US 12,416,698 B2
Method of adjusting an electricity meter
Henri Teboulle, Rueil Malmaison (FR); Christophe Grincourt, Rueil Malmaison (FR); and Sébastien Noiret, Rueil Malmaison (FR)
Assigned to SAGEMCOM ENERGY & TELECOM SAS, Rueil Malmaison (FR)
Filed by SAGEMCOM ENERGY & TELECOM SAS, Rueil Malmaison (FR)
Filed on Jan. 27, 2023, as Appl. No. 18/102,360.
Claims priority of application No. 2200719 (FR), filed on Jan. 27, 2022.
Prior Publication US 2023/0236275 A1, Jul. 27, 2023
Int. Cl. G01R 23/02 (2006.01); G01R 22/10 (2006.01); G01R 35/00 (2006.01)
CPC G01R 35/005 (2013.01) [G01R 22/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An adjustment method for adjusting a measurement module of an electricity meter connected to a distribution grid, the method comprising the following steps that are implemented in the electricity meter following installation of the electricity meter in an operating position:
acquiring at least one measurement of the frequency of the distribution grid;
if the difference between the frequency of the distribution grid and a first frequency is less that a first predetermined threshold, adjusting the measurement module by using first calibration parameters that were produced and stored in the electricity meter during a calibration stage performed prior to installing the meter in the operating position;
if the difference between the frequency of the distribution grid and the first frequency is greater than or equal to the first predetermined threshold, calculating second calibration parameters from the first calibration parameters and from adaptation parameters, and adjusting the measurement module by using the second calibration parameters, the adaptation parameters comprising first adaptation parameters evaluated at the first frequency and second adaptation parameters evaluated at a second frequency, the second frequency being such that the difference between the frequency of the distribution grid and the second frequency is less that a second predetermined threshold.