Invitación - Charla de Postgrado Miércoles 11 de Junio

miércoles 11 jun. 2025 13:30 → 14:30 America/Santiago

Estimados:

Están cordialmente invitados a una nueva charla de postgrado, la que se realizará el próximo miércoles 11 de Junio, a las 13:30 hrs. en la sala de clases de nuestro Departamento.

Se presentará:

**Gustavo Barrezueta F.** alumno de Magister del área Automatización, profesor supervisor Felipe Núñez.

Título: "Stochastic Stability in Networked Control Systems with Multiple Communication Channels".

Resumen: Networked control systems (NCSs) are control systems in which sensor and control data are transmitted over wired or wireless networks. These systems have attracted considerable attention in recent years due to their many advantages over traditional wired architectures, including easier installation and maintenance, greater flexibility in configuration, reduced weight and volume, and lower implementation costs.
Despite these benefits, the use of packet-based communication introduces network-induced imperfections that must be addressed in system design and analysis. Common issues include variable transmission delays, packet dropouts, and irregular sampling intervals—all of which can degrade system performance and stability. In this context, the present thesis provides conditions that ensure uniform asymptotic stability in probability for a class of NCSs subject to stochastic delays over multiple communication channels. Specifically, we consider a setting where plant outputs and control inputs are transmitted over two distinct packet-based networks, each introducing delays with potentially different probability distributions. The derived analytical conditions reveal that delays in the sensor-to-controller channel are more detrimental to system stability than those in the controller-to-actuator channel. This work extends prior results in the literature and are illustrated by a numerical example.

 

**Diego Verdugo N.** alumno de Magister del área Energía, profesor supervisor Félix Rojas.

Título: "Convertidor modular multinivel de alta corriente y media frecuencia".

Resumen: Los convertidores modulares multinivel generalmente son escalados en voltaje, pero igualmente es posible escalarlos en corriente. El escalamiento en corriente genera algunos problemas de balances de las celdas del convertidor, así como corrientes circulantes indeseadas. Esta charla presentará aplicaciones del convertidor modular multinivel en alta corriente, los desafíos que presenta, una posible solución y algunos resultados experimentales. 

Habrá colación y bebida para los asistentes por lo que la asistencia será controlada. Los esperamos a las 13:30 hrs. Si vas a participar, favor inscríbete en el siguiente link y especifica si tienes alguna restricción alimentaria:

https://indico.ing.puc.cl/event/299/

Atentos saludos,

MATÍAS NEGRETE