Open AccessImplementation of DC voltage controllers on enhancing the stability of multi-terminal DC grids
Author(s) -
Moussa Belgacem,
Mohamed Khatir,
Mohammed Abdeldjalil Djehaf,
Sid Ahmed Zidi,
Riyadh Bouddou
Publication year - 2021
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijece.v11i3.pp1894-1904
Subject(s) - voltage droop , photovoltaic system , computer science , voltage , voltage source , offshore wind power , control theory (sociology) , grid , terminal (telecommunication) , direct current , electrical engineering , wind power , engineering , control (management) , telecommunications , geometry , mathematics , artificial intelligence
Because of the increasing penetration of intermittent green energy resources like offshore wind farms, solar photovoltaic, the multi-terminal DC grid using VSC technology is considered a promising solution for interconnecting these future energies. To improve the stability of the multi-terminal direct current (MTDC) network, DC voltage control strategies based on voltage margin and voltage droop technique have been developed and investigated in this article. These two control strategies are implemented in the proposed model, a ±400 kV meshed multi-terminal MTDC network based on VSC technology with four terminals during the outage converter. The simulation results include the comparison and analysis of both techniques under the outage converter equipped with constant DC voltage control, then the outage converter equipped with constant active power control. The simulation results confirm that the DC voltage droop technique has a better dynamic performance of power sharing and DC voltage regulation.