Table look-up scheme-based electric energy metering device calibration coefficient calculation method

The invention discloses a table look-up scheme-based electric energy metering device calibration coefficient calculation method. According to the method, the data of corrected voltage, corrected current, corrected power and other metering data are issued by meter correction software except a metering device. After that, the metering device completes the error calculation according to specification parameters and then converts an obtained error into a calibration coefficient. The calibration coefficient is stored in a metering chip. Simultaneously, when the metering device is not calibrated or fails to acquire the calibration coefficient, the metering device conducts the electric energy metering operation according to a default calibration coefficient acquired through the specification parameter-based table searching process. According to the technical scheme of the invention, the calibration coefficient is automatically calculated, and the labor investment is reduced. The calibration error is calculated by th