Metrika članka

  • citati u SCindeksu: 0
  • citati u CrossRef-u:0
  • citati u Google Scholaru:[=>]
  • posete u poslednjih 30 dana:9
  • preuzimanja u poslednjih 30 dana:1
članak: 1 od 11  
Back povratak na rezultate
Serbian Journal of Electrical Engineering
2012, vol. 9, br. 2, str. 201-215
jezik rada: engleski
vrsta rada: neklasifikovan
doi:10.2298/SJEE1202201S


Available transmission capacity assessment
(naslov ne postoji na srpskom)
School of Electrical Engineering, Belgrade

e-adresa: skokljev@etf.rs, sosic@etf.rs

Sažetak

(ne postoji na srpskom)
Effective power system operation requires the analysis of vast amounts of information. Power market activities expose power transmission networks to high-level power transactions that threaten normal, secure operation of the power system. When there are service requests for a specific sink/source pair in a transmission system, the transmission system operator (TSO) must allocate the available transfer capacity (ATC). It is common that ATC has a single numerical value. Additionally, the ATC must be calculated for the base case configuration of the system, while generation dispatch and topology remain unchanged during the calculation. Posting ATC on the internet should benefit prospective users by aiding them in formulating their requests. However, a single numerical value of ATC offers little for prospect for analysis, planning, what-if combinations, etc. A symbolic approach to the power flow problem (DC power flow and ATC) offers a numerical computation at the very end, whilst the calculation beforehand is performed by using symbols for the general topology of the electrical network. Qualitative analysis of the ATC using only qualitative values, such as increase, decrease or no change, offers some new insights into ATC evaluation, multiple transactions evaluation, value of counter-flows and their impact etc. Symbolic analysis in this paper is performed after the execution of the linear, symbolic DC power flow. As control variables, the mathematical model comprises linear security constraints, ATC, PTDFs and transactions. The aim is to perform an ATC sensitivity study on a five nodes/seven lines transmission network, used for zonal market activities tests. A relatively complicated environment with twenty possible bilateral transactions is observed.

Ključne reči

ATC; power flow; steady state security; power system markets

Reference

Hamoud, G. (2000) Feasibility assessment of simultaneous bilateral transactions in a deregulated environment. IEEE Transactions on power systems, vol. 15, br. 1, Feb. str. 22-26
Hirsch, P. (1998) Open access same-time information system (OASIS). u: International Conference on Electrical Power Systems Operation and Management, Zurich, Switzerland, 23 - 25 sept
Kirschen, D.S., Štrbac, G. (2004) Fundamentals of power system economics. Chichester: Wiley
Kumar, A., Srivastava, S.C., Singh, S.N. (2005) Congestion management in competitive power market: A bibliographical survey. Electric Power Systems Research, vol. 76, br. 1-3, Sep., str. 153-164
Levillain, C. (2008) Review of most recent blackouts or major incidents. u: 16th Power Systems Computation Conference, Glasgow, Scotland, 14-18 july
Marangon, L.J.W. (1996) Allocation of transmission fixed charges: An overview. IEEE Transactions on Power Systems, 11(3): 1409-1418
NERC (1996) Available Transfer Capability: Definitions and Determination. June
Sood, Y.R., Padhy, N.P., Gupta, H.O. (2002) Wheeling of Power under Deregulated Environment of Power Aystem - A Bibliographical Survey. IEEE Transaction on Power Systems, 17 (3): 870-878
Stagg, G.W., El-Abiad, A.H. (1968) computer methods in power system analysis. Tokio, Japan: Mc Graw-Hill
Stott, B., Jardim, J., Alsac, O. (2009) DC Power Flow Revisited. IEEE Transactions on Power Systems, 24(3): 1290-1300
Stott, B., Alsac, O., Monticelli, A. (1987) Security and optimization. Proceedings of the IEEE, vol. 75, br. 12, str. 1623-1644
Škokljev, I., Maksimović, V. (2004) Transaction allocation symbolic analysis method. European transactions on electrical power, vol. 14, br. 5, str. 261-275
Škokljev, I.A., Tošić, D.V. (1997) A new symbolic analysis approach to the DC load flow method. Electric Power Systems Research, 40(2): 127-135
Wolfram, S. (1991) Mathematica: A system for doing mathematics by computer. Reading, MA, itd: Addison-Wesley