Analysis of Transmission Loss in Droop Control of a Multi-Terminal HVDC System

Xiaodong Zhao^1*, Kang Li¹, Min Zheng²

¹School of Electronics, Electrical Engineering and Computer Science, Queen’s University, Belfast, UK.
²School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China.

DOI: 10.4236/jpee.2014.24076                

Abstract

High Voltage Direct Current (HVDC) electric power transmission is a promising technology for integrating offshore wind farms and interconnecting power grids in different regions. In order to maintain the DC voltage, droop control has been widely used. Transmission line loss constitutes an import part of the total power loss in a multi-terminal HVDC scheme. In this paper, the relation between droop controller design and transmission loss has been investigated. Different MTDC layout configurations are compared to examine the effect of droop controller design on the transmission loss.

Keywords

MTDC; HVDC; VSC; Transmission Loss; Droop Control

Conflicts of Interest

The authors declare no conflicts of interest.

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