A power optimization method for air-side apparatus of air conditioning, applied to a plurality of air-side apparatuses, each of the air-side apparatuses comprising a PAH and a first FCU used to execute an air exchanging operation for a first zone, the power optimization method comprising steps of:
- a) calculating a first improving demand for an indoor environment of the first zone to approach a first target comfort value, wherein the first target comfort value comprises target temperature, target humidity and target CO2 quantity, and further comprising following steps of:
- a1) obtaining indoor temperature of the first zone;
- a2) obtaining indoor humidity of the first zone;
- a3) obtaining indoor CO2 quantity of the first zone;
- and
- a4) calculating the first improving demand, wherein the first improving demand is heat exchanging quantity and air exchanging quantity needed for assisting the indoor temperature, the indoor humidity and the indoor CO2 quantity to approach the target temperature, the target humidity and the target CO2 quantity;
- b) testing a first improving capacity that is provided by the PAH and the first FCU to the current indoor environment of the first zone when operating in each working mode, wherein the first improving capacity is heat exchanging quantity and air exchanging quantity that are provided in a time period by the PAH and the first FCU to the first zone when operating in each working mode, and comprising:
- b1) testing average heat exchanging quantity and average air exchanging quantity that are provided by the first FCU to the current indoor environment of the first zone when operating in the current working mode to generate a testing data;
- b2) changing working mode of the PAH and re-executing step b1 if not all working modes of the PAH are tested completely;
- b3) determining whether all working modes of the first FCU are tested completely after all working modes of the PAH are tested completely;
- b4) changing the working mode of the first FCU and re-executing step b1 to step b3 if not all working modes of the first FCU are tested completely;
- b5) recording the plurality of testing data as the first improving capacity after all working modes of the first FCU are tested completely;
- c) transmitting the first improving demand and the first improving capacity to an optimization processing unit;
- d) calculating a plurality of working combinations needed for assisting the indoor environment of the first zone to approach the first target comfort value in a predicted time according to the first improving demand and the first improving capacity by the optimization processing unit;
- e) choosing a specific working combination that is the most power-saving one from the plurality of working combinations according to basic power consumption of the plurality of air-side apparatuses by the optimization processing unit;
- and
- f) controlling the PAH and the first FCU to respectively operate according to the specific working combination by the optimization processing unit.