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Three-Phase Voltage-Sourced Converter (FLB)

This example shows how to model a three-phase voltage-sourced converter that uses Fixed Low-side Bias (FLB) modulation. This modulation scheme minimizes the switching in the converter as at any given time one phase is not being pulse modulated. The trade-off is the need for narrower pulses for a given level of acceptable harmonics. The model can be used to support selection of suitable values for L, C and the pulse modulation scheme parameters.


The plot below shows the DC supply current, as well as the AC phase currents in the Wye-Connected Load.