A New Distribution System Power Flow Method Using Symmetrical Components

대칭성분을 이용한 3상 배전계통 조류계산 기법

  • Published : 2002.01.01

Abstract

This paper proposes a new power flow method for distribution system analysis by modifying the conventional back/forward sweep method using symmetrical components. Since the proposed method backward and forward sweeps with the variables expressed by symmetrical components, this method reduces computation time for matrix calculations; therefore, it is able to reduce the computational burden for real-time distribution network analysis. The proposed method was also developed to effectively analyze the unbalanced distribution system installing AVR(Auto Voltage Regulator), shunt capacitors. The proposed algorithm was compared with the conventional Back/forward Sweep method by applying both methods to three phase unbalanced distribution system of IEEE 123-bus model, and the test results showed that the proposed method would outperformed the conventional method in real-time distribution system analysis.

Keywords

References

  1. William H. kersting, W. Howard Phillips, 'Distribution Feeder Line Models,' IEEE Transactions on Industry applications, Vol.31, No. 4, July/August 1995 https://doi.org/10.1109/28.395276
  2. IEEE Distribution Planning Working Group Report, 'Radial Distribution Test Feeders,' IEEE Transaction on Power Systems, Vol.6, No.2, August 1991 https://doi.org/10.1109/59.119237
  3. Carol S. Cheng, Dariush Shirmohammadi, 'A three-phase power flow method for real-time distribution system analysis,' IEEE transactions on power systems, Vol. 10, No. 2, May 1995 https://doi.org/10.1109/59.387902
  4. D. Das, H.S. Nagi, D.P. Kothri, 'Novel method for solving radial distribution network,' IEEE Proc.-Gener. Transm. Distrib., Vol. 141, No.4, July 1994
  5. John Wiley and Sons, 'Circuit Analysis of AC Power Systems, Vol. II,' New York, 1950
  6. Circuit Analysis of AC Power Systems v.Ⅱ John Wiley and Sons