Design, analysis, and implementation of an integral terminal reduced‐order sliding mode controller for a self‐lift positive output Luo converter via Filippov's technique considering the effects of parametric resistances

Goudarzian, Alireza; Khosravi, Adel

doi:10.1002/etep.2776

Cited by 7 publications

(8 citation statements)

References 28 publications

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“…The first type is isolated converters such as half bridge, 2 series-loaded resonant converter, 3 and L3C-resonant power converter. 5,6 Also, or voltage is used gradually, without the current transients; (d) reliable performance even if source-voltage characteristics change between starts; (e) energy-cost reduction; (f) increment of lifetime of a battery. 5,6 Also, or voltage is used gradually, without the current transients; (d) reliable performance even if source-voltage characteristics change between starts; (e) energy-cost reduction; (f) increment of lifetime of a battery.…”

Section: Discussionmentioning

confidence: 99%

“…4 These can be used in high-voltage applications with a low efficiency, which is degraded by the conduction and switching losses associated with the high voltage stress, leakage inductances, and electromagnetic-interference problems. 5,6 Also, or voltage is used gradually, without the current transients; (d) reliable performance even if source-voltage characteristics change between starts; (e) energy-cost reduction; (f) increment of lifetime of a battery. 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.…”

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: Introductionmentioning

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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“…It is considered that the converter works in continuous conduction mode. The converter involves two inductors Lo and L, three capacitors Co, C1, and C, two diodes D1, D, and a semiconductor switch S. [12]. V1, and Vo denote the input voltage and output load voltage.…”

Section: Mathematical Modeling and Circuit Analysismentioning

confidence: 99%

Optimized PID Controller for a Self-lift Positive Output Luo-Converter

İbrahim¹,

Khather²

2020

Proceedings of the Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart

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Voltage lift method opens a suitable way to enhance characteristics of DC-DC converters Self-lift can be defined as a typical approach extensively utilized in developing a DC-DC converter for amplifying output voltage. The use of the self-lift approach in the DC-DC conversion technologies result in designing the positive output Luo power converters with a high voltage transfer gains in the mathematical progression, such approach open the way to securely increasing voltage transfer gain that is related to the DC/DC converters as well as enhancing specifications regarding DC-DC converters. These converters could be utilized in the industrial applications as well as the computer peripheral equipment, particularly with regard to the high-output-voltage projects. Self-lift Positive Output Luo Converter in addition to the PID controller, therefore designed in the presented work, has appropriate output voltage regulations, also there aren't undershoots or overshoots and has been very effective. Detailed and full analysis regarding circuit in addition to discrete in addition to optimized PID controllers with the ABC algorithms was conducted. Furthermore, extensive simulations have been conducted and the results have been specified. PID controller platform has been proved with the use of MATLAB/Simulink model.

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“…These have been well employed in industrial districts in the last two decades for designing converters with a great voltage transfer gain. Some basic structures of the Luo‐converters based on the voltage‐lift and self‐lift techniques are introduced in References 9–12. These can perform step‐up voltage conversion only in the arithmetic progression.…”

Section: Introductionmentioning

confidence: 99%

“…The conventional dc/dc boost converters presented in References 9–30 suffer from a slow dynamic response in continuous‐conduction mode (CCM) operation, because of existence of at least a RHPZ in their dynamic transfer function. Moreover, this RHPZ moves to the right hand of the complex S‐plane, when operating point of the power converters changes.…”

Section: Introductionmentioning

confidence: 99%

Modeling and implementation of a new boost converter with elimination of right‐half ‐plan zero

Goudarzian

Khosravi

Raeisi

2020

Int Trans Electr Energ Syst

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Summary Conventional boost converters used for fuel‐cell applications suffer from a slow dynamic response, due to their non‐minimum phase nature. It is the main challengeable problem in the development of boost topologies working in continuous‐conduction mode (CCM). In order to eliminate the mentioned disadvantage, a boost converter is proposed in this article which is capable to give a high voltage gain. From viewpoint of the boosting feature, the proposed topology is more appropriate to connect a low input voltage to a higher dc voltage of load. Moreover, the duty‐cycle‐to‐output‐voltage transfer function of this converter is free from the right‐half‐plane zero (RHPZ) and therefore, its dynamics are simpler and faster compared with the classical boost converter. To cancel the RHPZ, improve the dynamic behavior and enhance the voltage transfer gain, a separate forward path is provided using a transformer and an additional capacitor in the output node for transferring the input energy to the output load during the switch‐on time interval of the power switch. For derivation of the converter model, the steady state analysis is given in details and the required equations are formulated. The transfer function expression is obtained using the averaging model of the converter and then, the description and comparisons are introduced to reveal the features and superiority of the proposed converter. Also, a laboratory set‐up of the suggested dc/dc boost converter working in CCM is built and tested.

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Design, analysis, and implementation of an integral terminal reduced‐order sliding mode controller for a self‐lift positive output Luo converter via Filippov's technique considering the effects of parametric resistances

Cited by 7 publications

References 28 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

Optimized PID Controller for a Self-lift Positive Output Luo-Converter

Modeling and implementation of a new boost converter with elimination of right‐half ‐plan zero

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