Arranque suave para un motor de CD a través de un convertidor reductor CD-CD

Abstract

En este artículo se presenta el diseño e implementación de un controlador de velocidad para un motor de CD a través de un convertidor reductor, el cual sigue una trayectoria de referencia suave diseñada mediante un polinomio de interpolación Bézier. El sistema reduce los picos súbitos de voltaje y corriente en el circuito de armadura del motor durante el arranque. El cálculo del control de velocidad se obtiene de una salida F llamada salida plana (calculada a través de la matriz de controlabilidad de Kalman). Este control se basa en la retroalimentación de todos los estados reescritos en términos de la salida plana y de sus derivadas sucesivas para el seguimiento de la trayectoria. Con la ayuda de la técnica de ubicación de polos es posible sintonizar adecuadamente el controlador en lazo cerrado. La efectividad del sistema se verifi ca experimentalmente mediante una plataforma que está compuesta por el convertidor reductor-motor CD y un modulador PWM.

Robust Flatness Tracking Control for the “DC/DC Buck Converter‐DC Motor” System: Renewable Energy‐Based Power Supply

“…Later, in [6] Ahmad et al designed the PI, fuzzy PI, and LQR controls for the aforementioned system. In contrast to previous works, Linares-Flores et al in [7] presented a velocity smooth starter based on flatness. Further, Bingöl and Paçaci in [8] applied a control based on neural networks.…”

“…On one hand, in order to avoid a division by zero in u av (equation ( 7)) and the DC/DC Buck converter to operate adequately, then the voltage E(t) must be considered strictly positive. On the other hand, the differential parameterization of the unidirectional DC/DC Buck converter-DC motor system, determined by equations ( 4)- (7), turns out to be similar to the case when the power supply is considered to be constant [7]. It is worth mentioning that in some other systems when the power supply is considered to be dynamic (i.e., as E(t)), in the control strategy appears explicitly E(t) and its derivatives with respect to time.…”

Bidirectional Tracking Robust Controls for a DC/DC Buck Converter‐DC Motor System

“…This system, in general, is composed of three stages, namely, a DC/DC Buck converter, a complete bridge inverter, and a DC motor. Unlike the arrangements presented in [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29], such configuration allows the bidirectional driving of the motor shaft. The system average model presented in Figure 1, which was deduced and experimentally validated in [35], is given by…”

Hierarchical Velocity Control Based on Differential Flatness for a DC/DC Buck Converter‐DC Motor System

“…In the works of Linares-Flores and Sira-Ramírez [3][4][5], the effectiveness of the proposed controllers was verified by numerical simulations. Antritter et al in [2] and Linares-Flores in [6] (partially published in [7]), concerning the angular velocity trajectory tracking task in DC/DC Buck converter-DC motor systems, presented a flatness-based average controller, which was experimentally implemented by employing a PWM through acquisition cards. However there was no experimental validation for different parametric uncertainties of the system.…”