Obtaining dynamic equivalents through the minimization of a line flows function

A methodology is presented to construct dynamic equivalents through matching line active power flows, following a variation on load demand. The external system is reduced to a few fictitious generators, whose parameters are to be estimated by an optimization procedure. Preliminary results show the feasibility of the methodology, and its ability to preserve the modal structure associated with the system under study.

[1]  Luis Rouco,et al.  Synchronic modal equivalencing (SME) for structure-preserving dynamic equivalents , 1996 .

[2]  A.H. El-Abiad,et al.  Dynamic equivalents using operating data and stochastic modeling , 1976, IEEE Transactions on Power Apparatus and Systems.

[3]  Joe H. Chow,et al.  Inertial and slow coherency aggregation algorithms for power system dynamic model reduction , 1995 .

[4]  R. Belhomme,et al.  A composite electromechanical distance approach to transient stability , 1991 .

[5]  D. Trudnowski.  Order reduction of large-scale linear oscillatory system models , 1994 .

[6]  Joe H. Chow,et al.  Power system reduction to simplify the design of damping controllers for interarea oscillations , 1996 .

[7]  Yao-nan Yu,et al.  Estimation of External Dynamic Equivalents of a Thirteen-Machine System , 1981, IEEE Transactions on Power Apparatus and Systems.

[8]  P. Kundur,et al.  Dynamic reduction of large power systems for stability studies , 1997 .

[9]  J. Douglas Faires,et al.  Numerical Analysis , 1981 .

[10]  Dejan J. Sobajic,et al.  Artificial neural network based identification of dynamic equivalents , 1992 .

[11]  D.N. Ewart,et al.  Dynamic equivalents from on-line measurements , 1975, IEEE Transactions on Power Apparatus and Systems.

[12]  Joe H. Chow,et al.  Time-Scale Modeling of Dynamic Networks with Applications to Power Systems , 1983 .

[13]  George C. Verghese,et al.  Extensions, simplifications, and tests of synchronic modal equivalencing (SME) , 1997 .

[14]  Jorge J. Moré,et al.  The Levenberg-Marquardt algo-rithm: Implementation and theory , 1977 .

[15]  P. Kokotovic,et al.  Area Decomposition for Electromechanical Models of Power Systems , 1980 .

[16]  Louis Wehenkel,et al.  USE OF KOHONEN FEATURE MAPS FOR THE ANALYSIS OF VOLTAGE SECURITY RELATED ELECTRICAL DISTANCES , 1998 .

[17]  Lamine Mili,et al.  Dynamic Ward equivalents for transient stability analysis , 1994 .