Roland Unruh

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Questions related from Roland Unruh

Are there MMCs or Solide-State Transformers with variable submodule voltages?

Are there already MMCs or Solide-State Transformers, which reduce the submodule voltage or I am the first because in literature, the nominal submodule voltage is always constant. Link to the...

03 August 2020 4,181 5 View

3rd and Higher Order Voltage Harmonics in three-phase Solid-State Transformers (SSTs or Cascaded H-Bridge Multilevel)

Hello, I have a question regarding the zero-sequence voltage injection in three-phase SSTs with bypassed modules in a failure case. I investigated some literature and it is clear that only the...

01 January 1970 8,769 1 View