Modeling and analysis of DC distribution systems

Seo, Gab-Su; Baek, Jongbok; Choi, Kwang‐Hwan; Bae, Hyunsu; Cho, Bohyung

doi:10.1109/icpe.2011.5944589

Cited by 72 publications

(39 citation statements)

References 3 publications

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“…It was shown that DC systems incorporating fuel cells, or other local DC generation, encounter less conversion losses. This conclusion was supported by the results presented in [62] by Seo et al…”

Section: Feasibility Of DC Distribution Systemssupporting

confidence: 92%

DC microgrids and distribution systems: An overview

Elsayed

Mohamed

Mohammed

2015

Electric Power Systems Research

506

211

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Section: Feasibility Of DC Distribution Systemssupporting

confidence: 92%

DC microgrids and distribution systems: An overview

Elsayed

Mohamed

Mohammed

2015

Electric Power Systems Research

506

211

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“…Recent studies clearly validated the use of the DC distribution system in residential buildings in South Korea [1]. Other reference literature such as [2][3][4][5] demonstrated the economic potential and viability of the LVDC distribution system in Finland and also, enumerated their benefits and incentives acquired while using this form of electricity distribution.…”

Section: Introductionmentioning

confidence: 93%

A Techno-Economic Feasibility Analysis on LVDC Distribution System for Rural Electrification in South Korea

Afamefuna¹,

Chung²,

Hur³

et al. 2014

Journal of Electrical Engineering and Technology

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-Low voltage direct current (LVDC) distribution system is a suitable techno-economic candidate which can create an innovative solution for distribution network development with respect to rural electrification. This research focuses on the use of LVDC distribution system to replace some of KEPCO's existing traditional medium voltage alternating current (MVAC) distribution network for rural electrification in South Korea. Considering the technical and economic risks and benefits involved in such project, a comparative techno-economic analysis on the LVDC and the MVAC distribution networks is conducted using economic assessment method such as the net present value (NPV) on a discounted cash flow (DCF) basis as well as the sensitivity analysis technique. Each would play a role in an economic performance indicator and a measure of uncertainty and risk involved in the project. In this work, a simulation model and a computational tool are concurrently developed and employed to aid the techno-economic analysis, evaluation, and estimation of the various systems efficiency and / or performance.

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“…1: Grid Interface Unit (GIU) interfacing dc line and utility, Renewable Interface Unit (RIU) interfacing renewable generation, Storage Interface Unit (SIU) storing surplus energy and supplying it back, and Load Interface Unit (LIU) powering loads [8]. The loads are classified into three types: electric that requires dc input, motor that requires customized ac input, and resistive loads that may receive either [9]. Except for the resistive load, which can be modeled as a resistor, the interface units that are implemented by PWM switch mode power supplies (SMPS) can be modeled as a filter with a switch network, as illustrated in Fig.…”

Section: A System Component Model and Analysismentioning

confidence: 99%

A new DC arc fault detection method using DC system component modeling and analysis in low frequency range

Seo

Kim

Lee

et al. 2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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In this paper, system component and arc modeling are presented, along with low frequency range analysis for dc arc fault detection. With an arc fault model consisting of a voltage source and variable resistor, the system during arcing can be described as an equivalent circuit model, which gives motivation for the proposed arc detection method. The presented model represents the low frequency characteristics of the main system components and arc in a dc system. Their influence on the line current can be well described and, as a result, it can be utilized for arc detection. The proposed method can distinguish normal operation from arcing and, as a result, dramatically reduces the possibility of false-positives. Experimental results verify the model validity and performance of the method.

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Modeling and analysis of DC distribution systems

Cited by 72 publications

References 3 publications

DC microgrids and distribution systems: An overview

DC microgrids and distribution systems: An overview

A Techno-Economic Feasibility Analysis on LVDC Distribution System for Rural Electrification in South Korea

A new DC arc fault detection method using DC system component modeling and analysis in low frequency range

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