Design and analysis of hybrid solar-wind energy system using CUK &amp; SEPIC converters for grid connected inverter application

Chakraborty, Sajib; Reza, Shamim; Hasan, Wahidul

doi:10.1109/peds.2015.7203442

Cited by 16 publications

(6 citation statements)

References 9 publications

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“…For example, in [51], a boost DC-DC converter is employed where low DC voltage gain is required (< 4%). For a low level of DC voltage gain, there are four types of converter available: boost converter [49], buck-boost converter [44], Ćuk converter [102] and SEPIC converter [103]. Among all these the boost converter topology is selected for BEVs and PHEVs because only a positive voltage gain (>1) is required for motor action; whereas buck-boost converters, Ćuk converters, and SEPIC converters can be used for both voltage step-up and step-down operation.…”

Section: Non-isolated Dc-dc Converters For Bevs and Phevsmentioning

confidence: 99%

DC-DC Converter Topologies for Electric Vehicles, Plug-in Hybrid Electric Vehicles and Fast Charging Stations: State of the Art and Future Trends

et al. 2019

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This article reviews the design and evaluation of different DC-DC converter topologies for Battery Electric Vehicles (BEVs) and Plug-in Hybrid Electric Vehicles (PHEVs). The design and evaluation of these converter topologies are presented, analyzed and compared in terms of output power, component count, switching frequency, electromagnetic interference (EMI), losses, effectiveness, reliability and cost. This paper also evaluates the architecture, merits and demerits of converter topologies (AC-DC and DC-DC) for Fast Charging Stations (FCHARs). On the basis of this analysis, it has found that the Multidevice Interleaved DC-DC Bidirectional Converter (MDIBC) is the most suitable topology for high-power BEVs and PHEVs (> 10kW), thanks to its low input current ripples, low output voltage ripples, low electromagnetic interference, bidirectionality, high efficiency and high reliability. In contrast, for low-power electric vehicles (<10 kW), it is tough to recommend a single candidate that is the best in all possible aspects. However, the Sinusoidal Amplitude Converter, the Z-Source DC-DC converter and the boost DC-DC converter with resonant circuit are more suitable for low-power BEVs and PHEVs because of their soft switching, noise-free operation, low switching loss and high efficiency. Finally, this paper explores the opportunity of using wide band gap semiconductors (WBGSs) in DC-DC converters for BEVs, PHEVs and converters for FCHARs. Specifically, the future roadmap of research for WBGSs, modeling of emerging topologies and design techniques of the control system for BEV and PHEV powertrains are also presented in detail, which will certainly help researchers and solution engineers of automotive industries to select the suitable converter topology to achieve the growth of projected power density.

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Section: Non-isolated Dc-dc Converters For Bevs and Phevsmentioning

confidence: 99%

DC-DC Converter Topologies for Electric Vehicles, Plug-in Hybrid Electric Vehicles and Fast Charging Stations: State of the Art and Future Trends

et al. 2019

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“…[54][55][56][57][58] The possibility of minimization of the switching and conduction losses by increasing the switching frequency is the main advantage of switching-mode converters. [54][55][56][57][58] The possibility of minimization of the switching and conduction losses by increasing the switching frequency is the main advantage of switching-mode converters.…”

Section: Comparison Of Nonisolated Dc/dc Converters For Battery-chamentioning

confidence: 99%

“…In recent years, DC/DC converters for battery-charging systems have attracted a great deal of attention in many researches. [54][55][56][57][58] The possibility of minimization of the switching and conduction losses by increasing the switching frequency is the main advantage of switching-mode converters. The selection of an appropriate power converter for DC/DC conversion has a serious impact on an optimal operation of the PV-pumping systems.…”

Section: Comparison Of Nonisolated Dc/dc Converters For Battery-chamentioning

confidence: 99%

“…55 For this topology, the output-current ripple is very large, since there is no inductor at the output node of the converter. Also, the ideal topology of Ćuk, 56 SEPIC, 57 and Zeta 58 converters is shown in Figure 2C-D, respectively. It is obvious that the converters consist of additional inductor and capacitor compared with buck and buck-boost converters, which maintain a low-ripple current and prevent damage and prolong the battery-charger life.…”

Section: Comparison Of Nonisolated Dc/dc Converters For Battery-chamentioning

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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“…According to [16][17][18][19][20] [21], the use of a maximum power point tracking technique (MPPT) algorithm is also necessary to extract as much power as possible from the solar and wind when its irradiation and speed changes. Existing literarure [22] also dealt about PI controller, MPPT algorithm for multiple renewable energy sources with separate DC-DC converters.…”

Section: Introductionmentioning

confidence: 99%

Renewable power interface based rural telecom

Amutha¹,

Andrew²,

Shajie³

et al. 2019

IJPEDS

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<span>To power remote area telecom where grid supplied electricity is unreliable, an alternative exists in the form of renewable energy sources. These sources mainly rely on the weather condition of a particular area for their source of power. To overcome such problem, hybridization of energy sources are prefered. Hybridization of solar-wind systems use a separate converter for each source thus leading to a complex, bulky and less efficient system. This paper presents a single renewable power interface which allows solar and wind sources to supply the load separately or simultaneously depending on the availability of the energy sources. It uses cuk and sepic converter topologies to form cuk-seic interfece. These systems also use battery backup to store excess energy and to make best use of their operating characteristics. Performance comparison between a cuk-sepic renewable power interface with and without MPPT using MATLAB/SIMULINK is presented. A detailed componentwise analysis is also done to calculate best efficient interface. It is found that the cuk-sepic interface with MPPT is efficient. A lab level model for cuk-sepic interface is developed and tested. The experimental results proved the effective operation of a single renewable power cuk-sepic interface with MPPT. </span>

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Design and analysis of hybrid solar-wind energy system using CUK & SEPIC converters for grid connected inverter application

Cited by 16 publications

References 9 publications

DC-DC Converter Topologies for Electric Vehicles, Plug-in Hybrid Electric Vehicles and Fast Charging Stations: State of the Art and Future Trends

DC-DC Converter Topologies for Electric Vehicles, Plug-in Hybrid Electric Vehicles and Fast Charging Stations: State of the Art and Future Trends

Application of DC/DC Ćuk converter as a soft starter for battery chargers based on double‐loop control strategy

Renewable power interface based rural telecom

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