Reverse current control method of synchronous boost converter for fuel cell using a mode boundary detector

Kim, Miji; Shin, Minho; Bae, Kyeung-cheol; Won, Chung-Yuen; Jung, Yong-Chae

doi:10.1109/icit.2014.6894869

Cited by 5 publications

(5 citation statements)

References 3 publications

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“…In general, a soft-starter system for the battery-charger applications should satisfy the following requirement: (a) inrush current of the input and output nodes should be limited to an acceptable level; (b) the charging system should operate in a wide range of conditions and different points; (c) it should accomplish the current trajectory tracking task, despite of input voltage variations. 28 The reverse current controller is suggested in a previous work 41 for cold starting a synchronous boost converter with mode-boundary detector. 38 The principle of the soft start is to produce a PWM control signal with a variable duty cycle, which is applied to drive signal of those devices requiring to work smoothly to reach steady state region.…”

Section: Discussionmentioning

confidence: 99%

“…The step response of the proposed system is obtained in this section to investigate the closed loop stability. By using the Equation 41, the input-signal-to-output-current-transfer function can be obtained as…”

Section: Closed-loop Behavior Of the System And Its Robustness Valimentioning

confidence: 99%

“…These controllers suffer from steady-state error and slow response, because of utilization of an external ramp signal. 28 The reverse current controller is suggested in a previous work 41 for cold starting a synchronous boost converter with mode-boundary detector. However, this is designed by using classical methods and linearizing the system model, which cannot be robust against load disturbances.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 99%

Section: Closed-loop Behavior Of the System And Its Robustness Valimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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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“…With the objective of an electrical efficiency that must be as high as possible, another solution consists in implementing a control strategy to turn off the high side transistor, so that the latter operates only in reverse conduction (in a similar way to a diode) as long as the converter operates in DCM. Reference [7] caught our attention, presenting a method to detect the conduction regime of a synchronous boost converter. This method allows determining in real-time the conduction mode in which the converter operates and can easily be programmed on a microcontroller, without adding any electronic component.…”

Section: Conduction Mode Detection Algorithmmentioning

confidence: 99%

Design and Control of a Synchronous Interleaved Boost ConverterBased on GaN FETs for PEM Fuel Cell Applications

Togni

Harel

Gustin

et al. 2023

Lecture Notes in Electrical Engineering

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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“…The easiest solution is to adopt the classical non-synchronous boost topology which intrinsically prevents negative current flow by replacing top side mosfet with a diode, but it has the drawback of efficiency loss (2-3%). The solution implemented here follows the mode boundary detector approach presented in [55]. This method identifies the two operating conditions on the basis of the parameter k, defined in Equation (7).…”

Section: Reverse Current Controlmentioning

confidence: 99%

Design of an Integrated, Six-Phase, Interleaved, Synchronous DC/DC Boost Converter on a Fuel-Cell-Powered Sport Catamaran

Rimondi

Mandrioli

Cirimele

et al. 2022

Designs

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This paper describes the preliminary analysis, design and implementation phases of a DC/DC boost converter dedicated to the Futura catamaran propulsion chain developed by the UniBoAT team at the University of Bologna. The main goal of the project was the reduction of the converter’s weight by eliminating the use of heat sinks and by reducing the component size, especially inductors and capacitors. The obtained converter is directly integrated into the structure containing the fuel-cell stack. The realized converter was based on an interleaved architecture with six phases controlled through the average current mode control. The design was validated through simulations carried out using the LT-Spice software, whereas experimental validations were performed by means of both bench tests and on-field tests. Detailed thermal and efficiency analyses were provided with the bench tests under the two synchronous and non-synchronous operating modes and with the adoption of the phase-shedding technique. Prototype implementation and performance in real operating conditions are discussed in relation to on-field tests. The designed converter can be used in other applications requiring a voltage-controlled boost converter.

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Reverse current control method of synchronous boost converter for fuel cell using a mode boundary detector

Cited by 5 publications

References 3 publications

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

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

Design and Control of a Synchronous Interleaved Boost ConverterBased on GaN FETs for PEM Fuel Cell Applications

Design of an Integrated, Six-Phase, Interleaved, Synchronous DC/DC Boost Converter on a Fuel-Cell-Powered Sport Catamaran

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