A Study on the Method of the Vulnerable Area Investigation In Severe Contingencies Using Branch Parameter Continuation Power Flow (BCPF)

  • Seo Sangsoo (Dept. of Electrical Engineering, Korea University) ;
  • Lee Byongjun (Dept. of Electrical Engineering, Korea University) ;
  • Kim Tae-Kyun (Korea Electric Power Research Institute) ;
  • Song Hwachang (Dept. of Electronic and Information Engineering, Kunsan National University)
  • 발행 : 2005.12.01

초록

The most widely used index for the vulnerable area investigation has been the reactive power margin or sensitivity analysis. But we can only obtain the results of these analyses if the results of load flow are convergent in severe contingencies. Otherwise these methods are not adoptable. This paper presents a good index for overcoming severe contingencies, though the power flow equation is unsolvable using the branch parameter continuation power flow. In simulation, the Korea Electric Power Corporation (KEPCO) Systems are applied.

키워드

참고문헌

  1. IEEE/PES Power System Stability Subcommittee, 'Voltage stability assessment, procedures and guides,' IEEE Report Final Draft, 2000
  2. T. Van Cutsem, 'A method to compute reactive power margins with respect to voltage collapse,' IEEE Trans. Power Systems, vol. 6, no. 1, pp. 145-156, Feb. 1991 https://doi.org/10.1109/59.131057
  3. A study on the assessment of the dynamic performance of Korea Electric Power System and its enhancement, final report, Korea Power Exchange, Seoul, Korea, Nov. 2002
  4. B. Lee, H. Song, S. Kim, S.-H. Kwon, G. Jang and V. Ajjarapu, 'A study on determination of interface flow limits in the KEPCO system using the modified continuation power flow (MCPF),' IEEE Trans. Power Systems, vol. 17, no. 3, pp. 557-564, Aug. 2002 https://doi.org/10.1109/TPWRS.2002.800874
  5. A.J. Flueck, J.R. Dondeti, 'A new continuation power flow tool for investigating the nonlinear effects of transmission branch parameter variations,' IEEE Trans. PWRS, vol. 15, no. 1, pp. 223-227, Feb. 2000
  6. V. Ajjarapu, C. Christy, 'The continuation power flow: a tool for steady state voltage stability analysis,' IEEE Trans. PWRS, vol. 7, no. 1, pp.416-423, Feb. 1992
  7. I. Dobson, 'Observations on the Geometry of Saddle Node Bifurcation and Voltage Collapse in Electrical Power Systems,' IEEE Trans. Circuit and Systems, vol. 39, no. 3, pp. 240-243, March 1992 https://doi.org/10.1109/81.128018
  8. B. Lee and V.Ajjarapu, 'Invariant subspace parametric sensitivity (ISPS) of structure preserving power system models,' IEEE Trans. PWRS, vol. 11, no. 2, pp. 845-850, May 1996
  9. Jooho Lee, Hwachang Song, Byungjun Lee, 'A study on the corrective control to restore power flow solvability in severe contingencies by using branch parameter continuation power flow,' 2003 Power Engineering Spring Conference, pp. 30-34