Load adjustment method, adjustment device and management system for transformer area three-phase imbalance

The invention provides a transformer area three-phase imbalance load adjusting method and device and a management system, and the method comprises the steps: constructing a load power supply matrix which represents which power supply phase supplies power for a user; adjusting the load power supply matrix for multiple times according to the load power supply matrix and a set constraint condition so as to meet the set constraint condition, and obtaining an adjusted load power supply matrix; the load power supply matrix and the adjustment load power supply matrix are subjected to difference comparison, a phase modulation scheme is obtained, the current power supply phase of a target user is adjusted to a target power supply phase according to the phase modulation scheme, and the target user is a user with the difference between the load power supply matrix and the adjustment load power supply matrix. The target power supply phase is a power supply phase corresponding to the target user in the adjustment load pow