Title :
Reliability evaluation of composite systems considering voltage stability problems
Author :
Lin, Cheng ; Yongji, Guo ; Kai, Xiao
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
A new approach to evaluate reliability indices of composite system considering voltage stability based on Monte-Carlo simulation is presented. The adequacy analysis of each selected system state is carried out in two steps. In the first one, an optimal power flow, solved by a direct interior point (IP) method, is adopted to calculate the static voltage stability limit including maximum load and voltage limits in power systems. If the voltage instability occurs, the voltage limits are saved. In the second step, adequacy indices are evaluated considering changed load limits and voltage limits. A new software is developed based on the method mentioned above. Test of a 24-bus IEEE RTS shows that the software developed is valid
Keywords :
Monte Carlo methods; load flow; power system dynamic stability; power system reliability; 24-bus IEEE RTS; Monte-Carlo simulation; adequacy analysis; composite systems; direct interior point method; maximum load; optimal power flow; power systems; reliability evaluation; software; static voltage stability limit; voltage instability; voltage limits; voltage stability problems; Interconnected systems; Load flow; Modems; Power supplies; Power system analysis computing; Power system reliability; Power system simulation; Power system stability; Software testing; Voltage;
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.1998.729335
