En este se investiga el modelado de un sistema del tipo correa transportadora con la finalidad de uso en el monitoreo y en el diagnóstico de faltas. Primeramente es discutido un modelo fenomenológico del proceso, el cual es basado en la aplicación de las leyes de la mecánica y considerando los diversos tipos de fuerza de oposición al movimiento que actúan sobre la correa. Los principales parámetros del transportador fueron estimados utilizando técnicas de identificación basadas en Mínimos Cuadrados No Recursivos. Los resultados obtenidos en estudios computacionales muestran el buen desempeño de la estrategia propuesta, cuando aplicada a datos reales colectados en el sistema de transporte de minerales de una mina de cobre al sur de Pará, Brasil.
This paper presents the design of a proportional-derivative controller (PD controller) by means of the theory of polynomials with interval roots, and applies them to the problem of robust pole placement technique for an interval system represented by a DC motor. It is formulated a optimization problem by Linear Programming approach integrated with the Chebyshev theorem, which incorporates additional constraints on the system and desired performance parameters and allow the designer to find the controller parameters that place closed-loop poles within desired intervals for plants with parameter uncertainties. The design purpose is the minimization of the overall deviation from the desired performance for the closed loop system, as specified by a characteristic polynomials family. For performance comparison, it was designed a classic PD controller and the results shows the good performance.
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