Title :
A Synergetic Control Scheme for HVDC Transmission System
Author :
Xu-Feng, Yuan ; Jin-Yu, Wen ; Zhi-Cheng, Zhou ; Shi-Jie, Cheng
Author_Institution :
Dept. of Electr. & Electron. Eng., Huazhong Univ. of Technol. & Sci., Wuhan
Abstract :
HVDC power transmission system is a typical time varying system with many nonlinear relationships among different variables, it is difficult for the conventional PI controller to work effectively for large changes in the operation. In this paper, the synergetic control theory is discussed, and a nonlinear controller based on such theory is proposed for the HVDC power transmission system, in which a constant DC current controller for the rectifier and a constant extinction angle controller for the inverter are designed respectively. Details of design for such control scheme are also given in the paper. In order to verify the effectiveness of the proposed control, the performance the proposed control scheme in the CIGRE benchmark DC transmission system is simulated with PSCAD/EMTDC. The simulation results show that the proposed control works effectively in the start-up process as well as in the conditions when the operation mode shifts for the HVDC system.
Keywords :
HVDC power transmission; control system synthesis; electric current control; nonlinear control systems; power transmission control; time-varying systems; CIGRE benchmark; DC current controller; HVDC transmission system; PSCAD/EMTDC simulation; constant extinction angle controller; inverter; nonlinear controller; power transmission control; rectifier; synergetic control theory; time varying system; Control systems; Control theory; EMTDC; HVDC transmission; Inverters; Nonlinear control systems; PSCAD; Power transmission; Rectifiers; Time varying systems; Constant DC Current Control; Constant DC Voltage Control; HVDC; Synergetic Control;
Conference_Titel :
Power System Technology, 2006. PowerCon 2006. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
1-4244-0110-0
Electronic_ISBN :
1-4244-0111-9
DOI :
10.1109/ICPST.2006.321697