Total transfer capability computation for multi-area power systems

This paper presents a method for multi-area power system total transfer capability (TTC) computation. This computation takes into account the limits on the line flows, bus voltage magnitude, generator reactive power, voltage stability, as well as the loss of line contingencies. The multi-area TTC problem is solved by using a network decomposition approach based on REI-type network equivalents. Each area uses REI equivalents of external areas to compute its TTC via the continuation power flow (CPF). The choice and updating procedure for the continuation parameter employed by the CPF is implemented in a distributed but coordinated manner. The proposed method leads to potential gains in the computational efficiency with limited data exchanges between areas. The developed procedure is successfully applied to the three-area IEEE 118-bus test system. Numerical comparisons between the integrated and the proposed multi-area solutions are presented for validation

[1]  Claudio A. Canizares,et al.  Point of collapse and continuation methods for large AC/DC systems , 1993 .

[2]  X. Wang,et al.  Lagrangian decomposition approach to active power congestion management across interconnected regions , 2001 .

[3]  G. C. Ejebe,et al.  Available transfer capability calculations , 1998 .

[4]  Pandelis N. Biskas,et al.  Decentralised congestion management of interconnected power systems , 2002 .

[5]  I. Wangensteen,et al.  Transmission management in the deregulated environment , 2000, Proceedings of the IEEE.

[6]  T. E. Dy Liacco,et al.  An On-Line Topological Equivalent of a Power System , 1978, IEEE Transactions on Power Apparatus and Systems.

[7]  P. Kundur,et al.  Towards the development of a systematic approach for voltage stability assessment of large-scale power systems , 1996 .

[8]  A. Abur,et al.  Two-level multi-area TTC calculation by updating power transfer distribution factors , 2005, IEEE Power Engineering Society General Meeting, 2005.

[9]  Marija D. Ilic,et al.  Available transmission capacity (ATC) and its value under open access , 1997 .

[10]  G. Irisarri,et al.  Real-Time External System Equivalent for on-Line Contingency Analysis , 1979, IEEE Transactions on Power Apparatus and Systems.

[11]  Paul Dimo,et al.  Nodal analysis of power systems , 1975 .

[12]  Venkataramana Ajjarapu,et al.  The continuation power flow: a tool for steady state voltage stability analysis , 1991 .

[13]  G. C. Ejebe,et al.  Fast calculation of linear available transfer capability , 1999 .

[14]  S. Deckmann,et al.  Studies on Power System Load Flow Equivalencing , 1980, IEEE Transactions on Power Apparatus and Systems.

[15]  G. A. Hamoud,et al.  Assessment of available transfer capability of transmission systems , 2000 .

[16]  Hsiao-Dong Chiang,et al.  CPFLOW: a practical tool for tracing power system steady-state stationary behavior due to load and generation variations , 1995 .

[17]  Ali Abur,et al.  Two-Layer Multi-Area Total Transfer Capability Computation , 2004 .

[18]  Ross Baldick,et al.  Coarse-grained distributed optimal power flow , 1997 .

[19]  M. Santos-Nieto,et al.  Fast calculation of linear available transfer capability , 1999, Proceedings of the 21st International Conference on Power Industry Computer Applications. Connecting Utilities. PICA 99. To the Millennium and Beyond (Cat. No.99CH36351).