Capacitive compensation at nonsinusoidal buses based on IEEE Std. 18-1992

This letter presents a proposed method for finding the optimum fixed compensating capacitor to minimize the voltage harmonic distortion at a load bus while holding the power factor at a desired value and constraining the nameplate kilovar of the compensating capacitor, its rated voltage rms, and its rated current rms as constraints according to IEEE Std. 18-1992. Also, the values of the compensating capacitor, which would create resonant conditions, would be omitted from the solution. Finally, the contribution of the newly developed method is demonstrated in an example taken from previous publications.