Electric energy meter and electricity consumption information acquisition terminal online calibration method

• Main Authors: JIA BIN, SUN HAOJIE, ZHANG FUQIANG, JIANG KEXIAN, YANG JIQIAN, PAN CHEN, LIN MING
• Format: Patent
• Language: Chinese; English
• Published: 13.08.2024
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses an online calibration method for an electric energy meter and an electricity utilization information acquisition terminal. The method comprises the following steps: dividing the power of the electricity utilization information acquisition terminal into a plurality of working grades according to a load connected with the electricity utilization information acquisition terminal; and then periodically executing the step 1, and calibrating the collected current in real time according to the step 2. The method comprises the following steps of: 1, updating a comprehensive transformation ratio error of each working level; the comprehensive transformation ratio error is obtained through a real-time transformation ratio error; and 2, judging the current working grade of the electricity utilization information acquisition terminal, and then correcting the acquired current value according to the comprehensive transformation ratio error corresponding to the working grade. According to the inventio