Analysis of the harmonic distortion resulting from the interaction between synchronous machines and HVDC convertors

The harmonic voltage distortion caused by static convertors can be greatly affected by the presence of local salient-pole synchronous generators or compensators. Such machines act as harmonic converters and are sensitive to the sequence of the fundamental and harmonic frequencies. An accurate equivalent circuit for the synchronous machine in the multiharmonic space is provided. The model used is integrated with other AC system components, and an iterative sequential algorithm is presented for deriving harmonic interaction between the synchronous machine and static convertor