Sliding mode control of the DC-DC flyback converter with zero steady-state error

Salimi, Mahdi; Soltani, Jafar; Zakipour, Adel; Hajbani, Vadood

doi:10.1109/pedstc.2013.6506695

Cited by 26 publications

(19 citation statements)

References 12 publications

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“…  (18) Although the fact that the proposed control law (6) asymptotically stabilizes the inductor current tracking error dynamics under the input constraints have been verified, whether the entire closed-loop system including the output voltage dynamics (2) is stable remains unknown. Theorem 2 governs the closed-loop stability analysis.…”

Section: L Ref T I T Imentioning

confidence: 98%

“…Many solutions have been proposed to improve the closed-loop performance by using advanced control algorithms, such as deadbeat controllers [14], [15], predictive controllers [16], [17], sliding mode controllers [18], [19], and adaptive controllers [20]- [21], which guarantee closed-loop stability without considering the input constraints of the converter. Recently, in [22], a novel current controller that considered the parameter uncertainties was developed.…”

Section: Introductionmentioning

confidence: 99%

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Input-Constrained Current Controller for DC/DC Boost Converter

Choi¹,

Kim²,

Kim³

et al. 2016

Journal of Power Electronics

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This paper presents a simple input-constrained current controller for a DC/DC boost converter with stability analysis that considers the nonlinearity of the converter model. The proposed controller is designed to satisfy the inherent input constraints of the converter under a physically reasonable assumption, which is the first contribution of this paper. The second contribution is providing a rigorous proof of the proposed control law, which keeps the closed-loop system along with the internal dynamics stable. The performance of the proposed controller is demonstrated through an experiment employing a 20-kW DC/DC boost converter.

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Section: L Ref T I T Imentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Input-Constrained Current Controller for DC/DC Boost Converter

Choi¹,

Kim²,

Kim³

et al. 2016

Journal of Power Electronics

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show abstract

“…Theorem 3 asserts that all positive control gains k P,2 and k I,2 render the output voltage error to be stable under assumption (22). Theorem 3: Assuming condition (22) holds, the closed-loop system comprising (2) and the outer-loop controller (23), (24) is stable for any k P,2 > 0 and k I,2 > 0.…”

Section: B Outer-loop Output Voltage Controller Designmentioning

confidence: 99%

“…There have been many solutions for improving the closedloop performance using advanced control algorithms such as deadbeat controllers [20], predictive controllers [21], sliding mode controllers [22], adaptive controllers [23], [24], model predictive controllers [11], [25]- [27], and robust controllers [3] as the inner-loop current controller. However, these advanced controllers (except for adaptive and sliding mode controllers) require converter parameter information to ensure the desired closed-loop performance and stability.…”

Section: Introductionmentioning

confidence: 99%

Robust Feedback-Linearizing Output Voltage Regulator for DC/DC Boost Converter

Kim

Lee

2015

IEEE Trans. Ind. Electron.

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This article suggests a cascade output voltage regulation strategy for DC/DC boost converters that embeds a robust inner-loop current controller against the parameter variations. The contributions of this study are divided into two parts; the first is to present a simple, robust inner-loop current controller despite the parameter uncertainties, guaranteeing the stability of the whole closed-loop system including the first-order internal dynamics. The second is to show that the outer-loop PI regulator can stabilize the output voltage error, without relying on any parameter information. Simulations and experiments using a 3−kW DC/DC boost converter showed that the proposed method offers satisfactory closed-loop performance in the presence of parameter uncertainties.

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“…Ref. [6] fly back converter provides multiple isolated outputs and therefore it is the preferred topology for industrial applications. In this paper a basic concept of linear circuit is used to model the converter.…”

Section: Continuous Conduction Mode (Ccm) 2 Discontinuous Conductionmentioning

confidence: 99%

Design of Novel Fly-Back Converter Using PID Controller

Modak¹,

P²,

Saha³

et al. 2015

IJAREEIE

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Fly-back converters have been widely used because of the irrelative simplicity and their excellent performance for multi output applications. They can save cost and volume compared with the other converters, especially in moderate low power applications..In a fly-back converter, a transformer is adopted to achieve galvanic isolation and energy storage.Modelling is done without parasitic as well as with parasitic components. A detailed analysis, simulation and different control strategy are conferred for Fly-back converter. To verify the design and modelling at primary stage, study of the converter in for input AC voltage220V at 50Hz and output DC voltage of 440V and 150W output power rating. I.INTRODUCTIONFly-back converter is the most commonly used SMPS circuit for low output power applications where the output voltage needs to be isolated from the input main supply. The output power of fly-back type SMPS circuits may vary from few watts to less than 100 watts. The overall circuit topology of this converter is considerably simpler than other SMPS circuits. Input to the circuit is generally unregulated dc voltage obtained by rectifying the utility ac voltage followed by a simple capacitor filter. The circuit can offer single or multiple isolated output voltages and can operate over wide range of input voltage variation. In respect of energy-efficiency, fly-back power supplies are inferior to many other SMPS circuits but it's simple topology and low cost makes it popular in low output power range.The commonly used fly-back converter requires a single controllable switch like, MOSFET and the usual switching frequency is in the range of 100 kHz. A two-switch topology exists that offers better energy efficiency and less voltage stress across the switches but costs more and the circuit complexity also increases slightly.Parameters such as switching frequency, distortion, losses, harmonic generation and speed of response are typical of the issues which must be considered when developing modulation strategies for a particular family of converters .The DC converter is a device which transforms AC to DC in [1].This device is also known as an AC to DC converter. A Chopper can be considered as a DC equivalent of an AC transformer with a convertible constant convertible in a continuous form. Like a transformer, the converter can be employed for stepwise increase or reduction of DC source voltage. The converters are widely used for the control of motor voltage in electric cars, ceiling elevators, mine excavation etc. Their specific features are the precise control of acceleration with high efficiency and fast dynamic response specially describe in [1].

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Sliding mode control of the DC-DC flyback converter with zero steady-state error

Cited by 26 publications

References 12 publications

Input-Constrained Current Controller for DC/DC Boost Converter

Input-Constrained Current Controller for DC/DC Boost Converter

Robust Feedback-Linearizing Output Voltage Regulator for DC/DC Boost Converter

Design of Novel Fly-Back Converter Using PID Controller

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