Stabilizing unstable biomechanical model to understand sitting stability for persons with spinal cord injury

TM Guerra, M Blandeau, AT Nguyen, H Srihi… - IFAC-PapersOnLine, 2020 - Elsevier
This paper deals with the stabilization of a new open-loop unstable non-linear
biomechanical model to represent a person living with a spinal cord injury. The …

A nonlinear modelling approach to quantify sitting control in individuals with sensorimotor impairments

M Blandeau, TM Guerra, A Dequidt… - Asian Journal of …, 2024 - Wiley Online Library
Few biomechanical models of sitting stability have been proposed over the last decades and
most of them control the trunk position through a lumbar torque. Unfortunately, this type of …

[PDF][PDF] Nonlinear observer based on linear matrix inequalities for sensorless grid-tied single-stage photovoltaic system

RA de Jesus Teran-Gonzalez, J Perez… - Adv. Electr. Comput …, 2021 - researchgate.net
Nonlinear Observer used in a Cascade Control scheme for Maximum Power Point Tracking
goals of a grid-tied singlephase photovoltaic inverter. The main contribution of this work is to …

[PDF][PDF] Control Based on Linear Matrix Inequalities for Power Converters of an Islanded AC Microgrid

RA de Jesus Teran, J Perez, JA Beristain… - Advances in Electrical …, 2022 - researchgate.net
The design of primary control schemes based on Takagi-Sugeno Models (TS) and Linear
Matrix Inequalities (LMI) for an islanded AC Microgrid (MG) is presented. The MG converters …

Cascade descriptor observers: application to understanding sitting control of persons living with spinal cord injury

H Srihi, TM Guerra, AT Nguyen, P Pudlo… - Frontiers in Control …, 2021 - frontiersin.org
People with spinal cord injury (SCI) suffer from a drastic reduction in sitting stability which
negatively impacts their postural control. Thus, sitting balance becomes one of the most …

Discrete reference tracking control to swing up an electric wheelchair

M Gray, TM Guerra, S Delprat… - Asian Journal of …, 2023 - Wiley Online Library
Mobility using wheelchair is a crucial feature for disabled people. Between a manual
wheelchair and an electric wheelchair, there is a very interesting and promising solution …

Control of an automated wheelchair

M Gray, TM Guerra, S Delprat, S Mohammad - IFAC-PapersOnLine, 2020 - Elsevier
Due to the world's aging population, the development of affordable and easy to use
wheelchairs is becoming a priority. In this study, the control of an automated wheelchair is …

State Feedback, Performance, and Robustness

M Bernal, A Sala, Z Lendek, TM Guerra - Analysis and Synthesis of …, 2022 - Springer
This chapter investigates state feedback design for models with a convex structure such as
TS, polynomial, and descriptor; LFT is left for the next chapter. Similar to stability analysis …

Practical approach of input delay nonlinear systems: Application to spinal cord injury sitting stability

TM Guerra, M Blandeau, AT Ngyuen, J Pan - IFAC-PapersOnLine, 2019 - Elsevier
This paper is concerned with the design of an application-oriented control law for a
biomechanical model of people living with spinal cord injury sitting stability. A major difficulty …

Stability and stabilization of nonlinear input-delay descriptor systems: a Takagi-Sugeno fuzzy model-based approach

EMC Barbosa - 2020 - repositorio.ufmg.br
This work presents sufficient conditions for stability analysis and fuzzy controller synthesis
for nonlinear descriptor systems represented by TS fuzzy models subject to input delay. The …