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Erratum published on 19 April 2018, see Energies 2018, 11(4), 993.

Open AccessArticle
Energies 2018, 11(2), 367; https://doi.org/10.3390/en11020367

A Load Flow Analysis for AC/DC Hybrid Distribution Network Incorporated with Distributed Energy Resources for Different Grid Scenarios

College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea
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Author to whom correspondence should be addressed.
Received: 28 December 2017 / Revised: 25 January 2018 / Accepted: 30 January 2018 / Published: 4 February 2018
(This article belongs to the Section Electrical Power and Energy System)
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Abstract

With the recent developments in power electronics technologies, increased deployment of distributed energy resources (DER) with DC output type at distribution voltage levels and significant increase in the number of sensitive AC and DC loads integrated in distribution network have enforced the traditional power network in the continuous renovation process. In this paper, the load flow solution of hybrid AC/DC distribution networks with the multi-terminal configuration is studied. The impact of voltage source converter (VSC) losses and AC and DC line losses in the presence of DER in the distribution system are assessed. The motivation of this analysis is to consider an increase in the number of converter stations which might result in non-negligible converter losses and the presence of various DER within the network imposing different network scenarios. The proposed schemes are simulated on two modified IEEE 33 bus hybrid AC/DC distribution network test system equipped with VSC-MTDC and the results are presented. Obtained results show that by considering the network losses and the converter losses with large number of converters within the network could lead to very different load flow solution and power transfer between networks, especially considering the AC or DC bus dominated network. View Full-Text
Keywords: load flow analysis; AC/DC hybrid distribution network; distributed energy resources; voltage source converter multi-terminal DC (VSC-MTDC) load flow analysis; AC/DC hybrid distribution network; distributed energy resources; voltage source converter multi-terminal DC (VSC-MTDC)
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Khan, M.O.; Jamali,, S.Z.; Noh, C.-H.; Gwon, G.-H.; Kim, C.-H. A Load Flow Analysis for AC/DC Hybrid Distribution Network Incorporated with Distributed Energy Resources for Different Grid Scenarios. Energies 2018, 11, 367.

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