Analytical Evaluation of Surface-Mounted PMSG Performances Connected to a Diode Rectifier

M. F. Iacchetti, G. M. Foglia, A. Di Gerlando, Andrew Forsyth

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This paper analyzes some operational issues of three-phase surface-mounted permanent magnet synchronous generators (PMSGs) connected to a diode rectifier. This simple configuration coupled to a single-switch dc–dc converter is used in small-scale wind energy conversion systems, as well as in energy harvesting systems, to reduce costs. The diode rectifier causes an intrinsic limit for the maximum convertible power, which is related to the load impedance matching, and additional joule losses due to the distorted currents. By using an analytical steady-state model of the rectifier and of the PMSG, this paper discusses how to achieve two particularly meaningful operating conditions characterized respectively by the maximum power transfer and the maximum power per ampere. The theory is validated by simulation and test results on a prototype.
    Original languageEnglish
    Pages (from-to)1367-1375
    Number of pages9
    JournalI E E E Transactions on Energy Conversion
    Volume30
    Issue number4
    DOIs
    Publication statusPublished - 20 Nov 2015

    Keywords

    • Fractional-slot windings, permanent magnet synchronous generator (PMSG) design, rectifier, surface-mounted permanent magnet synchronous machines (PMSMs)

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