Design support facility (2), comprising: a
data acquisition unit (11) to acquire a plurality of sets of design candidate data containing a plurality of design parameters as candidates for
design data of an
electric motor, and to acquire an initial evaluation value from each of the plurality of sets of design candidate data; a data generation unit (13) to select at least one upper set of design candidate data with the first rating value that is relatively high as the first design candidate data from the multitude of sets of design candidate data acquired by the
data acquisition unit, and to perform the generation of second design candidate data containing the multitude of design parameters from each set of the first design candidate data; a rating value calculation unit (14) to calculate a second rating value of each set of the first design candidate data based on the multitude of design parameters contained in each set of the first design candidate data, and to calculate the second rating value of each set of the second design candidate data based on the multitude of design parameters contained in each set of the second design candidate data; a
design data selection unit (15) for selecting design candidate data to be used as
design data of the
electric motor from the plurality of sets of first design candidate data and the plurality of sets of second design candidate data on the basis of the second evaluation value calculated by the evaluation value calculation unit; and a preprocessing unit (12) to calculate the first evaluation value of each of the plurality of sets of design candidate data using the plurality of design parameters contained in each of the plurality of sets of design candidate data acquired by the
data acquisition unit (11), a desired level of each of the plurality of design parameters and an ideal value of each of the plurality of design parameters, and to output the first evaluation value of each of the plurality of sets of design candidate data to the
data acquisition unit (11); the multitude of design parameters includes
magnetic flux density, winding temperature, starting current, torque curve, permissible
load time, efficiency and
power factor; wherein the
data acquisition unit (11) comprises a design
data conversion unit (11a) configured to convert each design parameter by replacing each design parameter contained in each set of design candidate data into an objective function; and wherein the preprocessing unit (12) is configured to provide the first evaluation value V n the design candidate data x n ' to calculate by using the design parameter g(y m ') after the conversion, the desired level f m asp and the ideal value f m ideal replaced by an
evaluation function that is V n = maxm ( g ( ym ' ) − fmaspfmasp − fmideal ) is expressed where max is a mathematical symbol that searches for m with a maximum value in () under m = 1,..., M and expresses the maximum value as V n determines.