Sliding mode current control of a NOCULL converter based on hysteresis modulation method in a wide range of operating conditions

Goudarzian, Alireza; Khosravi, Adel; Abjadi, Navid Reza

doi:10.1016/j.isatra.2018.10.007

Cited by 15 publications

(14 citation statements)

References 24 publications

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“…43 Generally, there are two major ways to design an SMC for DC/DC converters. Ideally, an SMC will operate at an infinite high frequency to remove sliding-manifold deviations.…”

Section: Discussionmentioning

confidence: 99%

“…Now, by using the Routh-Hurwitz criterion, the resulting array is shown in Table 3. n 0 > 0; n 1 > 0; n 2 > 0; n 3 > 0; n 4 > 0; n 2 n 3 − n 1 n 4 > 0; n 1 n 2 n 3 − n 1 2 n 4 − n 0 n 3 2 > 0: (43) It is impossible to use analytical solutions for investigation of Equation 43 . n 0 > 0; n 1 > 0; n 2 > 0; n 3 > 0; n 4 > 0; n 2 n 3 − n 1 n 4 > 0; n 1 n 2 n 3 − n 1 2 n 4 − n 0 n 3 2 > 0: (43) It is impossible to use analytical solutions for investigation of Equation 43 .…”

Section: Investigation Of the Invariance Conditionmentioning

confidence: 99%

“…Now, by using the Routh-Hurwitz criterion, the resulting array is shown in Table 3. In order to stabilize the developed system, it is required to ensure the satisfaction of conditions expressed in Equation 43. n 0 > 0; n 1 > 0; n 2 > 0; n 3 > 0; n 4 > 0; n 2 n 3 − n 1 n 4 > 0; n 1 n 2 n 3 − n 1 2 n 4 − n 0 n 3 2 > 0: (43) It is impossible to use analytical solutions for investigation of Equation 43 .…”

Section: Investigation Of the Invariance Conditionmentioning

confidence: 99%

“…Also, an SMC introduces several advantages, such as order reduction, large-signal stability, excellent dynamical behavior, and effortless implementation. 43 Generally, there are two major ways to design an SMC for DC/DC converters. In the first method, sliding manifold is indirectly enforced to reach zero from any initial points via a pulse-width-modulation (PWM) modulator.…”

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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“…43 Generally, there are two major ways to design an SMC for DC/DC converters. Ideally, an SMC will operate at an infinite high frequency to remove sliding-manifold deviations.…”

Section: Discussionmentioning

confidence: 99%

Section: Investigation Of the Invariance Conditionmentioning

confidence: 99%

Section: Investigation Of the Invariance Conditionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Self Cite

View full text Add to dashboard Cite

show abstract

“…Also, the super‐lift converters bring a voltage transfer gain near to double the gain of the conventional boost topologies. For more enhancement of the voltage gain, the inverting ultra‐lift Luo converter has been designed and analyzed in References 19 and 20. In addition, various types of dc/dc step‐up topologies with a high voltage transfer gain have been proposed in References 21–30 during the last decades.…”

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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Sliding mode control of double input buck buck–boost fused converter

Sen

Saha

Dey

2020

Asian Journal of Control

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This paper develops a hysteresis band‐based multivariable sliding mode control (SMC) for the double input buck buck–boost fused converter. The considered converter is operated at a controlled output voltage, while supplied from two different levels of input voltages from two different sources. The proposed control is to ensure the faster time of responses during the variation in the dual references, the output voltage, and low‐voltage source current, simultaneously. The controller is developed by considering these two controlled variables, which are directly dependent on each other. This multivariable SMC is shown to perform successfully to maintain the controlled variables at their desired values despite the variation in the input voltage sources and also during perturbation in the load impedance. The stability analysis for the closed‐loop system is established with the Lyapunov method, which confirms that both of the controlled variables reach the desired stable band at the steady state. The control is implemented in the simulation environment for different operating conditions. A laboratory prototype is developed to implement the multivariable SMC. The experimental results successfully validate their simulated counterparts.

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Sliding mode current control of a NOCULL converter based on hysteresis modulation method in a wide range of operating conditions

Cited by 15 publications

References 24 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

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

Sliding mode control of double input buck buck–boost fused converter

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