A PI + Sliding-Mode Controller Based on the Discontinuous Conduction Mode for an Unidirectional Buck–Boost Converter with Electric Vehicle Applications

González, Ileana; Sanchez, A.F.; Langarica‐Cordoba, Diego; Yanine-Misleh, Fernando; Ramirez, Victor

doi:10.3390/en14206785

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…Another approach is introduced in the study of Gonzá lez et al [18] to overcome the chattering in SMC. In the work, a PI controller is used to form an outer control loop to form a double control loop with the SMC in discontinuous conduction mode (DCM) buck-boost converter.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear controller for SEPIC with single variable to tune

Haj,

Sood,

Sheir

et al. 2024

Energ. Stor. Conv.

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This work proposes a systematic approach to design a novel integral sliding mode controller (ISMC) for a single-ended primary-inductor converter (SEPIC) with only one tunable parameter where the upper and the lower bounds are derived. The designed surface results in a minimal chattering behaviour at the output voltage as well as at the duty cycle and allows for operating the SEPIC at a fixed switching frequency. The proposed controller can withstand up to a 70% variation in the input voltage and 100% variation on the load side in addition to superior performance for a cold start. The proposed controller and the corresponding mathematical formulation were simulated in a Simulink environment and experimentally tested via a scaled prototype. The proposed controller performance is also compared to a Type-II and integral Linear-Quadratic Regulators (LQR).

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Section: Introductionmentioning

confidence: 99%

Nonlinear controller for SEPIC with single variable to tune

Haj,

Sood,

Sheir

et al. 2024

Energ. Stor. Conv.

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“…Hence, this feature is advantageous when the power converter operates in buck and boost modes under line and load disturbances. The SMC technique has widely been used to control several power converter topologies such as buck [1,2], boost [3], quadratic boost [4], buck-boost [5,6], H-bridge [7,8], and multilevel converter [9]. SMC technique is a nonlinear control technique that offers inherent robustness against variations in system parameters, external disturbances, and modeling uncertainties.…”

Section: Introductionmentioning

confidence: 99%

Robust Sliding-Mode Control Design of DC-DC Zeta Converter Operating in Buck and Boost Modes

Al-Baidhani,

Corti,

Reatti

et al. 2023

Mathematics

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This paper presents a new nonlinear control scheme for a pulse-width modulated dc-dc Zeta converter operating in buck and boost modes. The averaged model of the dc-dc power converter is derived, based on which a robust control law is developed using a simplified sliding-mode control technique. The existence and stability conditions are introduced to select proper controller gains that ensure fast output voltage convergence towards reference voltage. A detailed design procedure is provided to realize the control scheme using low-cost discrete components. The proposed control method handles large disturbances, accommodates the non-minimum phase property, and maintains regulated output voltage during step-up and step-down operation modes. The control system also maintains constant switching frequency, improves the transient response, and eliminates the steady-state error at the output voltage. A MATLAB/SIMULINK model is developed to simulate the closed-loop dc-dc Zeta converter in continuous conduction mode and investigate the tracking and regulation performance. The simulation results confirm the robustness and stability of the nonlinear controlled power converter under abrupt line and load variations.

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“…They can be controlled in a variety of ways, beginning with complete linear control techniques such as hysteretic, pulse width modulation (PWM) and progressing to nonlinear control techniques such as SMC. Due to its robustness against disturbances and uncertainties, the SMC technique has overcome the limitations of previous methods, and it has been adopted in the proposed control technique of the MG in this paper [4].…”

Section: Introductionmentioning

confidence: 99%

A New Decentralized PQ Control for Parallel Inverters in Grid-Tied Microgrids Propelled by SMC-Based Buck–Boost Converters

Jasim

Neagu

2022

Electronics

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Nowadays, the microgrid (MG) concept is regarded as an efficient approach to incorporating renewable generation resources into distribution networks. However, managing power flows to distribute load power among distribution generators (DGs) remains a critical focus, particularly during peak demand. The purpose of this paper is to control the adopted grid-tied MG performance and manage the power flow from/to the parallel DGs and the main grid using discrete-time active/reactive power (PQ) control based on digital proportional resonant (PR) controllers. The PR controller is used to eliminate harmonics by acting as a digital infinite-impulse response (IIR) filter with a high gain at the resonant frequency. Additionally, the applied PR controller has fast reference signal tracking, responsiveness to grid frequency drift, and no steady-state error. Moreover, this paper describes the application of robust nonlinear sliding mode control (SMC)-technique-based buck–boost (BB) converters. The sliding adaptive control scheme is applied to prevent the output voltage error that occurs during DG failure, load variations, or system parameter changes. This paper deals with two distinct case studies. The first one focuses on applying the proposed control for two parallel DGs with and without load-changing conditions. In the latter case, the MG is expanded to include five DGs (with and without DG failure). The proposed control technique has been compared with the droop control and model predictive control (MPC) techniques. As demonstrated by the simulation results in MATLAB software, the proposed method outperformed the others in terms of both performance analysis and the ability to properly share power between parallel DGs and the utility grid.

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A PI + Sliding-Mode Controller Based on the Discontinuous Conduction Mode for an Unidirectional Buck–Boost Converter with Electric Vehicle Applications

Cited by 6 publications

References 23 publications

Nonlinear controller for SEPIC with single variable to tune

Nonlinear controller for SEPIC with single variable to tune

Robust Sliding-Mode Control Design of DC-DC Zeta Converter Operating in Buck and Boost Modes

A New Decentralized PQ Control for Parallel Inverters in Grid-Tied Microgrids Propelled by SMC-Based Buck–Boost Converters

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