Meteorological design-day construction method for air conditioning load calculation based on

In order to reflect the daily variation law of actual near-extreme meteorological parameters in different regions, puts forward a method for rationally constructing the design days of dry-bulb temperature, wet-bulb temperature and solar irradiance. This method assigns different weight coefficients to each meteorological element and equalizes the dimensionless dry-bulb temperature, wet-bulb temperature and solar irradiance to a normalized parameter. Keeping the outdoor design conditions consistent with joint non-guaranteed duration, uses the normalized result of air conditioning outdoor design conditions as a benchmark to construct the hourly design day. In order to ensure the design day variation trends accurately reflect regional climate differences, extracts the key meteorological features with big data statistical law, and selects the design day, so as to provide references for the determination of design day.