Substitution-newton-Raphson method for the solution of electric network equations

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The power flow problem, in transmission networks, has been well solved, for most cases, using Newton-Raphson method (NR) and its decoupled versions. Generally speaking, the solution of a non-linear system of equations refers to two methods: NR and Successive Substitution. The proposal of this paper is to evaluate the potential of the Substitution-Newton-Raphson Method (SNR), which combines both methods, on the solution of the power flow problem. Simulations were performed using a two-bus test network in order to observe the characteristics of these methods. It was verified that the NR is faster than SNR, in terms of convergence, considering non-stressed scenarios. For those cases where the power flow in the network is closed to the limits (stressed system), the SNR converges faster. This paper presents the power flow formulation of the SNR and describes its potential for its application in special cases such as stressed scenarios. © 2006 IEEE.



Newton-Raphson method, power flow, stressed systems, Substitution, Power flow problem, Power flows, Successive substitutions, Test network, Circuit theory, Computer simulation, Inverse kinematics, Linear systems, Substitution reactions, Electric power transmission networks

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2006 IEEE PES Transmission and Distribution Conference and Exposition: Latin America, TDC'06.