energy-saving smart grid end users in the future.

It is understood that in order to solve the problem of errors in the meter under fast transient current-related electrical interference. The European Metrology Innovation and Research Program (EMPIR) launched the "Electrostatic Interference from Electrostatic Meters" project, which is dedicated to developing methods to test the accuracy of electricity consumption of smart meters.

Through high-precision measurement of actual electrical interference, the project team built a new test bench to evaluate the performance of the meter under similar conditions. In order to resolve billing disputes, we will determine how to design anti-interference meters based on on-site inspections, and develop new diagnostic algorithms to identify transient current types. The researchers hope that the results of the project will eventually support European and international standards and ensure consumer confidence in the use of smart meters.