Charging pile remote calibration system and calibration method

• Main Authors: WANG FAN, FANG LIDE, LI YIMING, WEI ZIHUI, DUAN SIHAN, ZHAO NING, TANG ZUO
• Format: Patent
• Language: Chinese; English
• Published: 29.09.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention provides a remote calibration system and calibration method for a charging pile. The system is realized based on a satellite common-view method, the high-precision voltage frequency conversion module and the current frequency conversion module, and electric energy calibration can be carried out on the charging pile at the calibrated end in real time. In frequency deviation measurement, the pulse counter and the time interval counter work cooperatively, the decimal part of a frequency value is measured by the time interval counter, the pulse number of continuous square wave pulses in a second pulse period is measured by the pulse counter as the integer part of the frequency value, and remote calibration of a voltage value/current value is completed. A high-precision voltage frequency conversion module and a high-precision current frequency conversion module are designed, electrical parameters output by a standard voltage source and a current source and electrical parameters output by a to-be-dete