Quantization Effects on Period Doubling Route to Chaos in a ZAD-Controlled Buck Converter

Taborda, John Alexander; Burbano, Daniel; Angulo, Fabiola

doi:10.1155/2012/526394

Cited by 5 publications

(6 citation statements)

References 18 publications

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“…The variable structure systems switched via centered pulse width modulation (CPWM) present a great number of dynamic behaviors when the control parameters are changed. Some studies of the DC-DC buck converter [1,2] are obtained with analytical [3,4] numerical [5] and experimental results [6,7] all that for certain values of the parameters where instability, strange phenomena, chaos [8] period bands, and subharmonics are presented. Besides, one-period orbits and above were studied in [9], by using numerical simulation algorithms.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the discontinuous actions of the controller in conjunction with the global system, "chattering" appears increasing ripple and distortion at the output [10]. With the aim of reducing these problems and obtaining regulated signals at the output, the ZAD control technique (zero average dynamics) was proposed [5,[11][12][13] whereby using a sliding surface that is forced to have a zero average in each iteration. Herein, it considers the reference signal, the real value at the output, and its derivatives to calculate the duty cycle.…”

Section: Introductionmentioning

confidence: 99%

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Buck converter controlled with ZAD and FPIC for DC-DC signal regulation

2020

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This paper presents the performance of a fixed-point induction control (FPIC) technique working in conjunction with the non-linear control technique called zero average dynamics (ZAD) to control chaos in a buck converter. The control technique consists of a sliding surface in which the error tends to zero at each sampling period. A switch is controlled by using centered pulse width modulation (CPWM) control signal. The converter controlled with ZAD-FPIC has been simulated in Matlab and implemented using rapid control prototyping (RCP) in a DSP to make comparisons between simulation and experimental tests. To perform this comparison, some variations in the control parameter and the voltage reference are made in order to evaluate the performance of the system. Results are obtained with errors lower than 1 % which demonstrates the good performance of the control techniques.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Buck converter controlled with ZAD and FPIC for DC-DC signal regulation

2020

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“…Numerical [17], analytical [18,19], and experimental tests were also performed to validate the different responses of DC-DC converters [20,21]. However, many of these works have been dedicated to showing the behavior of DC-DC converters, and only a few have focused on the design of DC-AC power converters.…”

Section: Introductionmentioning

confidence: 99%

DC-AC power inverter controlled analogically with zero hysteresis

Hoyos¹,

Velasco²,

Candelo-Becerra³

2019

IJECE

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This paper presents the design and experimental validation of a DC-AC power inverter, controlled analogically with zero hysteresis. A control circuit was built using analog electronics components, and optocoupler devices are used to couple the control module with the power stage. The design of DC-AC inverter with electronics circuit and implementation are shown in detail. Experimental results show the effectiveness of control technique and implementation, leading to a robust system concerning load disturbances. The developed inverter offers the possibility of generating regulated output voltages of different signal types, both DC and AC, variable in frequency and in amplitude, useful for feeding a load with various AC signals.

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“…Numerical [12], analytical [13], and experimental tests also were performed to validate the different responses of DC-DC converters [14]. However, many of these works are dedicated to show the behavior of DC-DC converters, and only a few for DC-AC converters.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of a DC-AC inverter controlled with ZAD-FPIC

2018

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Introduction− Power converters are used in microgrids to transfer power to the load with a regulated voltage. However, the DC-AC converters present distortions in the waveform that can be improved with the help of real-time controllers. Objective− Evaluate the response in alternating current of the buck converter controlled with the ZAD-FPIC technique. Methodology− Based on the differential equations that describe the buck power converter, the ZAD and FPIC controllers are designed. Afterwards, simulations of the complete controlled system are made using Simulink of MATLAB. Then, the system is implemented experimentally and the controller is executed in real-time with the help of a DS1104 from dSPACE. In the end, several tests are carried out to check the effectiveness of the controller. Results− The results show that the controller allows good stability against different variations in the system and in the load. Conclusions− The ZAD-FPIC technique controls the variable and tracks changes in the waveform, magnitude, and frequency of the reference signal. The controller presents good stability to different tests, tracking the reference signal after each event. Keywords− Control of power converters, ZAD-FPIC technique, DC-AC converter, signal tracking Resumen Introducción− Los convertidores de potencia son utilizados en las micro redes para transferir la potencia a la carga con una tensión regulada. Sin embargo, los convertidores DC-AC presentan distorsiones en la forma de onda que pueden ser mejoradas con la ayuda de controladores en tiempo real. Objetivo− Evaluar la respuesta en corriente alterna del convertidor buck controlado con la técnica ZAD-FPIC. Metodología− Se parte de las ecuaciones diferenciales que describen el convertidor de potencia buck, luego se diseñan los controladores ZAD y FPIC, se hacen simulaciones del sistema completo controlado en Simulink de Matlab, se implementa el sistema de forma experimental y el controlador se ejecuta en tiempo real con la ayuda de una DS1104 de la empresa dSPACE, al final se realizan varias pruebas para comprobar la efectividad del controlador. Resultados− Los resultados muestran que el controlador permite que una buena estabilidad contra diversas variaciones en el sistema y en la carga. Conclusiones− La técnica ZAD-FPIC controla la variable y realiza seguimiento ante cambios en la forma de onda, magnitud y frecuencia de la señal de referencia. El controlador presenta buena estabilidad ante diferentes pruebas, siguiendo la señal de referencia después de cada evento. Palabras clave− Control de convertidores de potencia, técnica ZAD-FPIC, convertidor DC-AC, seguimiento de señales Performance evaluation of a DC-AC inverter controlled with ZAD-FPIC Evaluación del desempeño de un inversor DC-AC controlado con ZAD-FPIC

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Quantization Effects on Period Doubling Route to Chaos in a ZAD-Controlled Buck Converter

Cited by 5 publications

References 18 publications

Buck converter controlled with ZAD and FPIC for DC-DC signal regulation

Buck converter controlled with ZAD and FPIC for DC-DC signal regulation

DC-AC power inverter controlled analogically with zero hysteresis

Performance evaluation of a DC-AC inverter controlled with ZAD-FPIC

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