4Space vector pulse width modulation algorithm for the three-level inverter

Three-level inverter topology is widely used in high-voltage/high-power applications with currently available power devices because of its high-voltage handling and good harmonic rejection capabilities. In the previous chapters, the space vector pulse width modulation (SVPWM) scheme for the two-level inverter is described in detail. However, the three-level inverter roughly has four times better harmonic content compared with two-level topology. The harmonic contents of the output voltage are fewer than those of the two-level inverter at the same switching frequency. In addition, the blocking voltage of each switching device is a half of the dc-link voltage and is thus ...

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