Title :
Point of collapse and continuation methods for large AC/DC systems
Author :
Cañizares, Claudio A. ; Alvarado, Fernando L.
Author_Institution :
Escuela Politecnica Nacional, Quito, Ecuador
fDate :
2/1/1993 12:00:00 AM
Abstract :
The implementation of both point of collapse (PoC) methods and continuation methods for the computation of voltage collapse points (saddle-node bifurcations) in large AC/DC power systems is described. The performance of these methods is compared for real systems of up to 2158 buses. Computational details of the implementation of the PoC and continuation methods are detailed, and the unique problems encountered due to the presence of high-voltage direct-current (HVDC) transmission, area interchange power control, regulating transformers, and voltage and reactive power limits are discussed. The characteristics of a robust PoC power flow program are presented, and its application to detection and solution of voltage stability problems is demonstrated
Keywords :
DC power transmission; load flow; power system analysis computing; power system interconnection; power system restoration; power system stability; power transformers; reactive power; HVDC; continuation methods; large AC/DC power systems; load flow; performance; point of collapse; power system analysis computing; power system interconnection; reactive power; regulating transformers; restoration; saddle-node bifurcations; voltage collapse points; voltage stability; Bifurcation; Convergence; HVDC transmission; Jacobian matrices; Load flow; Power system dynamics; Power system reliability; Robust stability; Steady-state; Voltage;
Journal_Title :
Power Systems, IEEE Transactions on
