A modified high step-up non-isolated DC-DC converter for PV application

Saravanan, S.; Babu, N. Ramesh

doi:10.1016/j.jart.2016.12.008

Cited by 65 publications

(64 citation statements)

References 27 publications

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“…The design consideration for SEPIC converter in different operating modes with details is presented in Babaei and Seyed Mahmoodieh . The modified SEPIC converter is proposed in Saravanan and Babu . Its structure is such that its static gain is twice than a traditional boost converter.…”

Section: Introductionmentioning

confidence: 99%

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A fully soft switched high step‐up SEPIC‐boost DC‐DC converter with one auxiliary switch

Mirzaei

Rezvanyvardom

Najafi

2019

Circuit Theory & Apps

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Summary This paper proposed a new single‐ended primary inductor converter (SEPIC)‐boost DC‐DC converter that uses only one auxiliary switch to create soft switching condition for all semiconductor devices. The auxiliary circuit comprises one power switch (Sa), one resonant inductor (Lr), one resonant capacitor (Cr), and one diode (Do2). The auxiliary switch (Sa) controls the resonance during switching instants. The converter has simple structure and its control circuit remains pulse width modulation (PWM). Besides, the proposed converter has high voltage gain without using any transformer or coupled inductors. In addition, the auxiliary switch is not located in the main power path. Moreover, using soft switching techniques is the best way for reducing the size, weight, and volume of the converter. Furthermore, reduction of input inrush current and voltage stress for the main switch is obtained by using SEPIC‐boost structure. A laboratory prototype converter is designed and implemented. The experimental results presented confirm the theoretical and features of the proposed converter.

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Section: Introductionmentioning

confidence: 99%

“…15,17 The modified SEPIC converter is proposed in Saravanan and Babu. 19 Its structure is such that its static gain is twice than a traditional boost converter. Moreover, its switching voltage value is half of the output voltage.…”

mentioning

confidence: 99%

A fully soft switched high step‐up SEPIC‐boost DC‐DC converter with one auxiliary switch

Mirzaei

Rezvanyvardom

Najafi

2019

Circuit Theory & Apps

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“…In these converters, the transformer turn ratio can be used in order to achieve high voltage gain. However, high voltage stress and more power loss due to switching of leakage inductor energy are the drawbacks of the aforementioned converters …”

Section: Introductionmentioning

confidence: 99%

A single switch high step-up DC-DC converter with three winding coupled inductor

Mahmoudi

Babaei

2018

Int Trans Electr Energ Syst

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Summary A new high gain DC‐DC converter based on single switch and three‐winding coupled inductor is presented in this paper. Existence of a three‐winding coupled inductor in suggested topology has led to lift voltage gain by low number of windings' turn ratio. As a result, the main advantage of the proposed converter is to produce a high voltage gain without great values of duty cycle. The passive clamped technology is used in the proposed converter. It causes better performance for proposed converter by recycling the leakage inductance energy as well as restricting voltage stress by reducing great voltage spikes. In this paper, performance analysis and mathematical equations of the proposed converter are explained. In addition, variations of voltage gain as a result of leakage inductance and voltage and current stresses of power devices are studied, too. Moreover, performance of the suggested converter and the previously presented high gain ones are compared with together. Lately, a 200‐W prototype is constructed, and the experimental results approve the effectiveness of the proposed converter.

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“…The power characteristic specifies that there is a specific optimum turbine speed for each wind speed where the maximum power is captured. To operate the WECS at that specific point various maximum power point tracking (MPPT) algorithms have been proposed in the literature [5][6][7][8][9][10]. The foremost controllers that are widely used are power signal feedback (PSF), hill climb search (HCS) or perturb and observe (P&O), tip speed ratio (TSR), optimal However, the WECS being a high voltage application increases the switching voltage and stress across the switch, thus reducing the efficiency and risking the failure of switching conversion process [21].…”

Section: Introductionmentioning

confidence: 99%

Neural Network Based Maximum Power Point Tracking Control with Quadratic Boost Converter for PMSG—Wind Energy Conversion System

et al. 2018

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This paper proposes an artificial neural network (ANN) based maximum power point tracking (MPPT) control strategy for wind energy conversion system (WECS) implemented with a DC/DC converter. The proposed topology utilizes a radial basis function network (RBFN) based neural network control strategy to extract the maximum available power from the wind velocity. The results are compared with a classical Perturb and Observe (P&O) method and Back propagation network (BPN) method. In order to achieve a high voltage rating, the system is implemented with a quadratic boost converter and the performance of the converter is validated with a boost and single ended primary inductance converter (SEPIC). The performance of the MPPT technique along with a DC/DC converter is demonstrated using MATLAB/Simulink.

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A modified high step-up non-isolated DC-DC converter for PV application

Cited by 65 publications

References 27 publications

A fully soft switched high step‐up SEPIC‐boost DC‐DC converter with one auxiliary switch

A fully soft switched high step‐up SEPIC‐boost DC‐DC converter with one auxiliary switch

A single switch high step-up DC-DC converter with three winding coupled inductor

Neural Network Based Maximum Power Point Tracking Control with Quadratic Boost Converter for PMSG—Wind Energy Conversion System

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