Designing LC filters by consecutive orthogonal arrays

A design method with consecutive orthogonal arrays is implemented on dimensioning the LC filters in the diode-bridge rectifier for improving the input power quality. The power factor and the total harmonic distortion are assigned as the observational outputs of orthogonal arrays. The average effects are used as indices to arrange the following orthogonal array in accordance with the inferential rules. The implementation of the design method is illustrated by a design example. With much fewer calculations, the desired component values of the LC filter can be found by manipulating a series of consecutive orthogonal arrays.