Reducing losses in three-phase PWM pulsed DC-link voltage-type inverters

M. C. Cavalcanti, R. N. Alves, E. R.C. da Silva, A. M.N. Lima, C. B. Jacobina

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


In this proposed paper, a reduced-loss PWM strategy for three-phase inverters that synchronizes the clamping period of one of the phases with the current peak in the phase is extended to the case of a three-phase pulsed DC-link voltage (PDCLV) type inverter. Such strategy, which takes into account the influence of the load power angle on losses, has been employed with an existing soft-switched PDCLV inverter. This topology has been shown to produce less losses than the hard-switched inverter version. The technique is easily implemented by a hybrid modulator scheme that leads to a systematic and straight approach to generate any continuous or discontinuous PWM strategy. Simulated and experimental results demonstrate the validity of the proposed technique.

Original languageEnglish
Pages (from-to)1980-1987
Number of pages8
JournalConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
StatePublished - 2000
Externally publishedYes
Event35th IAS Annual Meeting and Wolrd Conference on Industrial Applications of Electrical Energy - Rome, Italy
Duration: 8 Oct 200012 Oct 2000


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