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

Volume

8

Issue

1

fYear

1993

fDate

2/1/1993 12:00:00 AM

Firstpage

1

Lastpage

8

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;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.221241

Filename

221241