Performance comparison of bidirectional converter designs for renewable power generation

Chong, M. Y.; Rahman, Arief; Aziz, Nasruddin; Khamis, Aziah; Basar, Mohd Farriz

doi:10.1109/peoco.2010.5559213

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…These two operations require two unidirectional converters that increase system complexity and cost. Hence, BDC is designed to resolve the aforesaid problem [28]. It may deliver power in both directions and has numerous usages which include DC motor drives, ESS in RE systems [29,30], fuel cell-based energy systems [31], HEV [32] and UPS [33].…”

Section: Need For Bdc and Essmentioning

confidence: 99%

A comparative analysis of non-isolated Bi-directional converters for energy storage applications

Nagabushanam,

Tewari,

Udumula

et al. 2024

Eng. Res. Express

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Bi-directional DC-DC converters are required for power flow regulation between storage devices and DC buses in renewable energy based distributed generation systems. The fundamental requirements of the BDC are simple structure, reduced switching components, a wide range of voltage gain, low voltage stress, high efficiency, and reduced size. There are different BDC topologies for different applications based on their requirements. Isolated BDC converters are large due to high-frequency transformers and hence used for static energy storage applications whereas non-isolated BDC is lightweight and suitable for dynamic applications like electric vehicles. This paper reviews and compares different non-isolated BDC topologies by carrying out theoretical analysis and validating them through simulation results. A comparative analysis is done to identify the most efficient topology for the distributed generation systems. Five 200W converters are simulated in MATLAB Simulink to validate their steady state performance.

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Section: Need For Bdc and Essmentioning

confidence: 99%

A comparative analysis of non-isolated Bi-directional converters for energy storage applications

Nagabushanam,

Tewari,

Udumula

et al. 2024

Eng. Res. Express

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“…In addition, as the policy to expand the proportion of renewable energy generation is implemented worldwide, DC power sources such as photovoltaic power and fuel cells are rapidly increasing, and the importance of DC systems is increasing [1][2][3][4][5][6][7]. Accordingly, research on bidirectional DC-DC converters for stable energy transfer according to various DC operating voltages is actively conducted [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Current Ripple Reduction Employing the Reactor of DC–DC Converter to Have Variable Inductance through Magnetic Saturation

Lee,

Le,

Kang

et al. 2023

IET Electrical Systems in Transportation

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When DC distribution grids with different voltage levels are connected, harmonic currents flow into the grid under light load conditions, which is a significant cause of grid instability. In this paper, we proposed a method to reduce the current ripple at light load by designing a bidirectional DC–DC converter reactor to have an inductance variable according to the load power capacity. The inductance is varied using magnetic saturation and implemented in three ways: two magnetic circuits in one magnetomotive force (MMF) circuit, a single magnetic circuit in one MMF circuit, and two magnetic components with different magnetic permeability in one MMF circuit. The feasibility is verified through simulation and experiments targeting the 750 and 380 V DC grid connection. The operating characteristics and efficiency are compared and analyzed by applying the existing and proposed variable reactor to a bidirectional DC–DC converter.

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“…are environment dependent so fluctuation of output power and sudden change in load demand makes this hybrid system unreliable so, the solution for this issue is use of storage system like battery, super capacitor etc. with the help of bidirectional dc to dc converter for power conditioning and smooth flow of power to the load [7]- [10] . In industrial application also, bidirectional dc-dc converters are used in many applications because devices are switch on and off at high frequency so DAB (Dual active bride)-IBDC (isolated bidirectional dc to dc converter) provide both galvanic isolation, storage of surplus energy and efficient flow of power without wasting the energy [11].…”

Section: Introductionmentioning

confidence: 99%

Bidirectional dc to dc Converters: An Overview of Various Topologies, Switching Schemes and Control Techniques

Ravi¹,

Reddy²,

S.L³

et al. 2018

IJET

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Bidirectional dc to dc converter is used as a key device for interfacing the storage devices between source and load in renewable energy system for continuous flow of power because the output of the renewable energy system fluctuates due to change in weather conditions. In electric vehicles also, bidirectional converter is used between energy source and motor for power supply from battery to motor. Thus, bidirectional dc to dc converters are getting more and more attention in academic research and in industrial applications. Bidirectional dc to dc converters work in both buck and boost mode and can manage the flow of power in both the direction between two dc sources and load by using specific switching scheme and phase shifted control strategy and hence generated excess energy can be stored in batteries/super capacitors. Therefore, the basic knowledge and classification of bidirectional dc to dc converters on the basis of galvanic isolation, the comparison between their voltage conversion ratio and output current ripple along with various topologies researched in recent years are presented in this paper. Finally, zero current and zero voltage soft switching schemes and phase shifted controlling techniques are also highlighted.

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Performance comparison of bidirectional converter designs for renewable power generation

Cited by 8 publications

References 4 publications

A comparative analysis of non-isolated Bi-directional converters for energy storage applications

A comparative analysis of non-isolated Bi-directional converters for energy storage applications

Current Ripple Reduction Employing the Reactor of DC–DC Converter to Have Variable Inductance through Magnetic Saturation

Bidirectional dc to dc Converters: An Overview of Various Topologies, Switching Schemes and Control Techniques

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