Analysis and design of LCL filter with passive damping circuits for three-phase grid-connected inverters

Ahn, Hyo-Min; Oh, Chulhong; Sung, Won-Yong; Ahn, Jung-Hoon; Lee, Byoung-Kuk

doi:10.1109/icpe.2015.7167853

Cited by 5 publications

(8 citation statements)

References 8 publications

(18 reference statements)

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“…1(a), is used to simplify the analysis and design of the three-phase LCL filter and passive damping circuits [1,2,5,6]. An ideal utility grid voltage does not have high-order harmonic components.…”

Section: Design Process and Evaluation Of Lcl Filtermentioning

confidence: 99%

“…Therefore, a lowpass filter (LPF) that has a high attenuation ratio of highorder harmonic currents is necessary to be placed between the utility grid and the inverter [1][2][3][4][5][6]. When L filters and LC filters are used in grid-connected inverters, they are designed to be large in order to secure the high attenuation ratio in the high frequency band [6].…”

Section: Introductionmentioning

confidence: 99%

“…However, LCL filters are small and have sufficiently high attenuation ratios in the high frequency band, relative to L filters and LC filters. Therefore, they are commonly used in grid-connected inverters in the previous studies [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…However, at the resonant frequency of the LCL filter, it has a very high resonant peak [1][2][3][4]. Therefore, output currents contain high resonant currents that cause divergence of the output currents.…”

Section: Introductionmentioning

confidence: 99%

“…However, in these studies, comparison and analysis of various types of passive damping circuits have not been seriously considered and only specific types of passive damping circuits have been studied [2][3][4]9]. Thus, the design of reasonable passive damping circuits for LCL filters to satisfy various design criteria has not been sufficiently carried out [1].…”

Section: Introductionmentioning

confidence: 99%

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Analysis and Design of LCL Filter with Passive Damping Circuits for Three-phase Grid-connected Inverters

Ahn¹,

Oh²,

Sung³

et al. 2017

Journal of Electrical Engineering and Technology

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-The analysis and design process of the LCL filter with passive damping circuits for threephase grid-connected inverter are presented based on the generalized model of LCL filter. Several types of the passive damping circuits in previous studies could be compared and analyzed by using the generalized model considering various design criteria of passive damping circuits. According to the analysis in this paper, a reasonable configuration of passive damping circuits for three-phase gridconnected inverters is proposed. The validity of the proposed design process is verified by informative simulation and experimental results.

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Section: Design Process and Evaluation Of Lcl Filtermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis and Design of LCL Filter with Passive Damping Circuits for Three-phase Grid-connected Inverters

Ahn¹,

Oh²,

Sung³

et al. 2017

Journal of Electrical Engineering and Technology

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LC filter optimized design considering the effect on the power converter and capacitor lifetimes

Bolsi,

Prado,

Lenz

et al. 2024

Circuit Theory & Apps

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This work presents an LC filter design methodology that considers the optimization of the converter as a whole: filter, semiconductor switches, and DC bus. The optimization is made in light of the system losses, volume, and the capacitors lifetime, discussing the advantages and disadvantages of decisions in the parametric design of the filter (of the values of L and C). The technology of components and construction challenges are considered in the design. The manuscript guides the design process of the filter in two steps: first, by providing the means to perform the parametric sweep of possible filter designs, according to the converter specifications and other restrictions; second, by describing how the hardware design is carried out and indicating the models and methods that are being used. Individualized analyses for each part of the converter system are made, and using the proposed methodology, three design examples are provided and analyzed, each choosing the filter parameters with different objectives: minimum volume, maximum capacitor lifetime, or maximum efficiency. Results show that using Kool M material results in the lowest filter volumes and losses. It is also shown that for the DC bus design, there is a compromise between volume and lifetime, with a greater number of capacitors increasing both attributes. By designing the system using the proposed methodology, the minimum volume is achieved at an operating point that differs from the individual minimum volumes of the filter and the inverter, and the lifetime is only 1.78% than the maximum lifetime point.

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Hardware-in-the-loop modeling of three-phase T-type neutral point clamped voltage source inverter for battery charging stations

Takacs,

Frivaldsky

2023

2023 IEEE 32nd International Symposium on Industrial Electronics (ISIE)

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Analysis and design of LCL filter with passive damping circuits for three-phase grid-connected inverters

Cited by 5 publications

References 8 publications

Analysis and Design of LCL Filter with Passive Damping Circuits for Three-phase Grid-connected Inverters

Analysis and Design of LCL Filter with Passive Damping Circuits for Three-phase Grid-connected Inverters

LC filter optimized design considering the effect on the power converter and capacitor lifetimes

Hardware-in-the-loop modeling of three-phase T-type neutral point clamped voltage source inverter for battery charging stations

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