Voltage amplitude and phase adjustment apparatus and method, and computer device and storage medium

An apparatus for regulating amplitude and phase of voltage, comprising:

• a three-phase multi-winding transformer, first winding switches and second winding switches, wherein
• a primary side of each phase of the three-phase multi-winding transformer comprises a first split winding and a second split winding, wherein a starting terminal of the first split winding is connected to an input terminal of the phase, and an ending terminal of the first split winding is connected to a starting terminal of the second split winding of the phase through a first winding switch of the phase, or an ending terminal of the first split winding is connected to a starting terminal of a second split winding of an adjacent phase through a second winding switch of the phase;
• and
• connection modes of the first split windings and the second split windings are switched by controlling operating states of the first winding switches and the second winding switches, to regulate amplitudes and phases of three-phase input voltages.