Determination of harmonics in an ac power system caused by hvdc converters

W. M. Grady, G. T. Heydt

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


HVDC converters are significant point sources of harmonic signals in a power system. As a result, converter filters are often required to reduce the levels of low audio frequency range harmonics injected into an AC network. The objective of this paper is to describe and demonstrate a harmonic power flow algorithm and digital computer program that can be used to analyze characteristic harmonics and solve for the truncated Fourier series of bus voltages and line currents in a balanced three phase system with multiple six and twelve pulse line commutated converters. Filter analysis and HVDC converter operation under a variety of bipolar and monopolar conditions are illustrated for an example transmission system. Results are compared to conventional analysis methods.

Original languageEnglish (US)
Pages (from-to)39-52
Number of pages14
JournalElectric Machines and Power Systems
Issue number1
StatePublished - Jan 1 1985
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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