Composite component system household meter phase and load component calculation method and related device

The invention discloses a composite component system household meter phase and load component calculation method and a related device, and the method comprises the steps: obtaining the single-phase total active power data of a low-voltage outgoing line position of a transformer in different time periods and the total active power data of each household meter in a transformer district, wherein users corresponding to the household meters in the transformer district comprise three-phase four-wire system users and single-phase system users; based on the single-phase total active data and the totalactive data of each household meter, the phase or load component distribution condition of each household meter is calculated according to the Kirchhoff current theorem, so that the problems of electric shock risk, time and labor consumption and easy missing caused by acquiring the phase and load component distribution condition of each household meter through field detection by adopting an instrument in the prior art ar