Electric energy metering method and device of intelligent electric energy meter and intelligent electric energy meter

The invention relates to the technical field of intelligent electric energy meters, and discloses an electric energy metering method and device for an intelligent electric energy meter and the intelligent electric energy meter, and the method comprises the steps: obtaining the current and voltage of three-phase power, calculating the first apparent power, the second apparent power and the third apparent power according to the current and the voltage, and carrying out the calculation according to the first apparent power, the second apparent power and the third apparent power; the first apparent power is calculated in a metering chip, and the second apparent power and the third apparent power are calculated in a metering MCU; respectively setting the three apparent powers into corresponding power registers, and accumulating power values and power register values; and when any power register value reaches a preset value, corresponding apparent electric energy is accumulated. The metering chip supports metering