Control Oriented Modeling of a Three-Phase Interleaved T-Type Converter

Multilevel converters have been gaining significant interest due to the increasingly demand for high power density and efficient converters. In particular, there has been a growing focus on the three-level T-Type (3LT
²
) converter. However, when multiple 3LT
²
modules are interleaved, it adds complexity to the model and design. The paper approaches this issue and proposes a control-oriented dynamic average-value model (AVM) for the interleaved 3LT
²
converter considering rectifier operation. The obtained model was developed in dq0 frame and its validation through PLECS simulations was considered satisfactory for the purposes of closed-loop control