On Sensitivity Functions and Sensitivity Points – A Case Study for a DC-DC Buck Converter Model

This work deals with metaheuristic optimization algorithms to derive the best parameters for the Gaussian Adaptive PID controller. This controller represents a multimodal problem, where several distinct solutions can achieve similar best performances, and metaheuristics optimization algorithms can behave differently during the optimization process. Finding the correct proportionality between the parameters is an arduous task that often does not have an algebraic solution. The Gaussian functions of each control action have three parameters, resulting in a total of nine parameters to be defined. In this work, we investigate three bio-inspired optimization methods dealing with this problem: Particle Swarm Optimization (PSO), the Artificial Bee Colony (ABC) algorithm, and the Whale Optimization Algorithm (WOA). The computational results considering the Buck converter with a resistive and a nonlinear load as a case study demonstrated that the methods were capable of solving the task. The results are presented and compared, and PSO achieved the best results.

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Duty cycle control scheme to guarantee practical stability: A case study in DC-DC buck converter

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society ◽

10.1109/iecon.2017.8216845 ◽

2017 ◽

Author(s):

Li Po ◽

Lin Xia ◽

Li Ruiyu ◽

Zhu Jianfeng

Keyword(s):

Duty Cycle ◽

Buck Converter ◽

Practical Stability ◽

Control Scheme

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Use of a priori information in the identification of global nonlinear models-a case study using a buck converter

IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications ◽

10.1109/81.855463 ◽

2000 ◽

Vol 47 (7) ◽

pp. 1081-1085 ◽

Cited By ~ 37

Author(s):

L.A. Aguirre ◽

P.F. Donoso-Garcia ◽

R. Santos-Filho

Keyword(s):

Nonlinear Models ◽

A Priori ◽

Buck Converter ◽

A Priori Information ◽

Priori Information

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An equivalence between the ADRC and the Flat filtering controllers: A case study in double buck converter

2018 14th International Conference on Power Electronics (CIEP) ◽

10.1109/ciep.2018.8573339 ◽

2018 ◽

Cited By ~ 1

Author(s):

E. W. Zurita Bustamante ◽

H. Sira-Ramirez ◽

J. Linares-Flores

Keyword(s):

Buck Converter

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Investigation into Magnetic Control of Hard-Switching DC-DC Converters

10.36227/techrxiv.13415765.v1 ◽

2020 ◽

Author(s):

J. Marcos Alonso ◽

Héctor Chinchero ◽

Guirguis Z. Abdelmessih ◽

Yueshi Guan ◽

Yijie Wang

Keyword(s):

Control Method ◽

Buck Converter ◽

Magnetic Control ◽

Control Parameters ◽

Modeling Process ◽

Converter Topology ◽

Variable Inductance ◽

Output Filter ◽

Conduction Mode

In this paper an investigation into magnetic control (MC) of hard-switching (HS) DC-DC converters is carried out. The proposed control method is based on the modulation of the effective filter inductance of the converter when operating in discontinuous conduction mode (DCM). It is well known that the output characteristic of a HS DC-DC converter operating in DCM is dependent on the effective inductance of the output filter. This way, by using a variable inductance the output of the converter can be controlled. The proposed control method can be applied to any converter topology, namely buck, boost, buck-boost, flyback, forward, and so on. In this paper, the operation of the buck converter with MC is investigated in detail as a case study. This work proves that the proposed control method can be effectively used to control DC-DC converters on its own or by combination with other control parameters as duty cycle and/or frequency. An experimental prototype has been built to test the proposed control method and modeling process and to demonstrate its feasibility and possibilities.

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FPGA based chip emulation system for test development of analog and mixed signal circuits: A case study of DC–DC buck converter

Measurement ◽

10.1016/j.measurement.2012.04.022 ◽

2012 ◽

Vol 45 (8) ◽

pp. 1997-2020 ◽

Cited By ~ 4

Author(s):

R. Bhattacharya ◽

S. Biswas ◽

S. Mukhopadhyay

Keyword(s):

Test Development ◽

Buck Converter ◽

Mixed Signal ◽

Mixed Signal Circuits

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Investigation into Magnetic Control of Hard-Switching DC-DC Converters

10.36227/techrxiv.13415765 ◽

2020 ◽

Author(s):

J. Marcos Alonso ◽

Héctor Chinchero ◽

Guirguis Z. Abdelmessih ◽

Yueshi Guan ◽

Yijie Wang

Keyword(s):

Control Method ◽

Buck Converter ◽

Magnetic Control ◽

Control Parameters ◽

Modeling Process ◽

Converter Topology ◽

Variable Inductance ◽

Output Filter ◽

Conduction Mode

In this paper an investigation into magnetic control (MC) of hard-switching (HS) DC-DC converters is carried out. The proposed control method is based on the modulation of the effective filter inductance of the converter when operating in discontinuous conduction mode (DCM). It is well known that the output characteristic of a HS DC-DC converter operating in DCM is dependent on the effective inductance of the output filter. This way, by using a variable inductance the output of the converter can be controlled. The proposed control method can be applied to any converter topology, namely buck, boost, buck-boost, flyback, forward, and so on. In this paper, the operation of the buck converter with MC is investigated in detail as a case study. This work proves that the proposed control method can be effectively used to control DC-DC converters on its own or by combination with other control parameters as duty cycle and/or frequency. An experimental prototype has been built to test the proposed control method and modeling process and to demonstrate its feasibility and possibilities.

Download Full-text