DocumentCode :
2612119
Title :
An Optimal Power Flow Model and Approach with Static Voltage Stability Constraints
Author :
Zhao, J. ; Zhang, B. ; Chang, H.-D.
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing
fYear :
2005
fDate :
2005
Firstpage :
1
Lastpage :
6
Abstract :
A multiple contingency optimal power flow problem incorporating static voltage stability constraints is proposed. The distance in term of load MW between the current operating point and the point of collapse is used as the index for evaluating the voltage stability. A new decomposition and iteration method for solving the proposed MC-VSCOPF problem is presented. The continuation power flow is used as a module to obtain the voltage collapse points and check the voltage stability constraints while the sensitivities of the violated constraints with respect to any controls are used to construct the reduced OPF sub-problems. It provides the optimal solution both minimizing control costs and guaranteeing the voltage security level. Case studies with a practical 640-bus power system indicate that the proposed methods are effective and suitable for on-line applications in a large scale power system
Keywords :
iterative methods; large-scale systems; load flow; power system dynamic stability; power system security; voltage regulators; 640-bus power system; MC-VSCOPF; collapse point; current operating point; decomposition method; iteration method; large scale power system; multiple contingency optimal power flow problem; on-line applications; static voltage stability constraints; voltage security level; Cost function; Load flow; Newton method; Power generation; Power system analysis computing; Power system modeling; Power system planning; Power system security; Power system stability; Voltage control; Continuation Power Flow; Multiple Contingencies; Optimal Power Flow; Sensitivity; Voltage Stability Constraints;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES
Conference_Location :
Dalian
Print_ISBN :
0-7803-9114-4
Type :
conf
DOI :
10.1109/TDC.2005.1546845
Filename :
1546845
Link To Document :
بازگشت