Modeling and Analysis of a Low-Voltage DC  Distribution System

Han, Jeonghoon; Oh, Yun-Sik; Gwon, Gi-Hyeon; Kim, Doo-Ung; Noh, Chul-Ho; Jung, Tack-Hyun; Lee, Soon-Jeong; Kim, Chul‐Hwan

doi:10.3390/resources4030713

Cited by 25 publications

(21 citation statements)

References 19 publications

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“…DC distribution has been the subject of [26,27], but their work lacks comparison of AC and DC at the distribution level. However, the theme of current research is on the comparison of AC and DC distribution systems.…”

Section: Comparison With Previous Researchmentioning

confidence: 99%

Efficiency Comparison of AC and DC Distribution Networks for Modern Residential Localities

et al. 2019

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The paper investigates the system efficiency for power distribution in residential localities considering daily load variations. Relevant system modeling is presented. A mathematical model is devised, which is based on the data from the Energy Information Administration (EIA), USA, for analysis. The results reveal that the DC distribution system can present an equivalent or even better efficiency compared to the AC distribution network with an efficiency advantage of 2.3%, averaged over a day. Furthermore, the distribution systems are compared under various capacities of solar PV accounting for the effect of variation in solar irradiation over time.

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Section: Comparison With Previous Researchmentioning

confidence: 99%

Efficiency Comparison of AC and DC Distribution Networks for Modern Residential Localities

et al. 2019

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“…Utilization of HPF rectifiers is also fundamental in the newest applications related to feeding DC loads [5], DC distribution, and microgrids. On the basis of the high efficiency and flexibility of the low voltage direct current (LVDC) distribution systems [6], HPF rectifiers take part of the main DC source because they incorporate control systems that can help to meet the strict requirements of grid compatibility, safety [7], and power quality [8]. This type of power distribution is also currently integrated in microgrids, which constitutes a popular research topic in several industrial electronics measurement of the input voltage or indirectly by a synchronized reference generator [33].…”

Section: Introductionmentioning

confidence: 99%

Sliding Mode Control of the Isolated Bridgeless SEPIC High Power Factor Rectifier Interfacing an AC Source with a LVDC Distribution Bus

et al. 2019

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This paper deals with the analysis and design of a sliding mode-based controller to obtain high power factor (HPF) in the bridgeless isolated version of the single ended primary inductor converter (SEPIC) operating as a single-phase rectifier. In the work reported here, the converter is used as a unidirectional isolated interface between an AC source and a low voltage direct current (LVDC) distribution bus. The sliding-mode control is used to ensure the tracking of a high quality current reference at the input side, which is obtained from a sine waveform generator synchronized with the grid. The feasibility of the proposal is validated using simulation and experimental results, both of them confirming a reliable operation and showing good static and dynamic performances.

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“…(EMTP) approach to the distribution system can be found in [16]. However, these models only consider monopolar configurations and, when extended to other configurations, do not allow for mutual couplings to be taken into account.…”

Section: Introductionmentioning

confidence: 99%

A State-Space Approach to Modelling DC Distribution Systems

Blij

Ramírez-Elizondo

Spaan

et al. 2018

IEEE Trans. Power Syst.

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Many modelling methods for the analysis of dc distribution grids only consider monopolar configurations and do not allow for mutual couplings to be taken into account. The modelling method presented in this paper aims to deal with both of these issues. A state-space approach was chosen for its flexibility and computational speed. The derived approach can be applied to any dc distribution system regardless of its configuration and takes into account mutual couplings between phase conductors. Moreover, the state-space matrices can be derived in a programmatic manner. The derived model was verified empirically and by a reference model created in Simulink using PowerLib blocks. Subsequently, an illustrative system was analyzed, which showed the utility of the presented method in analyzing the dynamics of dc distribution systems. The presented method could especially be useful for the analysis, design and optimization of, for example, the stability and control systems of dc distribution systems.

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Modeling and Analysis of a Low-Voltage DC Distribution System

Cited by 25 publications

References 19 publications

Efficiency Comparison of AC and DC Distribution Networks for Modern Residential Localities

Efficiency Comparison of AC and DC Distribution Networks for Modern Residential Localities

Sliding Mode Control of the Isolated Bridgeless SEPIC High Power Factor Rectifier Interfacing an AC Source with a LVDC Distribution Bus

A State-Space Approach to Modelling DC Distribution Systems

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