Design representative year acquisition method

The present invention discloses a design representative year acquisition method. The method comprises:firstly, determining a time period of a design representative year and an initial time period of the design representative year; making statistics on a first time period of the initial time period of a long series of data to obtain each frequency design value of the first time period, and using the design value as a design result of the first time period of the design representative year, and successively determining a design value of each time period subsequently until making statistics from the first time period to an ending time period of the long series of data to obtain each frequency design value of the first time period to the ending time period; and finally, by adjusting a numeric value of the ending time period, enabling the numeric values of the first time period to the ending time period to equal to the design value result of making statistics on the long series of data, and using the adjusted numeric value of the ending time period as design result of the ending time period of the design representative year. According to the design representative year acquisition method disclosed by the present invention, the problem that a sum of the design values of multiple adjacent time periods does not equal to the design value with the multiple time periods integrated can be avoided.