TY - JOUR
T1 - Power Dispatch and Voltage Control in Multiterminal HVDC Systems
T2 - A Flexible Approach
AU - Raza, Ali
AU - Liu, Yuchao
AU - Rouzbehi, Kumars
AU - Jamil, Mohsin
AU - Gilani, Syed Omer
AU - Xu, Dianguo
AU - Williams, Barry W.
PY - 2017/10/27
Y1 - 2017/10/27
N2 - This paper deals with the power dispatch and direct voltage control in multiterminal high voltage direct current (MT-HVDC) systems. Generalized voltage droop (GVD) control is adopted for voltage source converters (VSC)s of a MT-HVDC system. A mechanism has been designed based on the power ratio within the GVD controlled stations to achieve flexible autonomous coordination control among VSC-HVDC stations, without need for communication. In this paper, several alternatives are considered to guarantee fault ride through of onshore converter stations. The performance of the proposed control strategy is analyzed with time-domain dynamic simulations, in an EMDTC/PSCAD platform, and experimentally validated. Results demonstrate the robust performance and capabilities of the proposed control strategy during changes in the power demand of the ac grids, unexpected change in wind power generation, and eventual permanent VSC-HVDC station disconnection.
AB - This paper deals with the power dispatch and direct voltage control in multiterminal high voltage direct current (MT-HVDC) systems. Generalized voltage droop (GVD) control is adopted for voltage source converters (VSC)s of a MT-HVDC system. A mechanism has been designed based on the power ratio within the GVD controlled stations to achieve flexible autonomous coordination control among VSC-HVDC stations, without need for communication. In this paper, several alternatives are considered to guarantee fault ride through of onshore converter stations. The performance of the proposed control strategy is analyzed with time-domain dynamic simulations, in an EMDTC/PSCAD platform, and experimentally validated. Results demonstrate the robust performance and capabilities of the proposed control strategy during changes in the power demand of the ac grids, unexpected change in wind power generation, and eventual permanent VSC-HVDC station disconnection.
KW - DC voltage droop control
KW - offshore wind farms
KW - power dispatch
KW - VSC-based multiterminal HVDC grids
UR - https://www.scopus.com/pages/publications/85032433923
U2 - 10.1109/access.2017.2766161
DO - 10.1109/access.2017.2766161
M3 - Article
SN - 2169-3536
VL - 5
SP - 24608
EP - 24616
JO - IEEE Access
JF - IEEE Access
ER -
