Optimization of Q and R matrices with genetic algorithms to reduce oscillations in a rotary flexible link system

Automatic control of robots with flexible links has been a pivotal subject in control engineering and robotics due to the challenges posed by vibrations during repetitive movements. These vibrations affect the system’s performance and accuracy, potentially causing errors, wear, and failures. LQR con...

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Detalhes bibliográficos
Autores: Saldaña Enderica, Carlos Alberto, Llata García, José Ramón, Torre Ferrero, Carlos|||0000-0002-9194-1572
Tipo de documento: artigo
Data de publicação:2024
País:España
Recursos:Universidad de Cantabria (UC)
Repositório:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglês
OAI Identifier:oai:repositorio.unican.es:10902/33947
Acesso em linha:https://hdl.handle.net/10902/33947
Access Level:Acceso aberto
Palavra-chave:Genetic algorithms
Vibration control
LQR (linear quadratic regulator)
Flexible link systems
Descrição
Resumo:Automatic control of robots with flexible links has been a pivotal subject in control engineering and robotics due to the challenges posed by vibrations during repetitive movements. These vibrations affect the system’s performance and accuracy, potentially causing errors, wear, and failures. LQR control is a common technique for vibration control, but determining the optimal weight matrices [Q] and [R] is a complex and crucial task. This paper proposes a methodology based on genetic algorithms to define the [Q] and [R] matrices according to design requirements. MATLAB and Simulink, along with data provided by Quanser, will be used to model and evaluate the performance of the proposed approach. The process will include testing and iterative adjustments to optimize performance. The work aims to improve the control of robots with flexible links, offering a methodology that allows for the design of LQR control under the design requirements of controllers used in classical control through the use of genetic algorithms.