A General Approach to Harmonic Current Generation by HVDC Converters

Abstract
A general approach to the computation of current harmonics is presented for the ac side of HVDC transmission installations considering both normal and abnormal harmonics that can arise from harmonic distortion of the supply waveform and perturbations in the control firing pulses. Attention is given to 12- pulse converter operation and to alternative types of automatic control. A comprehensive digital computer program is described and examples of computed harmonics are given.

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