Raza A. , Liu Y. , ROUZBEHI, KUMARS, Jamil M. , Gilani S.O. , Dianguo X. , Williams B.W.
No
IEEE Access
Article
Científica
3.557
0.548
01/01/2017
000417742800053
2-s2.0-85032433923
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. © 2013 IEEE.
DC power transmission; Electric load flow; Electric power generation; Electric power system control; Electric power transmission networks; Electric utilities; HVDC power transmission; Offshore wind farms; Power control; Voltage control; Wind power; DC voltage; HVDC transmission; Load flow; Multi-terminal HVDC; Power conversion; Power dispatch; Wind farm; Electric load dispatching