Title :
Steady-state model for VSC based HVDC and its controller design
Author :
Zhang, Guibin ; Xu, Zheng
Author_Institution :
Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
In this paper, a steady-state model of a VSC (voltage source converter) based HVDC system has been developed. According to this model, the corresponding relationship between the two controlling and the two controlled variables of the VSC is determined. Furthermore, a nonlinear control strategy combining an inverse model controller with a PI controller is proposed, and a nonlinear compensation method is adopted for the DC voltage PI controller. Digital simulation shows the validity of the established steady-state model and the feasibility of the proposed control strategy
Keywords :
HVDC power convertors; HVDC power transmission; compensation; control system synthesis; electric current control; nonlinear control systems; power transmission control; two-term control; voltage control; DC current controlling station; DC voltage PI controller; HVDC system; PI controller; control strategy; controlled variables; controller design; controlling variables; digital simulation; inverse model controller; nonlinear compensation method; nonlinear control; nonlinear control strategy; steady-state model; voltage source converter; Control systems; Converters; Electric variables control; HVDC transmission; Nonlinear control systems; Power conversion; Power system modeling; Pulse width modulation; Steady-state; Voltage control;
Conference_Titel :
Power Engineering Society Winter Meeting, 2001. IEEE
Conference_Location :
Columbus, OH
Print_ISBN :
0-7803-6672-7
DOI :
10.1109/PESW.2001.917220
