Air conditioning system regulation and control method based on personnel number change

The invention discloses an air conditioning system regulation and control method based on personnel number change, which comprises the following steps: acquiring climate parameters of an area where a building is located, and determining building envelope parameters, indoor equipment power, the number of design personnel and basic parameters of an indoor air handling unit; based on the parameters, an air conditioning system application environment simulation model under the design working condition is established, and numerical solution is carried out; calculating a PMV index according to a simulation result, and if the absolute value of the PMV is less than 1, outputting a valve regulation and control parameter and a system energy-saving rate; if the PMV index does not meet the requirement, adjusting the parameters of the air valve and the water valve, and re-establishing the simulation model for iterative calculation until the PMV index meets the requirement; when the indoor personnel deviate from the design