Complex Affine Arithmetic-Based Power Flow Analysis for Zonal Medium Voltage Direct Current Shipboard Power Systems in the Presence of Power Variation

Fang Lu, Liang Yan, Hongda Liu and Fanming Liu
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Fang Lu: College of Automation, Harbin Engineering University, Harbin 150001, China
Liang Yan: School of Electrical & Electronic Engineering, North China Electric Power University, Baoding 071003, China
Hongda Liu: College of Automation, Harbin Engineering University, Harbin 150001, China
Fanming Liu: College of Automation, Harbin Engineering University, Harbin 150001, China

Energies, 2018, vol. 11, issue 7, 1-16

Abstract: The medium-voltage direct-current (MVDC) ship power system has been extensively investigated and discussed in recent years. This paper presents an alternating current/direct-current (AC/DC) power flow algorithm based on complex affine arithmetic for the zonal MVDC shipboard power system in the presence of power variation. The power converter effect is considered, and an affine power converter model is proposed in the power flow model. An affine-analysis-based sequential method is adopted to solve AC/DC power flows. With the proposed algorithm, the bounds of bus voltages can be effectively obtained. A relative influence factor is defined to quantitatively assess the effect of power variation on voltage profile. Four cases are studied in detail to demonstrate the applicability of the proposed algorithm. The proposed algorithm is useful in network architecture design, planning, and online operations of MVDC power systems when such decisions are subject to power variation.

Keywords: affine arithmetic; power flow; AC/DC; VSC; uncertainty (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 (1)

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