A direct approach for distribution system load flow solutions

By J. Teng. 2003

1,017 citations recorded by the source corpus.

A direct approach for unbalanced three-phase distribution load flow solutions is proposed in this paper. The special topological characteristics of distribution networks have been fully utilized to make the direct solution possible. Two developed matrices-the bus-injection to branch-current matrix and the branch-current to bus-voltage matrix-and a simple matrix multiplication are used to obtain load flow solutions. Due to the distinctive solution techniques of the proposed method, the time-consuming LU decomposition and forward/backward substitution of the Jacobian matrix or Y admittance matrix required in the traditional load flow methods are no longer necessary. Therefore, the proposed method is robust and time-efficient. Test results demonstrate the validity of the proposed method. The proposed method shows great potential to be used in distribution automation applications.

Subfields: Control and Systems Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/4b66aad8c8fee697b410737196284340679e1afd

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In Control and Systems Engineering

In Electrical and Electronic Engineering

Citations in the corpus

Exploiting the Radial Distribution Structure in Developing a Fast and Flexible Radial Power Flow for Unbalanced Three-Phase Networks (2010, methodology): “Teng [23] used the backward/forward approach as the solution procedure through developing two matrices and multiplying them together in a later stage of the solution to obtain a third matrix.”
A Multiobjective Heuristic for Reconfiguration of the Electrical Radial Network (2013, methodology): “The power-flow equations are exactly solved by a direct approach presented by Teng in 2003 [22].”
Optimal size and siting of multiple distributed generators in distribution system using bacterial foraging optimization (2014, methodology): “The above equation is generalized in matrix form by using the Bus current Injection to Branch Current matrix (BIBC) [15].”
Pandapower—An Open-Source Python Tool for Convenient Modeling, Analysis, and Optimization of Electric Power Systems (2017, methodology): “In addition to the default Newton-Raphson solver, pandapower also provides an implementation of a backward/forward sweep [27].”
Linear Power-Flow Formulation Based on a Voltage-Dependent Load Model (2013, methodology): “A direct method for PF solutions is proposed in [9] in which the loads are treated first as current source injections, and simple matrix calculations and iterative computations are used to find the bus voltages.”