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DOE OSTI · 1909386

Neumann Series Based Voltage Sensitivity Analysis for Three Phase Distribution System

Kumar R., James Ranjith·Natarajan, Balasubramaniam·Pahwa, Anil
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Abstract

In this letter, a simplified voltage sensitivity analysis technique that can provide accurate estimates of voltage change across the network for a given change in bus power injections in a three-phase unbalanced distribution network is proposed. This technique is derived from the first-order approximation of the Neumann series, which allows maintaining the accuracy of the solution while the computational effort is reduced. Here, the proposed technique is tested on a 559-bus unbalanced distribution system with multiple distributed generation resources. The results show that the average error in the voltage estimates with the proposed method is not more than 0.3% with the execution time of similar order relative to the state-of-the-art sensitivity analysis methods.

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Kumar R., James Ranjith, Natarajan, Balasubramaniam, Pahwa, Anil. 2022-03-07. Neumann Series Based Voltage Sensitivity Analysis for Three Phase Distribution System. https://doi.org/10.1109/tpwrs.2022.3156435

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