Fault detection and interruption in an earthed HVDC grid using ROCOV and hybrid DC breakers

J Sneath, AD Rajapakse - IEEE Transactions on Power …, 2014 - ieeexplore.ieee.org
Different HVDC grid types and the respective protection options are discussed. An earthed
bipole HVDC grid was modeled in PSCAD, and using simulation results, the necessity of …

Review of modular multilevel converter based multi-terminal HVDC systems for offshore wind power transmission

Y Zhang, J Ravishankar, J Fletcher, R Li… - … and Sustainable Energy …, 2016 - Elsevier
The limitation of existing point to point high-voltage DC connections for offshore wind farm
transmission is that it does not support power exchange or trading between two or multiple …

Provision of inertial and primary frequency control services using offshore multiterminal HVDC networks

B Silva, CL Moreira, L Seca, Y Phulpin… - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
This paper addresses the problem of providing frequency control services, including inertia
emulation and primary frequency control, from offshore wind farms connected through a …

Control strategies for AC fault ride through in multiterminal HVDC grids

B Silva, CL Moreira, H Leite… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
A fully operational multiterminal dc (MTDC) grid will play a strategic role for mainland ac
systems interconnection and to integrate offshore wind farms. The importance of such …

Distance protection of AC grid with HVDC-connected offshore wind generators

L He, CC Liu, A Pitto, D Cirio - IEEE Transactions on Power …, 2013 - ieeexplore.ieee.org
When a transmission line close to points of common coupling (PCCs) experiences a short-
circuit (SC) fault, the fast reactive power control of voltage-source converter-HVDC (VSC …

Optimal power flow for combined AC and multi-terminal HVDC grids based on VSC converters

R Wiget, G Andersson - 2012 IEEE Power and Energy Society …, 2012 - ieeexplore.ieee.org
In this paper, an optimal power flow for combined AC and DC grids is proposed. Several
suggested projects to increase the transmission capacity are based on multi-terminal HVDC …

A DC grid benchmark model for studies of interconnection of power systems

T An, X Zhou, C Han, Y Wu, Z He… - CSEE Journal of …, 2015 - ieeexplore.ieee.org
A DC grid benchmark model can provide a common reference and study platform for
researchers to compare the performance and characteristics of different DC control functions …

Probabilistic optimal reactive power planning with onshore and offshore wind generation, EV, and PV uncertainties

N Gupta - IEEE Transactions on Industry Applications, 2020 - ieeexplore.ieee.org
This article proposes a probabilistic optimal reactive power planning kee** in view the
uncertainties in renewable generations (wind and photovoltaic systems), loads, and electric …

Decentralized robust frequency regulation of multi-terminal HVDC-linked grids

JS Kim, JY Park, YJ Kim… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This paper proposes a new strategy for optimal grid frequency regulation (FR) in an
interconnected power system where regional ac grids and an offshore wind farm are linked …

Nordic hydropower flexibility and transmission expansion to support integration of North European wind power

H Farahmand, S Jaehnert, T Aigner… - Wind …, 2015 - Wiley Online Library
The expected increase of wind power production in the North and Baltic Seas will
substantially increase the variability of the generation portfolio in Northern Europe. Access to …