Title :
Analysis of a robust DC-bus voltage control system for a VSC transmission scheme
Author :
Thomas, J.L. ; Poullain, S. ; Benchaib, A.
Author_Institution :
Power Electron. Res. Team, Alstom Technol., France
Abstract :
This paper proposes a high dynamic digital control scheme for IGBT based VSC HVDC power transmission, i.e. VSC-HVDC system, based on equivalent continuous-time state-space models for the rectifier/inverter actuators, using a nonlinear approach. In this paper, both tracking and regulation problems are presented in order to perform a robust DC-bus voltage control. Results illustrate the good behaviour of the system variables in response to positive and negative active power steps.
Keywords :
HVDC power convertors; HVDC power transmission; control system analysis; control system synthesis; insulated gate bipolar transistors; load flow control; nonlinear control systems; power bipolar transistors; robust control; state-space methods; voltage control; IGBT VSC HVDC power transmission scheme; active power steps response; control simulation; dynamic digital control scheme; equivalent continuous-time state-space models; nonlinear control design; power flow control; rectifier/inverter actuators; robust DC-bus voltage control scheme;
Conference_Titel :
AC-DC Power Transmission, 2001. Seventh International Conference on (Conf. Publ. No. 485)
Print_ISBN :
0-85296-745-4
DOI :
10.1049/cp:20010529
