Abstract
This paper presents a new, robust, and fast technique to obtain the load flow solution in distribution networks. The proposed method is based on the Newton-Raphson technique using equivalent current-injection and rectangular coordinates. The load flow problem is considered as an optimization problem and is decoupled into two subproblems. The assumptions on voltage magnitudes, angles, and r/x ratios necessary for decoupling the network in the conventional FDPF are eliminated in the proposed method. This method is simple, insensitive to r/x ratios of the distribution lines, and uses a constant Jacobian matrix. It is solved similar to FDPF. Test results of the proposed method on a sample six-node and the IEEE 34-node systems are given to illustrate the superior performance. These results indicate that the proposed method is efficient and accurate and has great potential for online applications.
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