Title :
Voltage stability and control modes in HVDC systems
Author_Institution :
Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
In this paper, according to the classical definition of the voltage stability of a load connected to a generator through a transmission line, a criterion called voltage stability index (VSI) which can be used to determine the voltage stability of the converter AC bus is proposed. A numerical algorithm to calculate the VSI is also developed, which is based on the linearization of the AC/DC system equations. Using the algorithm, the voltage stability of a typical HVDC inverter AC bus under several common used control modes is investigated
Keywords :
HVDC power transmission; invertors; power system control; power system dynamic stability; voltage control; HVDC systems; VSI; converter AC bus; numerical algorithm; short circuit ratio; transmission line; voltage control modes; voltage source inverter; voltage stability index; voltage stability modes; Analog-digital conversion; Circuit stability; Control systems; HVDC transmission; Power generation; Reactive power; Stability analysis; Stability criteria; Steady-state; Voltage control;
Conference_Titel :
Power System Technology, 1998. Proceedings. POWERCON '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4754-4
DOI :
10.1109/ICPST.1998.729334
