CPC H02M 1/092 (2013.01) [H02M 7/4835 (2021.05); H02M 7/497 (2013.01)] | 16 Claims |
1. A voltage source converter comprising:
at least one phase leg connected between a first DC terminal having a first voltage and a second DC terminal having a second voltage, the phase leg including an upper arm and a lower arm with cells, where the junction between the arms is connected to a corresponding AC terminal, the converter further including a control unit configured to:
control the cells to output a train of pulses of trapezoidal shape where the generation of a first control signal for a first cell used to initiate a transition between two levels of a pulse coincides with the decision that a transition is to be made,
wherein the decision that a transition is to be made is carried out through a comparison between a carrier and a reference performed for the first cell, which reference is a sinusoidal reference.
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