Commenced in January 2007
Paper Count: 30750
Application of Load Transfer Technique for Distribution Power Flow Analysis
Abstract:Installation of power compensation equipment in some cases places additional buses into the system. Therefore, a total number of power flow equations and voltage unknowns increase due to additional locations of installed devices. In this circumstance, power flow calculation is more complicated. It may result in a computational convergence problem. This paper presents a power flow calculation by using Newton-Raphson iterative method together with the proposed load transfer technique. This concept is to eliminate additional buses by transferring installed loads at the new buses to existing two adjacent buses. Thus, the total number of power flow equations is not changed. The overall computational speed is expectedly shorter than that of solving the problem without applying the load transfer technique. A 15-bus test system is employed for test to evaluate the effectiveness of the proposed load transfer technique. As a result, the total number of iteration required and execution time is significantly reduced.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1328112Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1283
 J.J.Grainger and W.D. Stevenson, Power system analysis, McGraw-Hill, 1994.
 S. Hadi, Power system analysis, McGraw-Hill, 2004.
 K.R.C. Mamandur, G.J. Berg, "Automatic adjustment of generator voltages in Newton-Raphson method of power flow solutions," IEEE Trans. Power Apparatus and Systems, vol. pas-101, no. 6, pp. 1400-1409, 1982.
 G. Huang and W. Ongsakul, "Managing the bottlenecks in parallel Gauss-Seidel type algorithms for power flow analysis", IEEE Power Industry and Computer Application, May 1993, 4-7.
 P.R. Bijwe and S.M. Kelapure, "Nondivergent Fast Power Flow Methods", IEEE Trans. on Power Systems, Vol. 18, No. 2, May 2003, 633-638.
 M.E. EI-Hawary and O.K. Wellon, "The alpha-modified quasi-second order Newton-Raphson method for load flow solutions in rectangular form," IEEE Trans. Power Apparatus and Systems, vol. pas-101, no. 6, pp. 854-866, 1982.
 B. Stott, "Decoupled Newton load flow," IEEE Trans. Power Apparatus and Systems, vol. pas-91, no. 5, pp. 1955-1959, 1972.
 F.F. W., "Theoretical study of the convergence of the fast decoupled load flow," IEEE Trans. Power Apparatus and Systems, vol. pas-96, no. 1, pp. 268-275, 1977.
 S.C. Chapra, Numerical methods for engineers: with programming and software applications, McGraw-Hill, 1998.
 D. Das, D.P. Kothari and A. Kalam, "Simple and efficient method for load flow solution of radial distribution networks", Electrical Power & Energy Systems, Vol. 17, pp. 335-346, 1995.