scholarly journals Experimental Validation of Voltage Regulation in Buck Converters through Fractional-Order PID Approximation

2021 ◽  
Vol 3 (1) ◽  
pp. 44-51
Author(s):  
Josué Soto-Vega ◽  
Allan G. S. Sánchez
Keyword(s):  
Fractional Order ◽  
Experimental Validation ◽  
Closed Loop ◽  
Voltage Regulation ◽  
Phase Curve ◽  
Pid Controllers ◽  
Laplacian Operator ◽  
Buck Converters ◽  
Parameter Variations ◽  
Fractional Order Pid

Viability of a fractional-order PID approximation regulating voltage in buck converters through a single control loop is investigated. Fractional calculus approach is suggested due to it exhibits good robustness against parameter variations. The non-integer approach is integrated in the control strategy through a Laplacian operator biquadratic approximation to generate a flat phase curve in the system closed-loop frequency response, which results in the generation of the iso-damping characteristic. The synthesis and tuning process consider both robustness and closed-loop requirements to ensure a fast and stable regulation characteristic. Experimental data obtained with the resulting controller, which was easy implemented through RC circuits and OPAMPs in adder configuration, confirmed its effectiveness. Superiority of proposed approach, which is determined through a comparison with typical PID controllers, confirms its viability to be used in highly efficient converters, such as Silicon-Carbide ones.

scholarly journals Closed loop control of DC-DC converters using PID and FOPID controllers

2020 ◽  
Vol 11 (3) ◽  
pp. 1323
Author(s):  
Aseem K ◽  
Selva Kumar S
Keyword(s):  
Fractional Order ◽  
Closed Loop ◽  
Pid Controllers ◽  
Closed Loop Control ◽  
Power Electronic ◽  
Power Electronic Converters ◽  
Loop Control ◽  
Boost Converters ◽  
Single Output ◽  
Fractional Order Pid

Fractional order controllers are nowadays used in various power electronic converters as it is giving superior control performance compared with conventional PID controllers. This paper presents the closed loop control of different DC-DC converters using PID controllers and Fractional Order PID (FOPID) controllers. The closed loop control of the basic converters such as buck, boost, buck-boost converters and dual input single output DC-DC converters were designed, modeled and analyzed using conventional PID controller and FOPID controllers. The performance of the controllers are compared in terms of the different time domain specifications like overshoot, rise time, settling time, etc. and simulated in MATLAB Simulink platform. For all types of the DC-DC converters, FOPID controller gives far better performance compared with conventional PID controllers.

scholarly journals Fractional-Order Approximation of PID Controller for Buck–Boost Converters

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 591
Author(s):  
Allan G. Soriano-Sánchez ◽  
Josué Soto-Vega ◽  
Esteban Tlelo-Cuautle ◽  
Martín Antonio Rodríguez-Licea
Keyword(s):  
Fractional Order ◽  
Closed Loop ◽  
Order Approximation ◽  
Phase Curve ◽  
Laplacian Operator ◽  
Experimental Realization ◽  
Loop Control ◽  
Boost Converters ◽  
Tuning Method ◽  
Control Diagram

Viability of a fractional-order proportional–integral–derivative (PID) approximation to regulate voltage in buck–boost converters is investigated. The converter applications range not only to high-power ones but also in micro/nano-scale systems from biomedicine for energy management/harvesting. Using a classic closed-loop control diagram the controller effectiveness is determined. Fractional calculus is considered due to its ability at modeling different types of systems accurately. The non-integer approach is integrated into the control strategy through a Laplacian operator biquadratic approximation to generate a flat phase curve in the system closed-loop frequency response. The controller synthesis considers both robustness and closed-loop performance to ensure a fast and stable regulation characteristic. A simple tuning method provides the appropriate gains to meet design requirements. The superiority of proposed approach, determined by comparing the obtained time constants with those from typical PID controllers, confirms it as alternative to controller non-minimum phases systems. Experimental realization of the resulting controller, implemented through resistor–capacitor (RC) circuits and operational amplifiers (OPAMPs) in adder configuration, confirms its effectiveness and viability.

Exploiting Fractional Order PID Controller Methods in Improving the Performance of Integer Order PID Controllers: A GA Based Approach

2009 ◽  
Author(s):  
Bijoy K. Mukherjee ◽  
Santanu Metia ◽  
Sio-Iong Ao ◽  
Alan Hoi-Shou Chan ◽  
Hideki Katagiri ◽  
...  
Keyword(s):  
Fractional Order ◽  
Pid Controller ◽  
Pid Controllers ◽  
Integer Order ◽  
Fractional Order Pid ◽  
Fractional Order Pid Controller

scholarly journals Fractional-Order Approximation and Synthesis of a PID Controller for a Buck Converter

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 629 ◽  
Author(s):  
Allan G. Soriano-Sánchez ◽  
Martín A. Rodríguez-Licea ◽  
Francisco J. Pérez-Pinal ◽  
José A. Vázquez-López
Keyword(s):  
Fractional Order ◽  
Pid Controller ◽  
Order Approximation ◽  
Buck Converter ◽  
Step Response ◽  
Pid Controllers ◽  
Limited Frequency ◽  
Tuning Process ◽  
Band Limited ◽  
Fractional Order Pid

In this paper, the approximation of a fractional-order PIDcontroller is proposed to control a DC–DC converter. The synthesis and tuning process of the non-integer PID controller is described step by step. A biquadratic approximation is used to produce a flat phase response in a band-limited frequency spectrum. The proposed method takes into consideration both robustness and desired closed-loop characteristics, keeping the tuning process simple. The transfer function of the fractional-order PID controller and its time domain representation are described and analyzed. The step response of the fractional-order PID approximation shows a faster and stable regulation capacity. The comparison between typical PID controllers and the non-integer PID controller is provided to quantify the regulation speed introduced by the fractional-order PID approximation. Numerical simulations are provided to corroborate the effectiveness of the non-integer PID controller.

scholarly journals On Fractional-order PID Controllers

2018 ◽  
Vol 51 (4) ◽  
pp. 739-744 ◽  
Author(s):  
Emmanuel Edet ◽  
Reza Katebi
Keyword(s):  
Fractional Order ◽  
Pid Controllers ◽  
Fractional Order Pid
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