Chaos stabilization with TDAS and FPIC in a buck converter controlled by lateral PWM and ZAD

Angulo, Fabiola; Burgos, J.E.; Olivar, Gerard

doi:10.1109/med.2007.4433846

Cited by 15 publications

(19 citation statements)

References 13 publications

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“…In this study the parameters selected for study and observation were those most likely to change, such as the input voltage . All the parameters with the exception of had a fixed value [14][15][16]. Figure 8 and the results coincided very well with those of the simulation.…”

Section: Matlab Simulationsupporting

confidence: 78%

Analyses and Control of Chaotic Behavior in DC-DC Converters

Tian

et al. 2018

Mathematical Problems in Engineering

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In this study the nonlinear behavior of a buck converter was simulated and the responses of Phases 1 and 2 and the chaotic phase were investigated using changes of input voltage. After a dynamic system model had been acquired using basic electronic circuit theory, Matlab and Pspice simulations were used to study system inductance, resistance, and capacitance. The characteristic changes of input voltage, and phase plane traces from simulation and experiments showed nonlinear behavior in Phases 1 and 2, as well as a chaotic phase. PID control and Integral Absolute Error (IAE) were used as adaption coefficients to control chaotic behavior, and particle swarm optimization (PSO) and the genetic algorithm were used to find the optimal gain parameters for the PID controller. Simulation results showed that the control of chaotic phenomena could be achieved and errors were close to zero. Fuzzy control was also used effectively to prevent chaos. The experimental results also showed nonlinear behavior from Phases 1 and 2 as well as the chaotic phase. Laboratory experiments conducted using both PID and fuzzy control echoed the simulation results. The fuzzy control results were somewhat better than those obtained with PID.

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Section: Matlab Simulationsupporting

confidence: 78%

Analyses and Control of Chaotic Behavior in DC-DC Converters

Tian

et al. 2018

Mathematical Problems in Engineering

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“…16 shows the behavior of the output voltage signal when the signal frequency is changed from υref = 25sen(2π * 10t) V to υref = 25sen(2π * 20t) V. Figs. [17][18][19] show the behavior of the output voltage and the current in the load iR according to the changes in the reference signal. The output signal is composed of a direct current (DC) signal and an alternating current (AC) signal.…”

Section: Results and Analysismentioning

confidence: 99%

“…The FPIC technique was presented in [18] and later tested in [19] and [20]. This technique is useful for autonomous and non-autonomous systems, especially to control discrete systems.…”

Section: Control With Fpicmentioning

confidence: 99%

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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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“…This technique is known as ZAD (Zero Average Dynamics) and consists of the definition of a switching surface on which the system is evolved on average. In [10] , it has been implemented making use of the switching surface (x( )) = ( 1 ( ) − 1 ) + (̇1( ) −̇1 ), where good results are shown in terms of robustness and low output error. In [11,12] it is also applied to analyze the dynamics present in the boost converter to study present non-linear phenomena, driven by a center aligned pulse width modulation converter (CPWM).…”

mentioning

confidence: 99%

Simulation, bifurcation, and stability analysis of a SEPIC converter controlled with ZAD

Morelo¹,

Trujillo²,

Hoyos³

2020

IJECE

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This article presents some results of SEPIC converter dynamics when controlled by a center pulse width modulator controller (CPWM). The duty cycle is calculated using the ZAD (Zero Average Dynamics) technique. Results obtained using this technique show a great variety of non-linear phenomena such as bifurcations and chaos, as parameters associated with the switching surface. These phenomena have been studied in the present paper in numerical form. Simulations were done in MATLAB.

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Chaos stabilization with TDAS and FPIC in a buck converter controlled by lateral PWM and ZAD

Cited by 15 publications

References 13 publications

Analyses and Control of Chaotic Behavior in DC-DC Converters

Analyses and Control of Chaotic Behavior in DC-DC Converters

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

Simulation, bifurcation, and stability analysis of a SEPIC converter controlled with ZAD

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