NATC and RATC Calculation in Restructured Power Systems

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The applications of available transfer capability (ATC) have received considerable attention in restructured power systems. System operators calculate and post ATC values for different time intervals considering power system operation issues, including security issues.  On the other hand, competitive electricity market has added economic issues to transmission services such that they could have different price, type (recallable/non-recallable) and curtailment cost. The inclusion of economic issues in ATC calculation to obtain NATC and RATC has not been sufficiently addressed yet. This paper presents a method to calculate ATC on a weekly base in restructured power systems which incorporates security and economic issues of transmission services. In particular, the proposed method addresses economic issues in the TRM calculation to obtain NATC and RATC incorporating transmission service price, type and curtailment cost. In addition, the impact of further utilization of transmission system on the expected curtailment cost of the system loads is also considered in NATC and RATC calculation. A series of analyses on the IEEE-RTS has been presented to demonstrate the application of the proposed method
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Available Transfer Capability; Transmission Service; Security Assessment

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North American Electricity Reliability Council, Available Transfer Capability: Definitions and determination, June 1996.

G. L. Landgren, S. W. Anderson, Simultaneous Power Interchange Capability, IEEE Trans. Of Power Apparatus and Systems, vol. 92 n. 6, Nov-Dec 1973, pp. 1973-1984.

S. Grijalva, P. W. Sauer, J. D. Weber, Enhancement of Linear ATC Calculations by the Incorporation of Reactive Power Flows, IEEE Trans. on Power Systems, vol. 18 n. 2, May 2003, pp. 619-624.

M. Shaaban et al, Calculation Of Total Transfer Capability Incorporating the Effect of Reactive Power, Electric Power System Research, vol. 64 n. 3, March 2003, pp. 181-188.

Y. Ou, C. Singh, Assessment ff Available Transfer Capability And Margins”, IEEE Trans. on Power Systems, vol. 17 n. 2, May 2002, pp. 463-468.

R. F. Chang et al, Method For Computing Probability Distributions Of Available Transfer Capability, IEE Proceedings Generation, Transmission and Distribution, vol. 149 n. 4, July 2002, pp. 427-431.

A. Berizzi et al, A Monte Carlo Approach For TTC Evaluation, Probabilistic Analysis of Total Transfer Capability Considering Security Constraints, IEEE Trans. on Power Systems, vol. 22 n.2, May 2007, pp. 639-647.

A. M. Leite Da Silva, J. G. De Carvalho Costa, C. Monteiro Mattar, A Probabilistic Approach for Determining the Optimal Amount of Transmission System Usage, IEEE Trans. on Power Systems, vol. 21 n. 4, Nov. 2006, pp. 1557-1564.

A. B. Rodrigues, M. G. Da Silva, Probabilistic Assessment of Available Transfer Capability Based on Monte Carlo Method With Sequential Simulation, IEEE Trans. on Power Systems, vol. 22 n. 1, Feb. 2007, pp. 484-492.

Rajabi-Ghahnavieh, A, Fotuhi-Firuzabad, M., Shahidehpour, M., Feuillet, R., Optimal Allocation of Available Transfer Capability in Operating Horizon, IEEE Trans. on Power Systems, vol. 24 n. 2, May 2009, pp. 967-975.

A. M. Leite da Silva, J. W. Marangon Lima, G. J. Anders, Available Transmission Capability-Sell Firm or Interruptible?, IEEE Trans. on Power Systems, vol. 14 n. 4, Nov. 1999, pp. 1299-1305.

Y.C. Chang, C.Y. Tsai, C.L. Su, C.N. Lu, Arrangement of recallable and nonrecallable transmission service reservations, IEEE Power Engineering Society International Conference on Power Industry Computer Applications, PICA 2001, 20-24 May 2001.

PJM ISO, “Transmission System Tariffs” May 2007. PJM Manual for Transmission Service Request.

G. Hamoud, “Assessment of available transfer capability of transmission system”, IEEE Trans. on Power Systems, vol. 15 n. 1, Feb. 2000, pp. 27-32.

X. Wang, J. R. McDonald, Modern Power System Planning, (McGraw-Hill, 1994).

H. Chiang, A. J. Flueck, K. S. Shah, and N. Balu, CPFLOW: A Practical Tool For Tracing Power System Steady-State Stationary Behavior Due To Load And Generation Variations, IEEE Trans. Power Systems, vol. 10 n. 2, May 1995, pp. 623–634.

IEEE Reliability Test System Task Force, IEEE Reliability Test System, IEEE Trans. of Power Apparatus and Systems, PAS-98 n. 6, Nov/Dec 1979, pp. 2047-2054.

Bonneville Power Administration Transmission Services, “Transmission And Ancillary Service Rate Schedules”, pp. 1-37, Effective October 1, 2007.

R. Billintion et al, “ A Reliability Test System for Educational Purposes”, IEEE Trans. on Power Systems, vol. 4 n. 3, Aug. 1989, pp. 1238-1244.

DIgSILENT GmbH, Heinrich-Hertz-Straße 9 72810 Gomaringen / Germany, Phone: +49-7072-9168-0-

Z. Li; W. Li; Technical challenges of ATC calculation in the power industry deregulated environment, International Conference on Power System Technology, PowerCon 2004, 21-24 Nov. 2004, Singapor.

R. Billinton; R. N. Allan, Reliability Evaluation of Engineering Systems (2nd Edition, Plenum Press, 1996).

A.P.S. Xia Feng, A. Meliopoulos, Methodology For Probabilistic Simultaneous Transfer Capability Analysis, IEEE Trans. on Power Systems, vol. 11 n. 3, Aug. 1996, pp. 1269-1278.


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