Design and Comparative Analysis of Fractional Order Controllers for CUK Converters

Hanif, Omar; Rayeen, Zeeshan; Tiwari, Shraddhesh Kumar

doi:10.1109/poweri.2018.8704434

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…DC-DC CUK converter is one of the power converters used in many studies. The static and dynamic properties of CUK converters have been widely discussed in the literature, where powerful tools for analysis, modeling and design are available [9][10][11][12][13][14]. CUK converters feature excellent properties (capacitive energy transfer, integrity of magnetic components and use of full transformers) and good steady-state performances (wide conversion ratio, smooth input and output currents).…”

Section: Introductionmentioning

confidence: 99%

Control Interface Design and Pid Control of the Cuk Converter

Sevim¹,

Gider²

2021

European Journal of Technic

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The system of CUK converter, which is controlled by PI controller, is unstable due to excessive oscillations caused by excessive integrations. To remove this instability, a converter controlled with a proportional-integral-differential (PID) controller is used. The dynamic model of the system is found by the mathematical analysis of the converter. In this article, PID design and control of CUK converter has been implemented. A fourthorder parametric transfer function is obtained here. The converter is simulated in virtual environment by using the obtained parameters. To find the control parameters of the system, an interface design is carried out. The control parameters (P, PI and PID) of the system are obtained by using the Ziegler-Nichols method. The results were evaluated by simulating the system as uncontrolled, PID controlled and Regulated PID controlled. The performance of CUK converter at different values of parameters by using PID controller is found more effective than PI controller.

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Section: Introductionmentioning

confidence: 99%

Control Interface Design and Pid Control of the Cuk Converter

Sevim¹,

Gider²

2021

European Journal of Technic

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“…Cuk converter is able to step-up and step-down the voltage from the input and has been widely used in many fields [28][29][30]. Among the basic dc-dc converters, the fractionalorder Buck, Boost, and Buck-boost converters have been studied.…”

Section: Introductionmentioning

confidence: 99%

“…However, the modeling method for fractional-order Cuk converter has been less reported. Literature [29,30] designs the fractional-order controller for Cuk converter, but the transfer function does not consider the fractional-order effect of the devices. To intensively study the fractional-order Cuk converter, it is necessary to investigate the modeling methods for Cuk converter.…”

Section: Introductionmentioning

confidence: 99%

Comparisons of Modeling Methods for Fractional-Order Cuk Converter

2021

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In this paper, several modeling methods for the continuous current mode (CCM) fractional-order Cuk converter are investigated. First, the state space averaging method is used to establish the model. Based on this model, the expressions of inductors’ current and capacitor voltage as well as the transfer functions are derived. Then, the equivalent small parameter method (ESPM) is employed to model the converter. Based on the Oustaloup filter principle, the approximate models of fractional-order capacitor and inductors are constructed, which consist of integer-order components, to build the circuit model (CM) of the converter. In addition, the numerical model (NM) of the converter is established. Simulation results are provided to compare the modeling methods, which show that the ESPM has some advantages over the other methods. Finally, the hardware-in-the-loop experiment is conducted to verify the effectiveness of the circuit model.

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