An empirical criterion for the convergence of the fast decoupled load flow method

Journal Article · Tue May 01 00:00:00 EDT 1984 · IEEE Trans. Power Appar. Syst.; (United States)

DOI:https://doi.org/10.1109/TPAS.1984.318700· OSTI ID:6280991

Rao, P S.N.; Rao, K S.P.

This paper presents a study of the reliability and convergence characteristics of the Fast Decoupled Load Flow (FDLF) method. The results presented in the paper clearly show that the reliability of the FDLF method cannot be taken for granted for systems having lines of large R/X ratios and/or capacitive series branches. An empirical criterion for testing the reliability of the FDLF method for any given system is proposed. This involves the estimation of a scalar con stant from the given system parameters. It is shown that the magnitude of this constant is correlated to the rate of convergence of the FDLF method and the convergence could be expected only when the constant is less than unity. Results of studies on a large number of test cases are presented in order to validate the proposed criterion. In addition the results presented in the paper provide significant information on a number of aspects of the behaviour of the FDLF method.

• Research Organization: Department of Electrical Engineering, Indian Institute of Technology, New Delhi
• OSTI ID: 6280991
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Vol. PAS-103:5
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
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CALCULATION METHODS
NETWORK ANALYSIS
RELIABILITY
SCALARS
ENERGY SYSTEMS
TESTING
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