Kettner, Andreas MartinPaolone, Mario2020-02-072020-02-072020-02-072019-08-2610.1109/PTC.2019.8810904https://infoscience.epfl.ch/handle/20.500.14299/165186This paper investigates the impact of Kron reduction on the performance of numerical methods applied to the analysis of unbalanced polyphase power systems. Specifically, this paper focuses on power-flow study, state estimation, and voltage stability assessment. For these applications, the standard Newton-Raphson method, linear weighted-least-squares regression, and homotopy continuation method are used, respectively. The performance of the said numerical methods is assessed in a series of simulations, in which the zero-injection nodes of a test system are successively eliminated through Kron reduction.Kron reductionpolyphase power systemspower-flow studystate estimationvoltage stabilitytext::conference output::conference proceedings::conference paper