Highly Efficient Single-Stage DAB Microinverter Using a Novel Modulation Strategy to Minimize Reactive Power

Kwon, Owon; Kim, Kwang‐Seop; Kwon, Bong-Hwan

doi:10.1109/jestpe.2021.3090097

Cited by 28 publications

(4 citation statements)

References 34 publications

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“…DC-AC DAB topologies with half bridge were researched in [160]- [162]. In [160], a half bridge with modified devices is directly connected to the grid, while the other side is a conven- ´/V in , where V out ´ is the primary-side referred output voltage. > IEEE TRANSATIONS ON POWER ELECTRONICS < tional full bridge linked to PV.…”

Section: Modified Switches For Ac Sourcesmentioning

confidence: 99%

Review of Dual-Active-Bridge Converters With Topological Modifications

Sha

et al. 2023

IEEE Trans. Power Electron.

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Section: Modified Switches For Ac Sourcesmentioning

confidence: 99%

Review of Dual-Active-Bridge Converters With Topological Modifications

Sha

et al. 2023

IEEE Trans. Power Electron.

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“…International Transactions on Electrical Energy Systems (11), respectively. e current of the switch S is given by ( 12), and the diodes D 1 by ( 13) and D 2 by (14).…”

Section: Operation Stage Of Sbcivm1mentioning

confidence: 99%

“…Besides that, the voltage level provided by a single PV panel is usually lower than 50 V. So, to provide energy to a DC microgrid or AC inverter connected to the grid, a high step-up stage is needed [1][2][3][4][5][6][7][8][9][10]. is type of configuration allows improving energy efficiency in partially shaded conditions since only one solar panel is used [11].…”

Section: Introductionmentioning

confidence: 99%

Stacked Input-Output High Step-Up Buck-Boost DC-DC Converter with Coupled Inductor and Voltage Multiplier

Faistel

Toebe

Andrade

et al. 2022

International Transactions on Electrical Energy Systems

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This paper presents three high voltage gain DC-DC converters based on stacked input and output connection of nonisolated buck-boost converters with coupled inductor and voltage multiplier cells. Besides that, an empirical approach for the coupled inductor winding is proposed to show how to reduce the leakage inductance. In this way, the proposed converter achieves high voltage gain, low voltage, and current stress across the components without using an auxiliary clamp circuit, and they present a low component count. Besides that, this paper presents the evaluation of MPPT, modeling, and control of the converters. To validate the theoretical evaluations, three prototypes were built and evaluated experimentally, considering input power of 200 W, input voltage of 37.4 V, output voltage of 400 V, and switching frequency of 50 kHz. Finally, it should be noted that the maximum efficiency achieved is 97.53% at nominal input power.

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“…In [19], a proportionalvalue modulation technique is proposed for the bidirectional reactive current elimination in DAB converters. A frequency-modulated scheme is introduced [20], incorporating a variable-frequency control algorithm to linearize the nonlinear phase shift angle function to minimize the reactive power flow. However, these methods indirectly manage reactive power to minimize inductor current and do not eliminate reactive power completely.…”

Section: Introductionmentioning

confidence: 99%

Reactive Power Controller for Single Phase Dual Active Bridge DC–DC Converters

Naseem,

Seok

2023

IEEE Access

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In this study, we have proposed a triple-phase shift power-level controller (TPSPC) that achieves zero reactive power generation by fundamental components in a single-phase dual active bridge (DAB) DC-DC converter. The proposed power controller efficiently controls the active and reactive powers independently. The TPSPC regulates the phase shifts between the two H-bridges and inner phase shifts within each bridge to effectively eliminate the reactive power of the fundamental components in the converter. This elimination significantly decreases the inductor current across all load conditions without requiring a multiple mode analysis for the different operational states or any overly complex control functions. Unlike dual-phase shift power-level controllers, the TPSPC uniquely manages each phase shift independently, reducing the inductor current and significantly enhancing the performance. The versatile TPSPC methodology demonstrated in this study is promising for various DAB applications, such as aerospace systems, hybrid electric vehicle charging systems, and the asynchronous interconnection of micro-grids. INDEX TERMSDual active bridge converter, power-level controller, triple-phase shift HAMID NASEEM received the B.E. and M.Tech. degrees in electrical engineering from Aligarh Muslim University, India, in 2008 and 2012, respectively. He is currently pursuing a Ph.D.

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Highly Efficient Single-Stage DAB Microinverter Using a Novel Modulation Strategy to Minimize Reactive Power

Cited by 28 publications

References 34 publications

Review of Dual-Active-Bridge Converters With Topological Modifications

Review of Dual-Active-Bridge Converters With Topological Modifications

Stacked Input-Output High Step-Up Buck-Boost DC-DC Converter with Coupled Inductor and Voltage Multiplier

Reactive Power Controller for Single Phase Dual Active Bridge DC–DC Converters

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