Three-phase three-level NPC converters are
nowadays widely utilized in renewable energy conversion devices
such as wind and photovoltaic energies. In this framework, this
paper presents a straightforward real-time implementation
method of a space vector modulation scheme (SVPWM) for a
three-phase three-level NPC voltage source converter. This
method proposes also the use of multiple stationary reference
frames so as to simplify the localization procedure of the
reference vector as well as the theoretical computation of the
duty cycles. The control algorithm is implemented on the DSP
TMS 320F28335 of Texas Instruments. Experimental
investigations are carried out on a laboratory prototype of the
converter and emphasize the effectiveness and validity of the
proposal.