Sliding‐mode control of a boost converter under constant power loading conditions

Martínez-Treviño, Blanca Areli; Aroudi, Abdelali El; Vidal-Idiarte, Enric; Cid-Pastor, A.; Martínez-Salamero, L.

doi:10.1049/iet-pel.2018.5098

Cited by 64 publications

(29 citation statements)

References 26 publications

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“…In real sliding mode, the hysteresis produces finite switching frequency, but the system trajectory chatters around the sliding surface, producing currents within 14 A and 10 A, approximately. This effect could be easily included in the design procedure just replacing (x 2 byx 2 −h) in equations (13) and (19).…”

Section: Simulation Resultsmentioning

confidence: 99%

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A Comparative Study of Terminal and Conventional Sliding-Mode Startup Peak Current Controls for a Synchronous Buck Converter

Repecho

Masclans

Biel

2021

IEEE J. Emerg. Sel. Topics Power Electron.

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An alternative to the linear control techniques, which are based on small signal averaged models, is the sliding mode control. That method uses instantaneous models of the switched power converter to design robust controllers. The large signal modelling allows not only to control the system behaviour around the steady-state, but also the start-up transient. This paper presents the design of two sliding mode controllers that regulate the output voltage of a synchronous buck converter and limit the start-up peak current. A terminal sliding mode control is designed and compared with a first order sliding mode control, which is called here as a conventional sliding mode control. The study shows that the terminal sliding mode control presents lower transient time to reach the final value as compared to the conventional one because of its finite time convergence property. It also achieves better performance in terms of line and load regulation. A power converter prototype of 150 W / 100 kHz is assembled and both sliding mode controllers are digitalized and implemented in a microcontroller. Numerical simulations and experimental results validate the proposal. Index Terms-Sliding mode control, terminal dynamics, synchronous buck converter.

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Section: Simulation Resultsmentioning

confidence: 99%

“…The application of CSMS to power converters has been proposed in the literature [11], [12]. Recently, CSMC has also been successfully implemented by several authors [13]- [20], where its main implementation problem, namely variable switching frequency, has been largely amended.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Terminal and Conventional Sliding-Mode Startup Peak Current Controls for a Synchronous Buck Converter

Repecho

Masclans

Biel

2021

IEEE J. Emerg. Sel. Topics Power Electron.

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“…(2) Second, the power of CPL is estimated according to (20), and I LD is calculated with the measured input voltage. (3) Finally, the duty cycle is calculated according to (19) with determined parameters and measured inductor current, output voltage, and input voltage.…”

Section: Design Of Interconnection Injecting For Ipbcmentioning

confidence: 99%

“…Although satisfactory disturbance rejection performance of the DDC can be obtained by ADRC, there are many parameters of the controller which need to be determined, and the optimization of these parameters is difficult. The sliding-mode duty-ratio controller is proposed in [20], which can maintain the stability of the DDC in the operating domain under the significant changes in load power and input voltage, and it improves the dynamic response and steady performance of the DDC. However, the controller is very complex, and the output voltage fluctuation of the DDC is large.…”

Section: Introductionmentioning

confidence: 99%

A Nonlinear Control Strategy for DC-DC Converter with Unknown Constant Power Load Using Damping and Interconnection Injecting

Wang

Tang

et al. 2021

Energies

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DC-DC converters with constant power loads are mostly used in DC microgrids. Negative impedance and large disturbances of constant power loads may lead to the instability of DC-DC converters. To address this issue, a nonlinear control strategy consisting of an improved passivity-based controller and nonlinear power observer is proposed in this paper. First, an improved passivity-based controller is designed based on the port-controlled Hamiltonian with dissipation model. By proper damping and interconnection injecting, the fast dynamic response of output voltage and stability of the DC-DC converter is achieved. Second, the constant power load is observed by a nonlinear power observer, which is adopted to estimate the power variation of the constant power load within a small settling time and improve the adaptability of the DC-DC converter under power disturbance. Finally, the simulation and experimental results are presented, which illustrate the proposed control strategy not only ensures the stability of the DC-DC converter under large disturbances, but also can track the desired operating point with low voltage overshoot in no more than 10 milliseconds.

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“…The sliding mode control (SMC) has attracted considerable attention in this field because of the inherently variable structured nature of a DC-DC converter [10,11]. Observer-based adaptive SMC was proposed in [12] for a boost converter and stability was proved; however, the tracking error cannot be guaranteed when faced with a large input voltage and load resistance variation because of the lack of integration term.…”

Section: Introductionmentioning

confidence: 99%

Compensated active disturbance rejection control for voltage regulation of a DC–DC boost converter

Yuan

Kim

2020

IET Power Electronics

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This study analysed the output voltage control and performance of a DC-DC boost converter. The focus is on the continuous conduction mode of a DC-DC boost converter and each component is designed and selected for circuit assembly. A small-signal AC model based on a pulse-width modulated DC-DC boost converter is constructed, and four control algorithms, namely the-integral control, deadbeat control, linear quadratic regulator control, conventional active disturbance rejection control and new compensated active disturbance rejection control are put forward to regulate the converter output voltage when faced with immeasurable input and load disturbance. The paper emphasises the objective steering the output voltage to its reference with fast response, little overshoot, and ripples. The equivalent input disturbance observer is utilised to compensate for the tracking error existing in the observed system. Scenarios for validation are investigated in MAT-LAB/Simulink environment and LabVIEW-based field-programmable gate-array experimental rig. The results indicate that the proposed method has the best rejection effect on the above-mentioned system disturbances with stability improvement. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Sliding‐mode control of a boost converter under constant power loading conditions

Cited by 64 publications

References 26 publications

A Comparative Study of Terminal and Conventional Sliding-Mode Startup Peak Current Controls for a Synchronous Buck Converter

A Comparative Study of Terminal and Conventional Sliding-Mode Startup Peak Current Controls for a Synchronous Buck Converter

A Nonlinear Control Strategy for DC-DC Converter with Unknown Constant Power Load Using Damping and Interconnection Injecting

Compensated active disturbance rejection control for voltage regulation of a DC–DC boost converter

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