Grid-tied power supply system and related device thereof

A system, comprising:

• a controller configured to determine, based on a received scheduling command or an electrical parameter of a grid-tied point, a power parameter;
• and
• an inverter configured to:
• couple to a plurality of power supply modules;
• convert a direct current (DC) from the plurality of power supply modules into an alternating current (AC);
• transmit, through the grid-tied point, the AC to an AC power grid;
• receive, through a communication transmission medium, a power control packet,
• wherein the power control packet comprises the power parameter;
• determine, based on the power parameter, a target power, wherein the target power comprises a target active power or a target reactive power;
• determine, based on the power control packet or the communication transmission medium and from at least four adjustment manners, a target adjustment manner corresponding to the power control packet, wherein the at least four adjustment manners comprise a first active power adjustment manner and a second active power adjustment manner that correspond to the target active power and comprise a first reactive power adjustment manner and a second reactive power adjustment manner that correspond to the target reactive power;
• and
• adjust, to the target active power or the target reactive power in the target adjustment manner, a power to be output by the inverter to the AC power grid,
• wherein a first adjustment response time for adjusting, to the target active power in the first active power adjustment manner, the power is less than a second adjustment response time for adjusting, to the target active power in the second active power adjustment manner, the power, and
• wherein a third adjustment response time for adjusting, to the target reactive power in the first reactive power adjustment manner, the power is less than a fourth adjustment response time for adjusting, to the target reactive power in the second reactive power adjustment manner, the power.