Control of a three-stage medium voltage solid-state transformer

BUSADA CLAUDIO; CHIACCHIARINI HÉCTOR GERARDO; GOMEZ JORGE, SEBASTIÁN; MENGATTO FAVIO; ALEJANDRO RAÚL, OLIVA; JORGE A. SOLSONA; BLOCH, G.; DELGADILLO, A.

Advances in Science, Technology and Engineering Systems Journal (ASTESJ)

ASTES

Lugar: Walnut; Año: 2017 vol. 2 p. 119 - 129

2415-6698

This paper proposes the modeling and control of a Solid-StateTransformer using a three-stage conversion topology. First, arectification stage is used, where a three-phase high-voltage AC signalis converted to a DC level; this stage is then followed by a DC-DCconverter, and finally an inverter is used to convert the DC into athree-phase low-voltage AC signal. The adopted topology is modeledusing a simplified model for each stage, useful to design theircontrollers. Based on these models, the controllers are tuned to obtain agood performance to sudden load changes. This performance is testedthrough simulations.