Parameters self‐tuning PID controller circuit with memristors

Lu, Yimin; Liang, Qianqian; Huang, Xianfeng

doi:10.1002/cta.2316

Cited by 14 publications

(7 citation statements)

References 30 publications

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“…Equation ( 16) describes the closed-loop dynamics of the proposed SM control scheme where u can be determined from (12). However, it is too difficult to show the global stability of such a designed switching variable [20].…”

Section: Proposed Approachmentioning

confidence: 99%

“…Design of the fuzzy control method is reported in [4] to enhance the transient response of a power converter. Additionally, digital peak current mode controller [5], Lyapunov-based technique [6], exact input-output feedback linearization [7], dynamic backstepping approach [8,9], passivity-based control [10,11], self-tuning controller [12], and sensorless control [13] are applied to switching-mode converters. However, the aforementioned studies in [4][5][6][7][8][9][10][11][12][13] have some shortcomings: (1) Owing to the limited duty cycle of power converters, these methodologies cannot determine the response of the closed-loop converter in the transient region; (2) these controllers are designed for constant resistive loads.…”

Section: Introductionmentioning

confidence: 99%

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Improved self‐oscillating control of a quadratic buck converter for constant voltage applications

Goudarzian

2023

Asian Journal of Control

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A great number of switching power supplies are used to provide a variable voltage for resistive‐inductive loads. However, some applications in industry, require a regulated current with a constant voltage such as battery charging systems, LED drivers, and laboratory equipment for power converters connected to PV cells. Additionally, some constant voltage systems are intrinsically unstable, and therefore, they cannot be used without a closed‐loop compensatory circuit. Hence, this article describes a novel smooth starter system behaving as a current source for constant voltage applications. The proposed technology is implemented by a quadratic buck converter, and then, a self‐oscillating control technique is applied for performing the output current regulation of the converter, which is capable of aiding to improve the system performance, stabilize the overall system, protect the converter from transient current oscillations, and provide an acceptable control performance. In addition to practical aspects, soft starter methods and limitation of the constant voltage power converter are mentioned and described in this article. The designed structure has not only the advantages of smooth response and simplicity to construct but also performs a nearly zero steady‐state error regulation. The power stage, the control scheme, and the modulator are explained in detail and validated by experiments.

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Section: Proposed Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improved self‐oscillating control of a quadratic buck converter for constant voltage applications

Goudarzian

2023

Asian Journal of Control

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“…Based on the references [13] and [14] memductance can be increased or decreased and the corresponding mathematical simulations can be done. The MPID controller provides more robustness with additional gain margin and phase margin.…”

Section: Memductor Pid Controller (Mpid)mentioning

confidence: 99%

“…Hence a memristor [13] can be accepted as an adjustable gain. In this work, the resistor employed in the PID controller circuit schematic has been replaced by the memristors, and then the impulse voltage is applied to the memristor within the PID [14] controller and then the performance of an MPID controller is analyzed. Memristor [15] is relatively appropriate for control applications because of its compact structure and energy-saving ability.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Memductor Based PID Controller for AVR

Biswal

Swain

Rout

2021

Lecture Notes in Electrical Engineering

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In this work, a design of the PID controller constructed on the memductor model concept and its performance is evaluated further by applying it to an automatic voltage regulator (AVR). The idea is to adjust the PID controller gain settings online through the variation of memconductance during abnormal or transient conditions. The current-feedback operational amplifier (CFOA) is used to regulate the transient response. Further, a charge-controlled grounded emulator (CCGE) circuit is employed for the memductor PID controller (MPID). The proposed approach results in a varying optimum gain parameter of the PID controller instead of constant gain parameter operation in the case of conventional PID controllers. To support the controller's performance, the challenges generally occurred to regulate output voltage automatically by the excitation voltage control in case of synchronous generators under various conditions are taken for investigation and to provide a solution to it. In the end, the superiority and robustness of the memductor based PID controller in comparison to the conventional PID controller are presented and verified with stability analysis in both time and frequency domain form. The comparative simulation results are demonstrated to justify the possibility of real-time application of the proposed approach due to its better performance for numerous power system control applications.

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“…19 Generally, traditional proportional-integral-derivative (PID)-type or PI-type controllers are common control methods in industrial systems, because of the unsophisticated design, simple control scheme, and effortless implementation. 20,21 The design theory of classical controllers is based on local linearization of the plant model to predict the system response in the frequency domain. However, these are inappropriate for large-signal models, which are subjected to significant variations.…”

mentioning

confidence: 99%

Application of DC/DC Ćuk converter as a soft starter for battery chargers based on double‐loop control strategy

Goudarzian

Khosravi

2019

Circuit Theory & Apps

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utilization of a transformer and passive snubbers in isolated converters increases the losses, volume, and cost. The second category is nonisolated converters, which are used for low or medium power levels. These have simple structure, low weight and high efficiency. Most of nonisolated converters are obtained by development of the boost and buckboost topologies. 7,8 It should be noticed that the boost and buck-boost converters are an unsuitable choice for DC/DC energy conversion, because of the pulsating output current. 9 Furthermore, the single-ended primary-inductor converter (SEPIC) normally presents an unbalanced output current. This deteriorated current may be undesirable for electronic systems. To overcome this drawback, Zeta converter has been introduced in many studies. 9-11 It produces a continuous output current. But, the input current of the Zeta converter is discontinuous, resulting in high losses and efficiency reduction. Hence, Ćuk converter has been proposed for industrial applications such as photovoltaic plants, 12 wind energy, 13 electrical vehicles, 14 compressor, 15 and fuel cell systems. 16 This converter can operate in a wide range of the output voltage, input voltage, and load. 17 The first goal of this paper is to show that a Ćuk converter can be well employed in battery charger applications as a soft starter to prevent the system from large current oscillations.So far, many researches have been focused on modelling and control of DC/DC converters. Small signal analysis of power converters is performed in a previous study 18 by considering the effects of parametric resistances and double-loop proportional-integral (PI) controller based on classical methods is proposed in another study. 19 Generally, traditional proportional-integral-derivative (PID)-type or PI-type controllers are common control methods in industrial systems, because of the unsophisticated design, simple control scheme, and effortless implementation. 20,21 The design theory of classical controllers is based on local linearization of the plant model to predict the system response in the frequency domain. However, these are inappropriate for large-signal models, which are subjected to significant variations. Also, it is necessary that the gains of classical methods is repeatedly adjusted to guarantee a favorable performance, because of the changes of controlled system parameters and the effects of uncertainties. In an existing work, 22 an automatic procedure is applied for optimal design of PI and PID controllers. Although this strategy brings more flexibility in design and provides a better response, the proposed control scheme looks to be more complicated as compared with nonadaptive design methods. Contrary to the aforementioned traditional approaches, some nonlinear control techniques have been offered for DC/DC converters in last decades. In the other research, 23 a particular linearized method around the equilibrium point of power converters is utilized to estimate the complete nonlinear system. Moreover, the analogue...

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Parameters self‐tuning PID controller circuit with memristors

Cited by 14 publications

References 30 publications

Improved self‐oscillating control of a quadratic buck converter for constant voltage applications

Improved self‐oscillating control of a quadratic buck converter for constant voltage applications

Design and Analysis of Memductor Based PID Controller for AVR

Application of DC/DC Ćuk converter as a soft starter for battery chargers based on double‐loop control strategy

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