A New DC–DC Converter for Photovoltaic Systems: Coupled-Inductors Combined Cuk-SEPIC Converter

Nathan, Kumaran S.; Ghosh, Saikat; Siwakoti, Yam P.; Li, Teng

doi:10.1109/tec.2018.2876454

Cited by 157 publications

(69 citation statements)

References 28 publications

(34 reference statements)

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“…It is very important to mention that the voltage gain equation shows the unique operation of the three-winding coupled inductor. According to (14), it is possible to draw a schematic for the three-winding coupled inductor. The schematic is shown in Figure 4.…”

Section: Of 18mentioning

confidence: 99%

“…Therefore, boost DC/DC converters with high output voltage gain are a good solution to the aforementioned issue since they have a large voltage conversion gain characteristic, high conversion efficiency, and small size [4,5]. Various high step-up converters have been presented to process power from low-voltage DC side to high-voltage DC side [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. The continuous low-ripple input current is another important aspect of the converters that is crucial for renewable energy applications especially fuel cells due to their low dynamic response.…”

Section: Introductionmentioning

confidence: 99%

“…Some advanced schemes such as switched-capacitors and switched inductors are introduced to increase the voltage gain [11][12][13][14][15][16]. Higher voltage gains can be achieved by using the mentioned structures.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Study on an Improved Three-Winding Coupled Inductor Based DC/DC Boost Converter with Continuous Input Current

et al. 2020

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This paper proposes a novel high voltage conversion gain DC/DC boost converter for renewable energy applications and systems. The proposed converter utilizes a three-winding coupled inductor. The presented converter benefits from a unique advantage, as the actual turn ratio of the coupled inductor is decreased in the charging state of the coupled inductor. However, while the inductor is discharging, the actual turn ratio is increased. This feature leads to a very high voltage conversion gain. Furthermore, a passive clamp circuit is employed to recover the leakage current of the coupled inductor. The voltage stresses on the semiconductors are also reduced. In addition, the average current of the primary side of the coupled inductor is zero. This will reduce the total energy stored in the passive elements of the converter. The paper analyzes the Continuous Conduction Mode (CCM) and the operation principles of the presented converter are thoroughly derived. A 250 W laboratory hardware prototype is prepared to verify the proper operation of the presented converter. The obtained experimental results validate the feasibility of the presented converter.

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Section: Of 18mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Study on an Improved Three-Winding Coupled Inductor Based DC/DC Boost Converter with Continuous Input Current

et al. 2020

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“…(2) While the S1 switch is switched on, the current is incremented and the inductor current is decremented step by step [1,2]. The vitality to obtain the current is gotten from the source of voltage.…”

Section: Fig 22 Sepic Circuitmentioning

confidence: 99%

A New Hybrid Converter Design Using Combined SEPIC-CUK Converters

2019

IJRTE

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An improved model of DC-DC converter is proposed in this paper, in light of the blend of the SEPIC and Cuk converters. The said converter is required to work on two shifted sources; a sun powered PV cell and a battery. Despite the fact that each source is to be fit for providing capacity to the circuit, both the sources can give control together if the PV cell doesn't get satisfactory daylight. The Cuk and SEPIC converters are associated with a solitary stage inverter, which gives us our single stage AC yield. For a contribution of 5W, the normal yield is assessed to be 3W.

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“…The CUK converter is place between PMSG coupled rectifier and inverter, responsible for DC link voltage regulations. The CUK converters output acts as a load line to the solar PV module . Application of PSO‐SVPWM controller, the inverter current regulated using PV‐Wind systems.…”

Section: Introductionmentioning

confidence: 99%

An improved hybrid PV‐wind power system with MPPT for water pumping applications

Priyadarshi

Padmanaban

Bhaskar

et al. 2019

Int Trans Electr Energ Syst

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SUMMARY This work articulates the hybrid photovoltaic‐wind power system development for water pump applications. The proposed control scheme is based on modified Artificial Bee Colony (ABC)‐based on Maximum Power Point Tracking (MPPT) algorithm.. On power circuit part, the single CUK converter‐fed induction motor driven a centrifugal pump and has been employed, which improves the system overall performance. The proposed MPPT control provides the smooth propagation of the motor operation as well as forces the photovoltaic system to operate always in maximum power point (MPP) region. Further, the modified ABC algorithm strengthens searching competency and has been employed for the achievement of local optimal maximum power point (MPP) under partial shade conditions with high accuracy and zero oscillation around MPP region when compared with other optimized algorithms. Particle swarm optimization‐space vector pulse‐width modulation (PSO‐SVPWM) was adapted for the inverter; control with standard v/f control is implemented in this work for better speed regulation and reduction in total harmonic distortion. Moreover, the power balance of the integrated hybrid system to the DC bus has been discussed with practicality. This article also explains the comparison of different MPPT algorithms and includes PSO, ant colony optimization, firefly algorithm, and ABC under fast‐changing environmental conditions. In the case of classical ABC method, only one scout bee is responsible to achieve the local maximum. The proposed modified ABC has been used to improve searching capacity, with the addition of scout bees. Experimental results are presented and reveal that the modified ABC algorithm performs 7.5 times faster than the standard PSO technique. Prototype model in hardware setup is developed with MATLAB/Simulink interfaced with dSPACE DS 1104.

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A New DC–DC Converter for Photovoltaic Systems: Coupled-Inductors Combined Cuk-SEPIC Converter

Cited by 157 publications

References 28 publications

A Study on an Improved Three-Winding Coupled Inductor Based DC/DC Boost Converter with Continuous Input Current

A Study on an Improved Three-Winding Coupled Inductor Based DC/DC Boost Converter with Continuous Input Current

A New Hybrid Converter Design Using Combined SEPIC-CUK Converters

An improved hybrid PV‐wind power system with MPPT for water pumping applications

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