Title :
Nonlinear auto-disturbance-rejection control of HVDC system
Author :
Tao, Yu ; Shande, Shen ; Shouzhen, Zhu ; Yuzhu, Zhao ; Weijiang, Zhu
Author_Institution :
Dept. of Electr. Eng. & Electron. Application, Tsinghua Univ., Beijing, China
Abstract :
The uncertainty of the mathematical model is a bottleneck in the domain of HVDC control. This paper introduces a novel nonlinear control method, namely auto-disturbance-rejection control method (ADRC), into the HVDC system, and designs the constant current ADRC for the rectifier and the constant extinction angle ADRC for the inverter. The study results show that the designed controller has excellent control performance, especially outstanding adaptability and robustness against external disturbances and model uncertainties.
Keywords :
AC-DC power convertors; DC-AC power convertors; HVDC power transmission; control system analysis; control system synthesis; invertors; nonlinear control systems; power transmission control; rectifiers; robust control; uncertain systems; HVDC system; adaptability; constant current scheme; constant extinction angle scheme; control design; control performance; control simulation; external disturbances; inverter; mathematical model uncertainty; model uncertainties; nonlinear auto-disturbance-rejection control; rectifier; robustness; Control systems; HVDC transmission; Inverters; Mathematical model; Nonlinear control systems; Power system modeling; Power transmission lines; Rectifiers; Robust control; Voltage control;
Conference_Titel :
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Print_ISBN :
0-7803-7459-2
DOI :
10.1109/ICPST.2002.1047178
