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

Muhammad Omer Khan, Saeed Zaman Jamali,, Chul-Ho Noh, Gi-Hyeon Gwon and Chul-Hwan Kim
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Muhammad Omer Khan: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea
Saeed Zaman Jamali,: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea
Chul-Ho Noh: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea
Gi-Hyeon Gwon: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea
Chul-Hwan Kim: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea

Energies, 2018, vol. 11, issue 2, 1-15

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.

Keywords: load flow analysis; AC/DC hybrid distribution network; distributed energy resources; voltage source converter multi-terminal DC (VSC-MTDC) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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