Methodology for control and analysis of a series multiterminal DC system

Abstract

The DC electric energy transmission has shown to be an attractive solution for many applications. In the last few years, the multiterminal arrangement has assumed a relevant position facing the growing necessity of the main grid. Although a great deal of development has been made for parallel schemes, there is not much information and experience in literature conming series multiterminal DC transmission systems. Thus, this paper aims to present the results of studies to establish a control strategy for such systems, as well as the implementation into a transient stability program. Study results using a typical system are presented and discussed in order to verify the proposed model performance.

Discussion on cascade-connected multiterminal UHVDC system and its application

“…Proper design of converter control is essential for reliable operation of MTDC system [9][10][11][12][13][14]. In those MTDC systems put into operation, the control strategies are more complex than normal DC system.…”