Method for controlling a multilevel AC/DC converter

Description

For a multi level AC/DC converter with series connection of input stage and parallel connection of output stages as shown in the figure, where DC/DC converter is isolated a control method is proposed. The proposed method allows control of the converter output voltage through regulation of the input current, this control is accomplished by the combined input stage. Using this strategy makes it possible to have flexibility in the control of the DC/DC stage.

TRL SCALE

TRL SCALE 2

Advantages

  • Single control for global input stage
  • Decoupled control of input and output stages
  • Possibility to control harmonics of the intermediate voltages

Applications

  • Bidirectional multilevel AC/DC converters with serial configuration at the input and parallel configuration at the output
  • Traction

Deliverables

  • PATENT WO2018172671
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