Modeling and Control of a Medium Voltage Three-Phase Solid-State Transformer

CLAUDIO A. BUSADA; SEBASTIÁN GÓMEZ JORGE; FAVIO MENGATTO; ALEJANDRO R. OLIVA; JORGE A. SOLSONA; GERMÁN BLOCH; ANGÉLICA DELGADILLO; HÉCTOR G. CHIACCHIARINI

Cádiz

Conferencia; 11th International Conference on Compatibility, Power Electronics and Power Engineering; 2017

IEEE-IES

This paper proposes the modeling and control of a Solid-State Transformer built using a three stage conversion topology. First, a rectification stage is used, where a three-phase high-voltage AC signal is converted to a DC level; this stage is then followed by a DC-DC converter, and finally an inverter is used to convert the DC into a three-phase low-voltage AC signal.The adopted topology is modeled by using a simplified model for each stage, useful to design their controllers. Based on these models, the controllers are tuned to obtain a good performance to sudden load changes. This performance is tested through simulations.