Analytical efficiency evaluation of VSC-HVDC transmission links

Giddani Kalcon, Grain P. Adam, Olimpo Anaya-Lara, Graeme Burt, K.L. Lo

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


An analytical method to calculate the efficiency of VSC-HVDC links based on two-level and three-level VSCs is presented. The method uses the average and root mean square of the VSC converter current to estimate the conversion losses in the converters (conduction and switching losses). The remaining power losses (DC cable transmission losses due to I2R, the losses in the coupling transformer, and AC harmonic filter losses) are evaluated using conventional well-known methods. Results obtained analytically are confirmed by digital simulations.
Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalInternational Journal of Electrical Power and Energy Systems
Issue number1
Early online date9 Aug 2012
Publication statusPublished - 31 Jan 2013


  • conversion losses
  • IGBTs
  • two-level VSC converter
  • three-level VSC converter

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